one. Seed treatment: 1, with the amount of seed: Japan's special three islands Bupleurum seeds, 0.5 kg per acre species. 2, soaking: the seeds with breathable cloth. Pack the bag tightly and put it in a 30-35 degree warm water for three days. Change the water once a day. Then pick out the seeds, dry water mixed fire ash or fine soil for broadcast use. 3, germination: should use sand bed germination method. Method is: Choose a safe, dry, lee place, place a new 1-2 cm thick surface with a sieve of fine sand, sprinkle seeds in the sand 0.5 cm thick and then sand cover moisturizing, not to see the seeds for the degree, insulation 10 - 15 days.
two. Selection of land preparation: suitable for deep sandy soil, water-resistant sandy loam, suitable for high-quality farmyard fertiliser 50-80 lbs per acre before winter, deep digging. Before sowing, use 45% potassium sulfate compound fertilizer per acre, 100 pounds. The base fertilizer must be applied. Otherwise, the risk of top-dressing damage to seedlings is large, and the effect is poor, which affects the yield.
Picking up: 1, the slope is larger (greater than 30 degrees), the soil that is easy to lose should start from top to bottom, according to a 105 centimeter one by one ditch, namely: width 75 centimeters wide, groove width 30 centimeters, surface broadcast 4 lines The three islands Bupleurum, the sidewalk line spacing is 12 centimeters, the center line spacing is 30 centimeters. 2. Flatland: The direction of the drainage should start from the squat, according to 70 centimeters and one ravine, namely: 30 centimeters ditch, 40 centimeters raft, broadcast two lines, spacing 12 centimeters.
陇 20 20-25 cm high, so that the soil is fine, smooth and flat, on the real under the virtual. Open the planting ditch line on the surface of the ravine and the ditch is 5-6 cm deep. There should not be any large soil blocks or stones in the ditch to prevent the Bupleurum seed from falling into the seam.
Third, sowing:
1. Selection of sowing date: According to the characteristics of resistance to low temperature, no resistance to high temperature and requirement of moist environment when sprouting, the appropriate early sowing may be suitable for seed germination of Bupleurum chinense. Combined with the actual situation in my county, it can be planted every year until March. Late sowing, the early summer high temperature and strong light easily dying seedlings, unfavorable seedlings; early sowing seedlings in the summer to the temporary seedlings have grown up, increased resistance to high temperature and light, the seedling rate is high.
2. For the production of cover soil, 400-500 kg of fine fertilizer soil shall be prepared per acre, 0.5% of carbendazim powder shall be mixed with 50% carbazole, and 300 g of crystal trichlorfon shall be added to mix well and be stuffy for 1-2 hours. stand-by.
3. Seeding: Grab the seeds on the sunny days and the first day of the rain. Mix the seeds that have germinated with the fire ash, and soak the seeds evenly. Then, it is covered with pre-made cover soil, and the thickness is about 0.5 centimeters, and the seed is not seen as the degree.
4. Moisturizing: Moisture is required in front of the three islands Bupleurum to facilitate seed germination. In order to ensure that the soil is moist, it must be covered as soon as possible after sowing. The method is: sow or other non-polluting moisturizer along the sowing direction on the day of sowing or the next day. Cover the sowing ditch so that the cover is flush with the edge of the sowing ditch so as to achieve windproof moisturizing effect. For places with large wind, rocks should be pressed properly to prevent the wind from scattering the cover.
5, spraying herbicide: per acre with "Shi Tianbu" herbicide 250 ml watered 100-150 pounds, after sowing within the three uniform spray spasm (must be covered before spraying), spraying should be selected in On sunny days, watering is not possible immediately after medication.
Fourth, field management:
15-20 days after sowing, the seedlings should be removed in time. The time should be selected in the sunny afternoon or rainy day. In the meantime, pest control and weed control should be timely. Weeds that cannot be removed by herbicide should be manually weeded. Hu avoids grass shortages throughout the growing season, especially the seedling period. Once grass shortage occurs, the impact on yield is very large. Once the weeds are packed, weeding is difficult. Therefore, weeding should be done as early as possible.
1. Disease prevention and pest management: In the seedling stage of Bupleurum chinense, the growth of the roots of the underground pests is mainly controlled, and the diseases mainly prevent the standing dead seedlings. The method is: 20 ml of transplanting spirit plus 200 grams of trichlorfon per acre, watering 90-100 kg of spray, spraying mainly into the seedling ditch.
2, thinning: 70-100 days after sowing Qimiao seedlings, as soon as possible seedlings, the method of seedlings is to close the seedlings too close between the seedlings out, leaving a strong seedlings, the specific standard is: a single finger spacing 30,000 basic seedlings per acre are guaranteed.
3, top dressing: After the seedlings, depending on the seedlings appropriate topdressing fertilizer. The main quick-acting fertilizers were: 5 kg per gram of urea, 5 kg of potassium sulfate, rushing to apply before the rain, and applying to the seedlings of the Bupleurum seedlings. Do not use the seedlings of the Bupleurum seedlings in order to prevent seedlings from being burned. Good for the field, the foot of the field is not suitable for fertilizer
4. Topping: After entering July, the seedlings are transferred to the flowering period of bolting. The method is: When the seedlings are 40 centimeters high, use a pair of scissors to cut the top 10 centimeters. After 10-15 days, when the seedling height is 50 centimeters, cut it by 10 centimeters again, and use it for 3-4 times.
V. Harvesting and Processing:
Every December, when the temperature drops to around 0 degrees, the growth of Bupleurum ceases, and the above-ground parts begin to wither. At this time, excavation begins.
1. Harvest: Dig out the Bupleurum and cut off the stalk reed head with scissors to remove the disease and insect strains and clean the net with water.
2, processing: the washed Chaihu root drying to 40-50% dry, remove the root hair, regarded as a small anti-hand, with a cotton thread tied into a small amount of about 100 grams, drying to less than 13% moisture content That is the finished product.
two. Selection of land preparation: suitable for deep sandy soil, water-resistant sandy loam, suitable for high-quality farmyard fertiliser 50-80 lbs per acre before winter, deep digging. Before sowing, use 45% potassium sulfate compound fertilizer per acre, 100 pounds. The base fertilizer must be applied. Otherwise, the risk of top-dressing damage to seedlings is large, and the effect is poor, which affects the yield.
Picking up: 1, the slope is larger (greater than 30 degrees), the soil that is easy to lose should start from top to bottom, according to a 105 centimeter one by one ditch, namely: width 75 centimeters wide, groove width 30 centimeters, surface broadcast 4 lines The three islands Bupleurum, the sidewalk line spacing is 12 centimeters, the center line spacing is 30 centimeters. 2. Flatland: The direction of the drainage should start from the squat, according to 70 centimeters and one ravine, namely: 30 centimeters ditch, 40 centimeters raft, broadcast two lines, spacing 12 centimeters.
陇 20 20-25 cm high, so that the soil is fine, smooth and flat, on the real under the virtual. Open the planting ditch line on the surface of the ravine and the ditch is 5-6 cm deep. There should not be any large soil blocks or stones in the ditch to prevent the Bupleurum seed from falling into the seam.
Third, sowing:
1. Selection of sowing date: According to the characteristics of resistance to low temperature, no resistance to high temperature and requirement of moist environment when sprouting, the appropriate early sowing may be suitable for seed germination of Bupleurum chinense. Combined with the actual situation in my county, it can be planted every year until March. Late sowing, the early summer high temperature and strong light easily dying seedlings, unfavorable seedlings; early sowing seedlings in the summer to the temporary seedlings have grown up, increased resistance to high temperature and light, the seedling rate is high.
2. For the production of cover soil, 400-500 kg of fine fertilizer soil shall be prepared per acre, 0.5% of carbendazim powder shall be mixed with 50% carbazole, and 300 g of crystal trichlorfon shall be added to mix well and be stuffy for 1-2 hours. stand-by.
3. Seeding: Grab the seeds on the sunny days and the first day of the rain. Mix the seeds that have germinated with the fire ash, and soak the seeds evenly. Then, it is covered with pre-made cover soil, and the thickness is about 0.5 centimeters, and the seed is not seen as the degree.
4. Moisturizing: Moisture is required in front of the three islands Bupleurum to facilitate seed germination. In order to ensure that the soil is moist, it must be covered as soon as possible after sowing. The method is: sow or other non-polluting moisturizer along the sowing direction on the day of sowing or the next day. Cover the sowing ditch so that the cover is flush with the edge of the sowing ditch so as to achieve windproof moisturizing effect. For places with large wind, rocks should be pressed properly to prevent the wind from scattering the cover.
5, spraying herbicide: per acre with "Shi Tianbu" herbicide 250 ml watered 100-150 pounds, after sowing within the three uniform spray spasm (must be covered before spraying), spraying should be selected in On sunny days, watering is not possible immediately after medication.
Fourth, field management:
15-20 days after sowing, the seedlings should be removed in time. The time should be selected in the sunny afternoon or rainy day. In the meantime, pest control and weed control should be timely. Weeds that cannot be removed by herbicide should be manually weeded. Hu avoids grass shortages throughout the growing season, especially the seedling period. Once grass shortage occurs, the impact on yield is very large. Once the weeds are packed, weeding is difficult. Therefore, weeding should be done as early as possible.
1. Disease prevention and pest management: In the seedling stage of Bupleurum chinense, the growth of the roots of the underground pests is mainly controlled, and the diseases mainly prevent the standing dead seedlings. The method is: 20 ml of transplanting spirit plus 200 grams of trichlorfon per acre, watering 90-100 kg of spray, spraying mainly into the seedling ditch.
2, thinning: 70-100 days after sowing Qimiao seedlings, as soon as possible seedlings, the method of seedlings is to close the seedlings too close between the seedlings out, leaving a strong seedlings, the specific standard is: a single finger spacing 30,000 basic seedlings per acre are guaranteed.
3, top dressing: After the seedlings, depending on the seedlings appropriate topdressing fertilizer. The main quick-acting fertilizers were: 5 kg per gram of urea, 5 kg of potassium sulfate, rushing to apply before the rain, and applying to the seedlings of the Bupleurum seedlings. Do not use the seedlings of the Bupleurum seedlings in order to prevent seedlings from being burned. Good for the field, the foot of the field is not suitable for fertilizer
4. Topping: After entering July, the seedlings are transferred to the flowering period of bolting. The method is: When the seedlings are 40 centimeters high, use a pair of scissors to cut the top 10 centimeters. After 10-15 days, when the seedling height is 50 centimeters, cut it by 10 centimeters again, and use it for 3-4 times.
V. Harvesting and Processing:
Every December, when the temperature drops to around 0 degrees, the growth of Bupleurum ceases, and the above-ground parts begin to wither. At this time, excavation begins.
1. Harvest: Dig out the Bupleurum and cut off the stalk reed head with scissors to remove the disease and insect strains and clean the net with water.
2, processing: the washed Chaihu root drying to 40-50% dry, remove the root hair, regarded as a small anti-hand, with a cotton thread tied into a small amount of about 100 grams, drying to less than 13% moisture content That is the finished product.