In addition to abundant nitrogen, phosphorus and potassium, biogas fertilizer also contains trace elements such as boron, copper, iron, manganese, calcium and zinc which play an important role in the growth of fruit trees, as well as a large amount of organic matter, various amino acids and vitamins. . In addition, the biogas fertilizer has a high degree of maturity. The application of biogas fertilizer can not only significantly improve the soil, but also ensure the good micro-ecological environment required for the growth of fruit trees, and also help to enhance its ability to resist freezing and drought, and reduce pests and diseases. The three-year comparative experiment conducted by the participants of the Shanting District Energy Office of Zaozhuang City and the Agricultural Broadcasting School of Shanting District of Zaozhuang City in Shandong Province showed that the new shoots of the nectarines, apples and other fruit trees were made early, strong and homogeneous, and the leaves were thick. , green, falling flowers and fruit, and the fruit is large, uniform, fresh and sweet, good appearance and color, resistant to storage and transportation. The specific methods and precautions for the cultivation of fruit trees with biogas fertilizer are described as follows:
1. Applying germination fertilizer before flowering Fertilization time is from early February to late March (depending on the flowering period of different fruit trees and different varieties), and the amount of fertilizer applied accounts for 25% of the annual application. Each plant is applied with 25 kg of biogas residue or 50 kg of biogas slurry, and 0.3 kg of borax is added. After application, the soil is quickly covered (if the biogas is insufficient, nitrogen, phosphorus and potassium fertilizers should be supplemented). At the same time, the crown can be sprayed with a clear biogas slurry filtered through double-layer gauze, and sprayed once every 10 days.
2. Full-time application of strong fruit fertilizers Every year, the flowering of fruit trees and the growth of fruits after flowering require more nutrients. The amount of fertilizer applied at this time should account for 50% of the annual application. Each plant is applied with 50 kg of biogas residue or about 100 kg of biogas slurry, plus 0.5 kg of potassium dihydrogen phosphate (the tree is weak, and the biogas is insufficient, it needs to be supplemented with chemical fertilizer). At the same time, the biogas slurry should be sprayed on the canopy leaf surface, and sprayed once every 10 days, the effect is better.
3. After re-application, “Yangyang Fertilizer†“Yangyang Fertilizer†should be selected after fruit harvesting, generally before the end of October, and the dosage should account for 25% of the annual application. 25 kg of biogas slurry per plant or 50 kg of biogas slurry (can be increased or decreased according to the number of fruits and crown size in the current year), and borax can be mixed with biogas residue as a constant. Cover the soil after fertilization.
4. Spray biogas slurry to control 50 kg of diseased insect biogas slurry, filter (place for 2 to 3 days), spray directly, once every 10 days, at the peak of the occurrence of pests such as yellow spider, red spider, aphid, etc. 3 times. If the temperature is below 25 °C, it can be sprayed at any time throughout the day; if the temperature exceeds 25 °C, it should be carried out after 5 pm. If 1/1000 to 1/3000 of the anti-sweeping is added to the biogas slurry, the effect of dispelling eggs is better, and the efficacy lasts for more than 20 days. Under normal circumstances, red and yellow spiders are inactivated for 3 to 4 hours, and 98.5% are dead for 5 to 6 hours.
Precautions
1. When spraying the fruit leaf surface with the biogas slurry, the biogas slurry in the biogas tank discharge room of normal gas production for more than 3 months must be used, and it should be clarified and filtered for 2 to 3 days.
2. Foliar application should be carried out on a sunny or cloudy day without wind, and it is best to choose it in the morning or evening when the humidity is high. Do not spray it on rainy days or at noon on sunny days. Spray the foliage to focus on the back of the leaves.
3. Combine the growth of fruit trees to determine the amount of fertilizer and operational skills. The growth of the potential difference should be reapplied, the growth of the tree is good, the aging tree is reapplied, the young tree is lightly applied, the fruit is reapplied, and the fruit is less.
4. The biogas slurry can be applied by roots or deep pumping; the biogas residue should be deeply applied by pumping. Deep application method of pumping groove: excavate the annular groove around the drip line of the canopy or dig 2~3 radiation grooves from the base. The groove width is 30 cm, the depth is 30 cm, and the length is 80-120 cm. After fertilization, the soil is covered in time.
Under normal circumstances, the cultivation of fruit trees by biogas fertilizer can save about 150 yuan per mu, and increase production by 12-28%.
Source: Luojiang County Supply and Marketing Cooperative Agricultural Economic Information Center
1. Applying germination fertilizer before flowering Fertilization time is from early February to late March (depending on the flowering period of different fruit trees and different varieties), and the amount of fertilizer applied accounts for 25% of the annual application. Each plant is applied with 25 kg of biogas residue or 50 kg of biogas slurry, and 0.3 kg of borax is added. After application, the soil is quickly covered (if the biogas is insufficient, nitrogen, phosphorus and potassium fertilizers should be supplemented). At the same time, the crown can be sprayed with a clear biogas slurry filtered through double-layer gauze, and sprayed once every 10 days.
2. Full-time application of strong fruit fertilizers Every year, the flowering of fruit trees and the growth of fruits after flowering require more nutrients. The amount of fertilizer applied at this time should account for 50% of the annual application. Each plant is applied with 50 kg of biogas residue or about 100 kg of biogas slurry, plus 0.5 kg of potassium dihydrogen phosphate (the tree is weak, and the biogas is insufficient, it needs to be supplemented with chemical fertilizer). At the same time, the biogas slurry should be sprayed on the canopy leaf surface, and sprayed once every 10 days, the effect is better.
3. After re-application, “Yangyang Fertilizer†“Yangyang Fertilizer†should be selected after fruit harvesting, generally before the end of October, and the dosage should account for 25% of the annual application. 25 kg of biogas slurry per plant or 50 kg of biogas slurry (can be increased or decreased according to the number of fruits and crown size in the current year), and borax can be mixed with biogas residue as a constant. Cover the soil after fertilization.
4. Spray biogas slurry to control 50 kg of diseased insect biogas slurry, filter (place for 2 to 3 days), spray directly, once every 10 days, at the peak of the occurrence of pests such as yellow spider, red spider, aphid, etc. 3 times. If the temperature is below 25 °C, it can be sprayed at any time throughout the day; if the temperature exceeds 25 °C, it should be carried out after 5 pm. If 1/1000 to 1/3000 of the anti-sweeping is added to the biogas slurry, the effect of dispelling eggs is better, and the efficacy lasts for more than 20 days. Under normal circumstances, red and yellow spiders are inactivated for 3 to 4 hours, and 98.5% are dead for 5 to 6 hours.
Precautions
1. When spraying the fruit leaf surface with the biogas slurry, the biogas slurry in the biogas tank discharge room of normal gas production for more than 3 months must be used, and it should be clarified and filtered for 2 to 3 days.
2. Foliar application should be carried out on a sunny or cloudy day without wind, and it is best to choose it in the morning or evening when the humidity is high. Do not spray it on rainy days or at noon on sunny days. Spray the foliage to focus on the back of the leaves.
3. Combine the growth of fruit trees to determine the amount of fertilizer and operational skills. The growth of the potential difference should be reapplied, the growth of the tree is good, the aging tree is reapplied, the young tree is lightly applied, the fruit is reapplied, and the fruit is less.
4. The biogas slurry can be applied by roots or deep pumping; the biogas residue should be deeply applied by pumping. Deep application method of pumping groove: excavate the annular groove around the drip line of the canopy or dig 2~3 radiation grooves from the base. The groove width is 30 cm, the depth is 30 cm, and the length is 80-120 cm. After fertilization, the soil is covered in time.
Under normal circumstances, the cultivation of fruit trees by biogas fertilizer can save about 150 yuan per mu, and increase production by 12-28%.
Source: Luojiang County Supply and Marketing Cooperative Agricultural Economic Information Center
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