For most of the fruit trees, the nutrients consumed during the flowering period depend on the nutrient reserve of the tree for a year. In order to reduce consumption, concentrate nutrient supply, promote fruit setting and improve fruit quality, the flowering period management of Red Fuji Orchard should do the following:
Cut before flowering
After flower buds germinate (when they can look for the flower buds), the excess weak fruiting branches should be removed timely, and the slender bunches of flowers and branches should be thinned and cut, and some flower buds of medium and long fruiting branches should be eliminated. The ratio of flower buds to leaf buds should be maintained at 1:4 to 1:5.
Timely sparse flower
From the separation of the inflorescence to flowering, leave a robust inflorescence every 15-20 cm, remove excess inflorescences, and choose to leave part of the inflorescences. Each inflorescence leaves only one central flower and one side flower. The flowering period is not affected by the low temperature and freezing damage in early spring. On the basis of robust trees, full and rich flower buds, and ensuring pollination during flowering, the “flowers and fruits†technique can be vigorously promoted.
Flowering bee during flowering
Red Fuji flowering period can be used bee or horned wall bee pollination. Under normal circumstances, each bee can bear about 5 acres of orchard pollination tasks. The horned wall bees have good cold resistance and strong ability to pollinate flowers. The number of daily visits per wall bee is more than 4,000, and the number of bees per acre can be kept at about 100 heads.
Artificial pollination
Gathering Pollen Collect golden pollen, Red Star, Gala, and other pollen varieties with strong affinity with Red Fuji, and the mixed pollination results are better. It is best to collect pollen that contains medlars and collect the pollen. After the pollen is dried, it can be properly stored and used.
One method of pollination is artificial instruction, that is, using a pencil or a brush with a rubber head, put on the pollen, and gently tap on the stigma of the first flower that opens; the second is to pollinate the pollen bag, which is to mix the pollen 50 times. Talcum powder filler, into two layers of gauze bag, tied to the top of the bamboo raft, gently rock the crown, so that pollen evenly sprinkled on the stigma of the flower; Third, liquid pollination, the pollen was finely sieved to remove impurities Add 2 grams of pollen per kilogram of water, 100 grams of sugar, and 4 grams of borax to prepare a pollen suspension that is sprayed evenly on the stigma of flowers. This method should be used along with the use of low temperature and rainy days should not be used. The above three types are best achieved by artificial pointing, but the workload is larger.
Time data tests were conducted with the highest percentage of pollination and fruit setting on the day when flowers bloomed. Therefore, we must pay close attention to pollination in the petal water, stigma fresh, just open pollination. Since apple blossoms are often opened in batches, especially when the temperature is low, the flowering period tends to be prolonged. Therefore, the pollination should be staged and a batch of batches should be granted. Normally, the results of two to three consecutive batches are relatively satisfactory.
Flower spray
Spraying 1-2 times of 0.3% urea solution or borax solution during flowering has a very obvious effect on improving fruit setting rate. Spraying should be done in sunny weather. Normally it should be sprayed under cool and humid conditions before 10 o'clock in the morning and after 4 o'clock in the afternoon.
Prevention of flowering disasters
Taking timely measures can reduce the occurrence of disasters to a certain extent: low temperature during flowering, and irrigation can be carried out in advance; the flowers can be sprayed with water at a high temperature during the flowering period; in case of frost, the orchard can be smoked before arrival. After the flowering period is slightly frozen, it can promptly spray Shuofong 481 or Tianda 2116, which will help improve the fruit-setting rate of Red Fuji.
Cut before flowering
After flower buds germinate (when they can look for the flower buds), the excess weak fruiting branches should be removed timely, and the slender bunches of flowers and branches should be thinned and cut, and some flower buds of medium and long fruiting branches should be eliminated. The ratio of flower buds to leaf buds should be maintained at 1:4 to 1:5.
Timely sparse flower
From the separation of the inflorescence to flowering, leave a robust inflorescence every 15-20 cm, remove excess inflorescences, and choose to leave part of the inflorescences. Each inflorescence leaves only one central flower and one side flower. The flowering period is not affected by the low temperature and freezing damage in early spring. On the basis of robust trees, full and rich flower buds, and ensuring pollination during flowering, the “flowers and fruits†technique can be vigorously promoted.
Flowering bee during flowering
Red Fuji flowering period can be used bee or horned wall bee pollination. Under normal circumstances, each bee can bear about 5 acres of orchard pollination tasks. The horned wall bees have good cold resistance and strong ability to pollinate flowers. The number of daily visits per wall bee is more than 4,000, and the number of bees per acre can be kept at about 100 heads.
Artificial pollination
Gathering Pollen Collect golden pollen, Red Star, Gala, and other pollen varieties with strong affinity with Red Fuji, and the mixed pollination results are better. It is best to collect pollen that contains medlars and collect the pollen. After the pollen is dried, it can be properly stored and used.
One method of pollination is artificial instruction, that is, using a pencil or a brush with a rubber head, put on the pollen, and gently tap on the stigma of the first flower that opens; the second is to pollinate the pollen bag, which is to mix the pollen 50 times. Talcum powder filler, into two layers of gauze bag, tied to the top of the bamboo raft, gently rock the crown, so that pollen evenly sprinkled on the stigma of the flower; Third, liquid pollination, the pollen was finely sieved to remove impurities Add 2 grams of pollen per kilogram of water, 100 grams of sugar, and 4 grams of borax to prepare a pollen suspension that is sprayed evenly on the stigma of flowers. This method should be used along with the use of low temperature and rainy days should not be used. The above three types are best achieved by artificial pointing, but the workload is larger.
Time data tests were conducted with the highest percentage of pollination and fruit setting on the day when flowers bloomed. Therefore, we must pay close attention to pollination in the petal water, stigma fresh, just open pollination. Since apple blossoms are often opened in batches, especially when the temperature is low, the flowering period tends to be prolonged. Therefore, the pollination should be staged and a batch of batches should be granted. Normally, the results of two to three consecutive batches are relatively satisfactory.
Flower spray
Spraying 1-2 times of 0.3% urea solution or borax solution during flowering has a very obvious effect on improving fruit setting rate. Spraying should be done in sunny weather. Normally it should be sprayed under cool and humid conditions before 10 o'clock in the morning and after 4 o'clock in the afternoon.
Prevention of flowering disasters
Taking timely measures can reduce the occurrence of disasters to a certain extent: low temperature during flowering, and irrigation can be carried out in advance; the flowers can be sprayed with water at a high temperature during the flowering period; in case of frost, the orchard can be smoked before arrival. After the flowering period is slightly frozen, it can promptly spray Shuofong 481 or Tianda 2116, which will help improve the fruit-setting rate of Red Fuji.
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