Many farmers adopt multiple models to build biogas digesters, increase their income, and optimize the family environment. In order to better play the role of biogas digesters, make full use of biogas fertilizers to create “harmless†agricultural products in agricultural production, and establish ecological agriculture. Now we introduce the comprehensive utilization technology of biogas fertilizers for reference.
I. Application of biogas fertilizer in planting industry
In addition to rich nitrogen, phosphorus, and potassium, biogas fertilizers also contain trace elements such as boron, copper, iron, manganese, calcium, zinc, etc., which play an important role in the growth of crops, as well as a large amount of organic matter, various amino acids, and vitamins. . The application of biogas fertilizer not only can significantly improve the soil, ensure the good micro-ecological environment needed for crop growth, but also help strengthen its antifreeze and drought resistance and reduce pests and diseases.
(1) The biogas fertilizer seed can increase fruit set rate by 5% or more, increase production by 10% - 30%, increase fruit sweetness by 0.5 - 1 degree, have beautiful fruit shape, high commodity value, can reduce fruit tree pests and diseases, and reduce costs. Significant economic benefits. The fruit tree that is completely grown with biogas fertilizer is a kind of green food.
1, technical points
(1) Fertilizer residue fertilization. In general, it should be combined with the growth of fruit trees to determine the amount of fertilizer and operating skills. The difference in growth potential should be re-applied, and the growing trend should be applied lightly; the aging tree should be re-applied, the juvenile trees should be given lightly; In the first half of November, the digester was mixed with straw, bran cake, and soil, and was layered into the fertilization ditch in the crown drip line. The dosage is: sapling: 4-8 kg per deciduous fruit tree, 4-6 kg per evergreen fruit tree. Hanging fruit trees: Apply 50 kg of biogas residue or 100 kg of biogas slurry per plant, plus 0.5 kg of potassium dihydrogen phosphate.
(2) Biogas slurry fertilization. When biogas slurry is applied in orchards, it must be diluted 2-3 times with clear water before use to prevent excessive root burns. Sapling fertilization can apply biogas slurry during the growth period (3-August) by digging a 3-5-inch shallow ditch in the canopy drip line, 5 kg per plant, removing the biogas slurry, diluting and pouring it. Or apply the biogas slurry and then apply appropriate amount of water solution to avoid burning the root system. Every 15 days or 30 days, apply slurry fertilizer. Propelling fertilization, 10 days before fruit shoots shoot, with 60% of biogas slurry mixed with water, 2 kg per plant, 15 days after the new shoots were removed, each plant applied 60% of 3 kg of biogas slurry. Keep fruits and fertilize. Evergreen fruit trees are applied before physiological drop in early May. Each plant applies 80% of biogas slurry or 2-3 kg of biogas residue. Deciduous fruit trees are applied at a fruit diameter of about 1cm. Each plant applies 80% of biogas fertilizer. - 3 kg.
(3) Biogas slurry foliar dressing. Before and after each growth period of fruit trees, biogas slurry can be used as foliar dressing. The specific method is: After the biogas slurry is taken out of the digester water pressure storage tank or storage tank, it is filtered (taken from the normal production of gas for more than 1 month of biogas slurry), the concentration is controlled at 50% - 60%, (ie according to the biogas slurry Concentration, application of crops and seasons, and temperature, the overall principle is: seedlings, young leaves, 1 part of biogas slurry plus 1-2 parts of water; summer high temperature, 1 part of biogas slurry plus 1 part water, low temperature, but also When you are old, you don't need to add water. Choose to spray in the morning, evening or cloudy days). When the biogas slurry is sprayed, the back surface should be emphasized. If the pests of the fruit trees are serious, appropriate amount of pesticides can be added for spraying. For fruit trees with many results, 0.05 to 0.1% of imported urea can be added to the biogas slurry; for young trees or fruiting In the fruit trees, 0.2-0.5% of phosphorus and potassium are added to the biogas slurry to promote the formation of flower buds in the following year. During fruit expansion, 0.15% of urea and 0.03% of potassium dihydrogen phosphate are sprayed into 100 kg of biogas slurry per acre. It is advisable to cover the leaves with water without drip. Spray once every 7-10 days and spray it many times.
(4) Biogas slurry control pests. In the period of high pests in March or May-July each year, select the high temperature afternoon, remove the biogas slurry from the biogas fertilizer and gauze it immediately (the parking time should not exceed 1 hour). Spray the fruit and leaves with the sprayer. Face, pest control, if the amount of detergent added to the biogas slurry better. By using this method to control aphids and red spiders of fruit trees, pests can be reduced by more than 50% within 48 hours.
(2) Biogas fertilizers and vegetables can improve the resistance to diseases and insect pests, reduce the investment of pesticides and fertilizers, improve the quality of vegetables, and avoid pollution. It is an effective way to develop pollution-free vegetables.
1 Technical points
(1) Biogas residue is used as base fertilizer and top dressing. When used as a basal fertilizer, depending on the variety of vegetables, 1500-3000 kg per acre is used. It is thrown in when plowing, or it can be applied before transplanting. When used as top dressing, the dosage per acre is 1500 kg-3000. In kilograms, when the fertilizer is applied, ditch or dig a hole beside the crop first, and immediately after fertilization, the soil shall be reconstituted.
(2) Biogas slurry is used as topdressing. It can be sprayed or sprayed at any time during the growth of vegetables. Applying 1500-300 kilograms per acre, fertilization should be carried out in the early morning or early evening. It is not suitable to apply fertilizer at strong sunlight and noon during the summer to prevent the fertilizers from disintegrating and burning the leaves and roots of vegetables.
(3) For foliar dressing, the biogas slurry should be first clarified and filtered, and the amount should be sprayed to the surface of the leaf to cover the fine mist without flowing. It should be noted that it is not appropriate to spray at noon during the summer and it is not appropriate to spray it in rainy days.
Second, the application of biogas fertilizer in the breeding industry
(I) Biogas Fertilizer Pig slurry contains a variety of amino acids and nutrients that are beneficial to the growth of pigs. It can promote the growth and development of pigs and improve the disease resistance of pigs. It can be slaughtered about 30 days earlier and can save about 50 kg of feed.
1, technical points
(1) Biogas digesters that normally produce gas and can burn for more than one month are not used for a long period of time and the biogas slurry in the waste pool cannot be used. Take the biogas slurry in the middle layer for feeding, remove the appropriate amount of biogas slurry before feeding, mix it into the feed after clarification, and after the feed is mixed, let it stand for 3-5 minutes in summer and feed it. The biogas slurry should not be taken out for more than 30 minutes.
(2) The amount of biogas slurry is determined according to the pig's different growth and development stages, body weight, food intake, and eating habits.
1 The medium-sized pigs with a body weight of 25 kilograms can be fed with biogas slurry. The method is: After routinely carrying out epidemic prevention, deworming, and stomach-building, first hungry 1-2 meals, increase appetite, and start adding a small amount of biogas slurry to the feed. , Paced training for 3-5 days, gradually increase after adjustment, 0.3-0.5 kg per meal.
2 Pigs weighing 50-100 kg, at this time the pig's bones develop rapidly, food intake increases, and the amount of biogas slurry should increase until it reaches 1.5 kg. If a small amount of bone and fish meal is added to the feed, the proliferation will be faster. The weight of the pig is about 120 kg, and the economic benefit is best.
3 Young pigs weighing less than 20 kilograms are generally not advised to add biogas slurry.
(3) Feeding pigs with biogas slurry. The principle of adding pigs in the feed is that the pigs do not have food left over. In addition, depending on the biogas slurry concentration, the addition amount can be appropriately increased or decreased.
(4) Notes:
1 Biogas digesters newly built or refueled must be used for 3 months after normal gas production, before they can be extracted and clarified and fed to pigs. Each meal is carried out 30 minutes before the pigs are fed.
2 Biogas digesters in biogas digesters that do not normally produce gas and that do not produce gas or are put into poisonous substances are prohibited from being used for feeding pigs.
3 The amount of biogas slurry used to feed pigs must be relatively stable. It is not possible for pigs to love more foods, but not to eat them, or even not to add them. This will disrupt the pig's taste and adversely affect the growth of pigs.
4 If too much biogas slurry is added, the growth of pigs will be negatively increased. Therefore, when the biogas slurry is fed to the pigs, the dynamics of the pigs should be observed. In particular, the morphology of the pig manure should be observed. If the pig manure is found or the manure appears as a cake In order to reduce the amount of biogas slurry fed, 0.1 kg should be reduced each time.
5 After sow weaning, the sows must suspend the use of additional biogas slurry to prevent pigs from becoming too fast.
(b) Biogas Fertilizer Fish Biogas fertilizer fish has obvious effects compared with traditional fish culture. First, it can significantly reduce the consumption of dissolved oxygen in pond water. Second, it can increase the effect of plankton biomass, increase the survival rate of fish, and reduce fish. disease.
Technical Points Take pond fish farming as an example
(1) Type and quantity of input fry: It is advisable to stock filter-feeding fish and omnivorous fish. Generally, the proportion of filter-feeding fish is not less than 70%, and that of omnivorous fish is 20%--30%.
(2) Biogas fertilizer extraction: In the normal fermentation state of the biogas digester, users of 8-10 cubic meters of biogas digesters can extract 600-800 kilograms in 5-7 days.
(3) Adult fish breeding: First, environmental conditions, water depth 1.5-2.5 meters, an area of ​​1-10 acres, flat bottom, sludge thickness less than 20 cm. The second is the stocking of fingerlings. Select the sunny days before and after February. At the same time, according to the local farming habits and pond water sources and water quality, determine the main breeding species and implement multi-species and multi-species polyculture to ensure proper conservation. The third is fertilization and feeding. After ponds are drained in winter, 800-2000 kilograms of biogas residues are used as base fertilizer per acre. After the fish is released, 200 kg of biogas fertilizer is applied per acre every 5 days from March to October. According to the fish weight of 3% -6% feeding. 40% less concentrate than normal. The fourth is a patrol pond that removes dirt, residual feeding, and weeds at any time to prevent flooding and disease. Fifth, the appropriate amount of marsh fertilizer to master, should master the transparency of the water color, the general transparency of not less than 20 cm. The fifth is to find timely prevention and treatment of fish diseases. Once fish diseases are found, they must be properly diagnosed and used promptly, and the appropriate drugs and foot medications should be selected (for specific measures, reference may be made to related fish disease control data). Many farmers adopt multiple models to build biogas digesters, increase their income, and optimize the family environment. In order to better play the role of biogas digesters, make full use of biogas fertilizers to create “harmless†agricultural products in agricultural production, and establish ecological agriculture. Now we introduce the comprehensive utilization technology of biogas fertilizers for reference.
I. Application of biogas fertilizer in planting industry
In addition to rich nitrogen, phosphorus, and potassium, biogas fertilizers also contain trace elements such as boron, copper, iron, manganese, calcium, zinc, etc., which play an important role in the growth of crops, as well as a large amount of organic matter, various amino acids, and vitamins. . The application of biogas fertilizer not only can significantly improve the soil, ensure the good micro-ecological environment needed for crop growth, but also help strengthen its antifreeze and drought resistance and reduce pests and diseases.
(1) The biogas fertilizer seed can increase fruit set rate by 5% or more, increase production by 10% - 30%, increase fruit sweetness by 0.5 - 1 degree, have beautiful fruit shape, high commodity value, can reduce fruit tree pests and diseases, and reduce costs. Significant economic benefits. The fruit tree that is completely grown with biogas fertilizer is a kind of green food.
1, technical points
(1) Fertilizer residue fertilization. In general, it should be combined with the growth of fruit trees to determine the amount of fertilizer and operating skills. The difference in growth potential should be re-applied, and the growing trend should be applied lightly; the aging tree should be re-applied, the juvenile trees should be given lightly; In the first half of November, the digester was mixed with straw, bran cake, and soil, and was layered into the fertilization ditch in the crown drip line. The dosage is: sapling: 4-8 kg per deciduous fruit tree, 4-6 kg per evergreen fruit tree. Hanging fruit trees: Apply 50 kg of biogas residue or 100 kg of biogas slurry per plant, plus 0.5 kg of potassium dihydrogen phosphate.
(2) Biogas slurry fertilization. When biogas slurry is applied in orchards, it must be diluted 2-3 times with clear water before use to prevent excessive root burns. Sapling fertilization can be applied during the growth period (March-August). The method is: dig 3-5-inch shallow ditch in the canopy dripping line, 5 kg per plant, remove the biogas slurry, and then dilute the slurry. Or apply the biogas slurry and then apply appropriate amount of water solution to avoid burning the root system. Every 15 days or 30 days, apply slurry fertilizer. Propelling fertilization, 10 days before fruit shoots shoot, with 60% of biogas slurry mixed with water, 2 kg per plant, 15 days after the new shoots were removed, each plant applied 60% of 3 kg of biogas slurry. Keep fruits and fertilize. Evergreen fruit trees are applied before physiological drop in early May. Each plant applies 80% of biogas slurry or 2-3 kg of biogas residue. Deciduous fruit trees are applied at a fruit diameter of about 1cm. Each plant applies 80% of biogas fertilizer. - 3 kg.
(3) Biogas slurry foliar dressing. Before and after each growth period of fruit trees, biogas slurry can be used as foliar dressing. The specific method is: After the biogas slurry is taken out of the digester water pressure storage tank or storage tank, it is filtered (taken from the normal production of gas for more than 1 month of biogas slurry), the concentration is controlled at 50% - 60%, (ie according to the biogas slurry Concentration, application of crops and seasons, and temperature, the overall principle is: seedlings, young leaves, 1 part of biogas slurry plus 1-2 parts of water; summer high temperature, 1 part of biogas slurry plus 1 part water, low temperature, but also When you are old, you don't need to add water. Choose to spray in the morning, evening or cloudy days). When the biogas slurry is sprayed, the back surface should be emphasized. If the pests of the fruit trees are serious, appropriate amount of pesticides can be added for spraying. For fruit trees with many results, 0.05 to 0.1% of imported urea can be added to the biogas slurry; for young trees or fruiting In the fruit trees, 0.2-0.5% of phosphorus and potassium are added to the biogas slurry to promote the formation of flower buds in the following year. During fruit expansion, 0.15% of urea and 0.03% of potassium dihydrogen phosphate are sprayed into 100 kg of biogas slurry per acre. It is advisable to cover the leaves with water without drip. Spray once every 7-10 days and spray it many times.
(4) Biogas slurry control pests. In the period of high pests in March or May-July each year, select the high temperature afternoon, remove the biogas slurry from the biogas fertilizer and gauze it immediately (the parking time should not exceed 1 hour). Spray the fruit and leaves with the sprayer. Face, pest control, if the amount of detergent added to the biogas slurry better. By using this method to control aphids and red spiders of fruit trees, pests can be reduced by more than 50% within 48 hours.
(2) Biogas fertilizers and vegetables can improve the resistance to diseases and insect pests, reduce the investment of pesticides and fertilizers, improve the quality of vegetables, and avoid pollution. It is an effective way to develop pollution-free vegetables.
1 Technical points
(1) Biogas residue is used as base fertilizer and top dressing. When used as a basal fertilizer, depending on the variety of vegetables, 1500-3000 kg per acre is used. It is thrown in when plowing, or it can be applied before transplanting. When used as top dressing, the dosage per acre is 1500 kg-3000. In kilograms, when the fertilizer is applied, ditch or dig a hole beside the crop first, and immediately after fertilization, the soil shall be reconstituted.
(2) Biogas slurry is used as topdressing. It can be sprayed or sprayed at any time during the growth of vegetables. Applying 1500-300 kilograms per acre, fertilization should be carried out in the early morning or early evening. It is not suitable to apply fertilizer at strong sunlight and noon during the summer to prevent the fertilizers from disintegrating and burning the leaves and roots of vegetables.
(3) For foliar dressing, the biogas slurry should be first clarified and filtered, and the amount should be sprayed to the surface of the leaf to cover the fine mist without flowing. It should be noted that it is not appropriate to spray at noon during the summer and it is not appropriate to spray it in rainy days.
Second, the application of biogas fertilizer in the breeding industry
(I) Biogas Fertilizer Pig slurry contains a variety of amino acids and nutrients that are beneficial to the growth of pigs. It can promote the growth and development of pigs and improve the disease resistance of pigs. It can be slaughtered about 30 days earlier and can save about 50 kg of feed.
1, technical points
(1) Biogas digesters that normally produce gas and can burn for more than one month are not used for a long period of time and the biogas slurry in the waste pool cannot be used. Take the biogas slurry in the middle layer for feeding, remove the appropriate amount of biogas slurry before feeding, mix it into the feed after clarification, and after the feed is mixed, let it stand for 3-5 minutes in summer and feed it. The biogas slurry should not be taken out for more than 30 minutes.
(2) The amount of biogas slurry is determined according to the pig's different growth and development stages, body weight, food intake, and eating habits.
1 The medium-sized pigs with a body weight of 25 kilograms can be fed with biogas slurry. The method is: After routinely carrying out epidemic prevention, deworming, and stomach-building, first hungry 1-2 meals, increase appetite, and start adding a small amount of biogas slurry to the feed. , Paced training for 3-5 days, gradually increase after adjustment, 0.3-0.5 kg per meal.
2 Pigs weighing 50-100 kg, at this time the pig's bones develop rapidly, food intake increases, and the amount of biogas slurry should increase until it reaches 1.5 kg. If a small amount of bone and fish meal is added to the feed, the proliferation will be faster. The weight of the pig is about 120 kg, and the economic benefit is best.
3 Young pigs weighing less than 20 kilograms are generally not advised to add biogas slurry.
(3) Feeding pigs with biogas slurry. The principle of adding pigs in the feed is that the pigs do not have food left over. In addition, depending on the biogas slurry concentration, the addition amount can be appropriately increased or decreased.
(4) Notes:
1 Biogas digesters newly built or refueled must be used for 3 months after normal gas production, before they can be extracted and clarified and fed to pigs. Each meal is carried out 30 minutes before the pigs are fed.
2 Biogas digesters in biogas digesters that do not normally produce gas and that do not produce gas or are put into poisonous substances are prohibited from being used for feeding pigs.
3 The amount of biogas slurry used to feed pigs must be relatively stable. It is not possible for pigs to love more foods, but not to eat them, or even not to add them. This will disrupt the pig's taste and adversely affect the growth of pigs.
4 If too much biogas slurry is added, the growth of pigs will be negatively increased. Therefore, when the biogas slurry is fed to the pigs, the dynamics of the pigs should be observed. In particular, the morphology of the pig manure should be observed. If the pig manure is found or the manure appears as a cake In order to reduce the amount of biogas slurry fed, 0.1 kg should be reduced each time.
5 After sow weaning, the sows must suspend the use of additional biogas slurry to prevent pigs from becoming too fast.
(b) Biogas Fertilizer Fish Biogas fertilizer fish has obvious effects compared with traditional fish culture. First, it can significantly reduce the consumption of dissolved oxygen in pond water. Second, it can increase the effect of plankton biomass, increase the survival rate of fish, and reduce fish. disease.
Technical Points Take pond fish farming as an example
(1) Type and quantity of input fry: It is advisable to stock filter-feeding fish and omnivorous fish. Generally, the proportion of filter-feeding fish is not less than 70%, and that of omnivorous fish is 20%--30%.
(2) Biogas fertilizer extraction: In the normal fermentation state of the biogas digester, users of 8-10 cubic meters of biogas digesters can extract 600-800 kilograms in 5-7 days.
(3) Adult fish breeding: First, environmental conditions, water depth 1.5-2.5 meters, an area of ​​1-10 acres, flat bottom, sludge thickness less than 20 cm. The second is the stocking of fingerlings. Select the sunny days before and after February. At the same time, according to the local farming habits and pond water sources and water quality, determine the main breeding species and implement multi-species and multi-species polyculture to ensure proper conservation. The third is fertilization and feeding. After ponds are drained in winter, 800-2000 kilograms of biogas residues are used as base fertilizer per acre. After the fish is released, 200 kg of biogas fertilizer is applied per acre every 5 days from March to October. According to the fish weight of 3% -6% feeding. 40% less concentrate than normal. The fourth is a patrol pond that removes dirt, residual feeding, and weeds at any time to prevent flooding and disease. Fifth, the appropriate amount of marsh fertilizer to master, should master the transparency of the water color, the general transparency of not less than 20 cm. The fifth is to find timely prevention and treatment of fish diseases. Once fish diseases are found, they must be properly diagnosed and used promptly, and the appropriate drugs and foot medications should be selected (for specific measures, reference may be made to related fish disease control data). Many farmers adopt multiple models to build biogas digesters, increase their income, and optimize the family environment. In order to better play the role of biogas digesters, make full use of biogas fertilizers to create “harmless†agricultural products in agricultural production, and establish ecological agriculture. Now we introduce the comprehensive utilization technology of biogas fertilizers for reference.
I. Application of biogas fertilizer in planting industry
In addition to rich nitrogen, phosphorus, and potassium, biogas fertilizers also contain trace elements such as boron, copper, iron, manganese, calcium, zinc, etc., which play an important role in the growth of crops, as well as a large amount of organic matter, various amino acids, and vitamins. . The application of biogas fertilizer not only can significantly improve the soil, ensure the good micro-ecological environment needed for crop growth, but also help strengthen its antifreeze and drought resistance and reduce pests and diseases.
(1) The biogas fertilizer seed can increase fruit set rate by 5% or more, increase production by 10% - 30%, increase fruit sweetness by 0.5 - 1 degree, have beautiful fruit shape, high commodity value, can reduce fruit tree pests and diseases, and reduce costs. Significant economic benefits. The fruit tree that is completely grown with biogas fertilizer is a kind of green food.
1, technical points
(1) Fertilizer residue fertilization. In general, it should be combined with the growth of fruit trees to determine the amount of fertilizer and operating skills. The difference in growth potential should be re-applied, and the growing trend should be applied lightly; the aging tree should be re-applied, the juvenile trees should be given lightly; In the first half of November, the digester was mixed with straw, bran cake, and soil, and was layered into the fertilization ditch in the crown drip line. The dosage is: sapling: 4-8 kg per deciduous fruit tree, 4-6 kg per evergreen fruit tree. Hanging fruit trees: Apply 50 kg of biogas residue or 100 kg of biogas slurry per plant, plus 0.5 kg of potassium dihydrogen phosphate.
(2) Biogas slurry fertilization. When biogas slurry is applied in orchards, it must be diluted 2-3 times with clear water before use to prevent excessive root burns. Sapling fertilization can be applied during the growth period (March-August). The method is: dig 3-5-inch shallow ditch in the canopy dripping line, 5 kg per plant, remove the biogas slurry, and then dilute the slurry. Or apply the biogas slurry and then apply appropriate amount of water solution to avoid burning the root system. Every 15 days or 30 days, apply slurry fertilizer. Propelling fertilization, 10 days before fruit shoots shoot, with 60% of biogas slurry mixed with water, 2 kg per plant, 15 days after the new shoots were removed, each plant applied 60% of 3 kg of biogas slurry. Keep fruits and fertilize. Evergreen fruit trees are applied before physiological drop in early May. Each plant applies 80% of biogas slurry or 2-3 kg of biogas residue. Deciduous fruit trees are applied at a fruit diameter of about 1cm. Each plant applies 80% of biogas fertilizer. - 3 kg.
(3) Biogas slurry foliar dressing. Before and after each growth period of fruit trees, biogas slurry can be used as foliar dressing. The specific method is: After the biogas slurry is taken out of the digester water pressure storage tank or storage tank, it is filtered (taken from the normal production of gas for more than 1 month of biogas slurry), the concentration is controlled at 50% - 60%, (ie according to the biogas slurry Concentration, application of crops and seasons, and temperature, the overall principle is: seedlings, young leaves, 1 part of biogas slurry plus 1-2 parts of water; summer high temperature, 1 part of biogas slurry plus 1 part water, low temperature, but also When you are old, you don't need to add water. Choose to spray in the morning, evening or cloudy days). When the biogas slurry is sprayed, the back surface should be emphasized. If the pests of the fruit trees are serious, appropriate amount of pesticides can be added for spraying. For fruit trees with many results, 0.05 to 0.1% of imported urea can be added to the biogas slurry; for young trees or fruiting In the fruit trees, 0.2-0.5% of phosphorus and potassium are added to the biogas slurry to promote the formation of flower buds in the following year. During fruit expansion, 0.15% of urea and 0.03% of potassium dihydrogen phosphate are sprayed into 100 kg of biogas slurry per acre. It is advisable to cover the leaves with water without drip. Spray once every 7-10 days and spray it many times.
(4) Biogas slurry control pests. In the period of high pests in March or May-July each year, select the high temperature afternoon, remove the biogas slurry from the biogas fertilizer and gauze it immediately (the parking time should not exceed 1 hour). Spray the fruit and leaves with the sprayer. Face, pest control, if the amount of detergent added to the biogas slurry better. By using this method to control aphids and red spiders of fruit trees, pests can be reduced by more than 50% within 48 hours.
(2) Biogas fertilizers and vegetables can improve the resistance to diseases and insect pests, reduce the investment of pesticides and fertilizers, improve the quality of vegetables, and avoid pollution. It is an effective way to develop pollution-free vegetables.
1 Technical points
(1) Biogas residue is used as base fertilizer and top dressing. When used as a basal fertilizer, depending on the variety of vegetables, 1500-3000 kg per acre is used. It is thrown in when plowing, or it can be applied before transplanting. When used as top dressing, the dosage per acre is 1500 kg-3000. In kilograms, when the fertilizer is applied, ditch or dig a hole beside the crop first, and immediately after fertilization, the soil shall be reconstituted.
(2) Biogas slurry is used as topdressing. It can be sprayed or sprayed at any time during the growth of vegetables. Applying 1500-300 kilograms per acre, fertilization should be carried out in the early morning or early evening. It is not suitable to apply fertilizer at strong sunlight and noon during the summer to prevent the fertilizers from disintegrating and burning the leaves and roots of vegetables.
(3) For foliar dressing, the biogas slurry should be first clarified and filtered, and the amount should be sprayed to the surface of the leaf to cover the fine mist without flowing. It should be noted that it is not appropriate to spray at noon during the summer and it is not appropriate to spray it in rainy days.
Second, the application of biogas fertilizer in the breeding industry
(I) Biogas Fertilizer Pig slurry contains a variety of amino acids and nutrients that are beneficial to the growth of pigs. It can promote the growth and development of pigs and improve the disease resistance of pigs. It can be slaughtered about 30 days earlier and can save about 50 kg of feed.
1, technical points
(1) Biogas digesters that normally produce gas and can burn for more than one month are not used for a long period of time and the biogas slurry in the waste pool cannot be used. Take the biogas slurry in the middle layer for feeding, remove the appropriate amount of biogas slurry before feeding, mix it into the feed after clarification, and after the feed is mixed, let it stand for 3-5 minutes in summer and feed it. The biogas slurry should not be taken out for more than 30 minutes.
(2) The amount of biogas slurry is determined according to the pig's different growth and development stages, body weight, food intake, and eating habits.
1 The medium-sized pigs with a body weight of 25 kilograms can be fed with biogas slurry. The method is: After routinely carrying out epidemic prevention, deworming, and stomach-building, first hungry 1-2 meals, increase appetite, and start adding a small amount of biogas slurry to the feed. , Paced training for 3-5 days, gradually increase after adjustment, 0.3-0.5 kg per meal.
2 Pigs weighing 50-100 kg, at this time the pig's bones develop rapidly, food intake increases, and the amount of biogas slurry should increase until it reaches 1.5 kg. If a small amount of bone and fish meal is added to the feed, the proliferation will be faster. The weight of the pig is about 120 kg, and the economic benefit is best.
3 Young pigs weighing less than 20 kilograms are generally not advised to add biogas slurry.
(3) Feeding pigs with biogas slurry. The principle of adding pigs in the feed is that the pigs do not have food left over. In addition, depending on the biogas slurry concentration, the addition amount can be appropriately increased or decreased.
(4) Notes:
1 Biogas digesters newly built or refueled must be used for 3 months after normal gas production, before they can be extracted and clarified and fed to pigs. Each meal is carried out 30 minutes before the pigs are fed.
2 Biogas digesters in biogas digesters that do not normally produce gas and that do not produce gas or are put into poisonous substances are prohibited from being used for feeding pigs.
3 The amount of biogas slurry used to feed pigs must be relatively stable. It is not possible for pigs to love more foods, but not to eat them, or even not to add them. This will disrupt the pig's taste and adversely affect the growth of pigs.
4 If too much biogas slurry is added, the growth of pigs will be negatively increased. Therefore, when the biogas slurry is fed to the pigs, the dynamics of the pigs should be observed. In particular, the morphology of the pig manure should be observed. If the pig manure is found or the manure appears as a cake In order to reduce the amount of biogas slurry fed, 0.1 kg should be reduced each time.
5 After sow weaning, the sows must suspend the use of additional biogas slurry to prevent pigs from becoming too fast.
(b) Biogas Fertilizer Fish Biogas fertilizer fish has obvious effects compared with traditional fish culture. First, it can significantly reduce the consumption of dissolved oxygen in pond water. Second, it can increase the effect of plankton biomass, increase the survival rate of fish, and reduce fish. disease.
Technical Points Take pond fish farming as an example
(1) Type and quantity of input fry: It is advisable to stock filter-feeding fish and omnivorous fish. Generally, the proportion of filter-feeding fish is not less than 70%, and that of omnivorous fish is 20%--30%.
(2) Biogas fertilizer extraction: In the normal fermentation state of the biogas digester, users of 8-10 cubic meters of biogas digesters can extract 600-800 kilograms in 5-7 days.
(3) Adult fish breeding: First, environmental conditions, water depth 1.5-2.5 meters, an area of ​​1-10 acres, flat bottom, sludge thickness less than 20 cm. The second is the stocking of fingerlings. Select the sunny days before and after February. At the same time, according to the local farming habits and pond water sources and water quality, determine the main breeding species and implement multi-species and multi-species polyculture to ensure proper conservation. The third is fertilization and feeding. After ponds are drained in winter, 800-2000 kilograms of biogas residues are used as base fertilizer per acre. After the fish is released, 200 kg of biogas fertilizer is applied per acre every 5 days from March to October. According to the fish weight of 3% -6% feeding. 40% less concentrate than normal. The fourth is a patrol pond that removes dirt, residual feeding, and weeds at any time to prevent flooding and disease. Fifth, the appropriate amount of marsh fertilizer to master, should master the transparency of the water color, the general transparency of not less than 20 cm. The fifth is to find timely prevention and treatment of fish diseases. Once fish diseases are found, they must be properly diagnosed and used promptly, and the appropriate drugs and foot medications should be selected (for specific measures, reference may be made to related fish disease control data). Many farmers adopt multiple models to build biogas digesters, increase their income, and optimize the family environment. In order to better play the role of biogas digesters, make full use of biogas fertilizers to create “harmless†agricultural products in agricultural production, and establish ecological agriculture. Now we introduce the comprehensive utilization technology of biogas fertilizers for reference.
I. Application of biogas fertilizer in planting industry
In addition to rich nitrogen, phosphorus, and potassium, biogas fertilizers also contain trace elements such as boron, copper, iron, manganese, calcium, zinc, etc., which play an important role in the growth of crops, as well as a large amount of organic matter, various amino acids, and vitamins. . The application of biogas fertilizer not only can significantly improve the soil, ensure the good micro-ecological environment needed for crop growth, but also help strengthen its antifreeze and drought resistance and reduce pests and diseases.
(1) The biogas fertilizer seed can increase fruit set rate by 5% or more, increase production by 10% - 30%, increase fruit sweetness by 0.5 - 1 degree, have beautiful fruit shape, high commodity value, can reduce fruit tree pests and diseases, and reduce costs. Significant economic benefits. The fruit tree that is completely grown with biogas fertilizer is a kind of green food.
1, technical points
(1) Fertilizer residue fertilization. In general, it should be combined with the growth of fruit trees to determine the amount of fertilizer and operating skills. The difference in growth potential should be re-applied, and the growing trend should be applied lightly; the aging tree should be re-applied, the juvenile trees should be given lightly; In the first half of November, the digester was mixed with straw, bran cake, and soil, and was layered into the fertilization ditch in the crown drip line. The dosage is: sapling: 4-8 kg per deciduous fruit tree, 4-6 kg per evergreen fruit tree. Hanging fruit trees: Apply 50 kg of biogas residue or 100 kg of biogas slurry per plant, plus 0.5 kg of potassium dihydrogen phosphate.
(2) Biogas slurry fertilization. When biogas slurry is applied in orchards, it must be diluted 2-3 times with clear water before use to prevent excessive root burns. Sapling fertilization can be applied during the growth period (March-August). The method is: dig 3-5-inch shallow ditch in the canopy dripping line, 5 kg per plant, remove the biogas slurry, and then dilute the slurry. Or apply the biogas slurry and then apply appropriate amount of water solution to avoid burning the root system. Every 15 days or 30 days, apply slurry fertilizer. Propelling fertilization, 10 days before fruit shoots shoot, with 60% of biogas slurry mixed with water, 2 kg per plant, 15 days after the new shoots were removed, each plant applied 60% of 3 kg of biogas slurry. Keep fruits and fertilize. Evergreen fruit trees are applied before physiological drop in early May. Each plant applies 80% of biogas slurry or 2-3 kg of biogas residue. Deciduous fruit trees are applied at a fruit diameter of about 1cm. Each plant applies 80% of biogas fertilizer. - 3 kg.
(3) Biogas slurry foliar dressing. Before and after each growth period of fruit trees, biogas slurry can be used as foliar dressing. The specific method is: After the biogas slurry is taken out of the digester water pressure storage tank or storage tank, it is filtered (taken from the normal production of gas for more than 1 month of biogas slurry), the concentration is controlled at 50% - 60%, (ie according to the biogas slurry Concentration, application of crops and seasons, and temperature, the overall principle is: seedlings, young leaves, 1 part of biogas slurry plus 1-2 parts of water; summer high temperature, 1 part of biogas slurry plus 1 part water, low temperature, but also When you are old, you don't need to add water. Choose to spray in the morning, evening or cloudy days). When the biogas slurry is sprayed, the back surface should be emphasized. If the pests of the fruit trees are serious, appropriate amount of pesticides can be added for spraying. For fruit trees with many results, 0.05 to 0.1% of imported urea can be added to the biogas slurry; for young trees or fruiting In the fruit trees, 0.2-0.5% of phosphorus and potassium are added to the biogas slurry to promote the formation of flower buds in the following year. During fruit expansion, 0.15% of urea and 0.03% of potassium dihydrogen phosphate are sprayed into 100 kg of biogas slurry per acre. It is advisable to cover the leaves with water without drip. Spray once every 7-10 days and spray it many times.
(4) Biogas slurry control pests. In the period of high pests in March or May-July each year, select the high temperature afternoon, remove the biogas slurry from the biogas fertilizer and gauze it immediately (the parking time should not exceed 1 hour). Spray the fruit and leaves with the sprayer. Face, pest control, if the amount of detergent added to the biogas slurry better. By using this method to control aphids and red spiders of fruit trees, pests can be reduced by more than 50% within 48 hours.
(2) Biogas fertilizers and vegetables can improve the resistance to diseases and insect pests, reduce the investment of pesticides and fertilizers, improve the quality of vegetables, and avoid pollution. It is an effective way to develop pollution-free vegetables.
1 Technical points
(1) Biogas residue is used as base fertilizer and top dressing. When used as a basal fertilizer, depending on the variety of vegetables, 1500-3000 kg per acre is used. It is thrown in when plowing, or it can be applied before transplanting. When used as top dressing, the dosage per acre is 1500 kg-3000. In kilograms, when the fertilizer is applied, ditch or dig a hole beside the crop first, and immediately after fertilization, the soil shall be reconstituted.
(2) Biogas slurry is used as topdressing. It can be sprayed or sprayed at any time during the growth of vegetables. Applying 1500-300 kilograms per acre, fertilization should be carried out in the early morning or early evening. It is not suitable to apply fertilizer at strong sunlight and noon during the summer to prevent the fertilizers from disintegrating and burning the leaves and roots of vegetables.
(3) For foliar dressing, the biogas slurry should be first clarified and filtered, and the amount should be sprayed to the surface of the leaf to cover the fine mist without flowing. It should be noted that it is not appropriate to spray at noon during the summer and it is not appropriate to spray it in rainy days.
Second, the application of biogas fertilizer in the breeding industry
(I) Biogas Fertilizer Pig slurry contains a variety of amino acids and nutrients that are beneficial to the growth of pigs. It can promote the growth and development of pigs and improve the disease resistance of pigs. It can be slaughtered about 30 days earlier and can save about 50 kg of feed.
1, technical points
(1) Biogas digesters that normally produce gas and can burn for more than one month are not used for a long period of time and the biogas slurry in the waste pool cannot be used. Take the biogas slurry in the middle layer for feeding, remove the appropriate amount of biogas slurry before feeding, mix it into the feed after clarification, and after the feed is mixed, let it stand for 3-5 minutes in summer and feed it. The biogas slurry should not be taken out for more than 30 minutes.
(2) The amount of biogas slurry is determined according to the pig's different growth and development stages, body weight, food intake, and eating habits.
1 The medium-sized pigs with a body weight of 25 kilograms can be fed with biogas slurry. The method is: After routinely carrying out epidemic prevention, deworming, and stomach-building, first hungry 1-2 meals, increase appetite, and start adding a small amount of biogas slurry to the feed. , Paced training for 3-5 days, gradually increase after adjustment, 0.3-0.5 kg per meal.
2 Pigs weighing 50-100 kg, at this time the pig's bones develop rapidly, food intake increases, and the amount of biogas slurry should increase until it reaches 1.5 kg. If a small amount of bone and fish meal is added to the feed, the proliferation will be faster. The weight of the pig is about 120 kg, and the economic benefit is best.
3 Young pigs weighing less than 20 kilograms are generally not advised to add biogas slurry.
(3) Feeding pigs with biogas slurry. The principle of adding pigs in the feed is that the pigs do not have food left over. In addition, depending on the biogas slurry concentration, the addition amount can be appropriately increased or decreased.
(4) Notes:
1 Biogas digesters newly built or refueled must be used for 3 months after normal gas production, before they can be extracted and clarified and fed to pigs. Each meal is carried out 30 minutes before the pigs are fed.
2 Biogas digesters in biogas digesters that do not normally produce gas and that do not produce gas or are put into poisonous substances are prohibited from being used for feeding pigs.
3 The amount of biogas slurry used to feed pigs must be relatively stable. It is not possible for pigs to love more foods, but not to eat them, or even not to add them. This will disrupt the pig's taste and adversely affect the growth of pigs.
4 If too much biogas slurry is added, the growth of pigs will be negatively increased. Therefore, when the biogas slurry is fed to the pigs, the dynamics of the pigs should be observed. In particular, the morphology of the pig manure should be observed. If the pig manure is found or the manure appears as a cake In order to reduce the amount of biogas slurry fed, 0.1 kg should be reduced each time.
5 After sow weaning, the sows must suspend the use of additional biogas slurry to prevent pigs from becoming too fast.
(b) Biogas Fertilizer Fish Biogas fertilizer fish has obvious effects compared with traditional fish culture. First, it can significantly reduce the consumption of dissolved oxygen in pond water. Second, it can increase the effect of plankton biomass, increase the survival rate of fish, and reduce fish. disease.
Technical Points Take pond fish farming as an example
(1) Type and quantity of input fry: It is advisable to stock filter-feeding fish and omnivorous fish. Generally, the proportion of filter-feeding fish is not less than 70%, and that of omnivorous fish is 20%--30%.
(2) Biogas fertilizer extraction: In the normal fermentation state of the biogas digester, users of 8-10 cubic meters of biogas digesters can extract 600-800 kilograms in 5-7 days.
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