Ammonium bicarbonate: Ammonium bicarbonate has strong volatility and has certain stimulating, corrosive and fumigation effects on pests, especially for red spiders, aphids, thrips and other small insects with weak endurance. Application method: Spray evenly with 1% ammonium hydrogencarbonate solution, spray once every 5 to 7 days, and spray 2 to 3 times.
Urea: Urea has the effect of destroying the chitin of insects. It is a mixture of urea, washing powder and water mixed in a ratio of 4:1:400. It is a "salt mixture" for cotton, vegetables and flowers. Various pests such as red spider beads have good control effects.
Superphosphate: In the adult stage of cotton bollworm, using 1% to 2% calcium phosphate leaching solution for foliar spray fertilizer, the amount of eggs in cotton fields decreased by 33.3% to 73.4%, with an average of 55%; The period of validity is generally 2 days to 3 days.
Grass ash: Grass ash is a kind of high-quality potash, and also contains phosphorus, calcium, magnesium, sulfur and various nutrients such as boron, manganese, copper, zinc and molybdenum. Use 10 kg of plant ash, 50 kg of water, soak for 24 hours, filter, take the filtrate spray, can effectively kill the aphids on the crop; in the cotton seedling stage, 20 kg ~ 25 kg per mu of plant ash, can be applied along the ridge, can Increase the ground temperature, reduce the occurrence of cotton blight, anthracnose, red rot, etc.; before planting onion, garlic or leeks, use 20 kg of grass ash per acre, apply to the bottom of the ditch, or in onion, garlic, alfalfa, etc. During the seedling stage of vegetables, 15 kg of grass ash per acre is applied, and then the soil is covered with soil, which can significantly reduce the damage of root mites and increase the yield of vegetables by 15% to 20%.
Silicon-calcium fertilizer: After the application of silicon-calcium fertilizer, most of the silicon accumulates in the epidermal cells of the crop, forming a very hard epidermal layer, thereby enhancing its ability to resist pathogens and pests. Some data show that corn, soybean and other crops, applying 30 kg to 40 kg of siliceous calcium fertilizer per mu, can significantly reduce the damage of corn borer and soybean pods; applying silicon-calcium fertilizer to rice can increase the degree of silicification of epidermal cells. Therefore, the ability to resist pests and diseases is significantly enhanced, the grain weight is increased, the yield is increased by 10% to 50%, the incidence of rice blast is reduced by 0.3% to 19%, the incidence index is decreased by 0.5% to 13.9%; in the double-season rice area, the utilization of silicon is high. The 1-3 to 1/2 return of the early rice straw can reduce the neck rickets by 2.63% to 7.23%, and the rice leaf roller is also significantly reduced.
Zinc fertilizer: After the sweet pepper is planted and slowed down, and the results are sprayed once with 0.05%-0.1% zinc sulphate solution, the occurrence of viral diseases can be reduced, and the fruit setting rate and single fruit weight can be significantly increased, and the yield is increased by 15% to 37%.
Manganese fertilizer: When planting Chinese cabbage, seed dressing with trace element manganese, or spraying with 0.1% to 0.2% manganese sulfate solution in the seedling stage, rosette stage and core period of Chinese cabbage, it has significant effect on Chinese cabbage heartburn. The control effect can increase the yield by 10% to 18% after the prevention and control, and the quality is improved.
Author: Wang Bo Source: China Daily specialty
Urea: Urea has the effect of destroying the chitin of insects. It is a mixture of urea, washing powder and water mixed in a ratio of 4:1:400. It is a "salt mixture" for cotton, vegetables and flowers. Various pests such as red spider beads have good control effects.
Superphosphate: In the adult stage of cotton bollworm, using 1% to 2% calcium phosphate leaching solution for foliar spray fertilizer, the amount of eggs in cotton fields decreased by 33.3% to 73.4%, with an average of 55%; The period of validity is generally 2 days to 3 days.
Grass ash: Grass ash is a kind of high-quality potash, and also contains phosphorus, calcium, magnesium, sulfur and various nutrients such as boron, manganese, copper, zinc and molybdenum. Use 10 kg of plant ash, 50 kg of water, soak for 24 hours, filter, take the filtrate spray, can effectively kill the aphids on the crop; in the cotton seedling stage, 20 kg ~ 25 kg per mu of plant ash, can be applied along the ridge, can Increase the ground temperature, reduce the occurrence of cotton blight, anthracnose, red rot, etc.; before planting onion, garlic or leeks, use 20 kg of grass ash per acre, apply to the bottom of the ditch, or in onion, garlic, alfalfa, etc. During the seedling stage of vegetables, 15 kg of grass ash per acre is applied, and then the soil is covered with soil, which can significantly reduce the damage of root mites and increase the yield of vegetables by 15% to 20%.
Silicon-calcium fertilizer: After the application of silicon-calcium fertilizer, most of the silicon accumulates in the epidermal cells of the crop, forming a very hard epidermal layer, thereby enhancing its ability to resist pathogens and pests. Some data show that corn, soybean and other crops, applying 30 kg to 40 kg of siliceous calcium fertilizer per mu, can significantly reduce the damage of corn borer and soybean pods; applying silicon-calcium fertilizer to rice can increase the degree of silicification of epidermal cells. Therefore, the ability to resist pests and diseases is significantly enhanced, the grain weight is increased, the yield is increased by 10% to 50%, the incidence of rice blast is reduced by 0.3% to 19%, the incidence index is decreased by 0.5% to 13.9%; in the double-season rice area, the utilization of silicon is high. The 1-3 to 1/2 return of the early rice straw can reduce the neck rickets by 2.63% to 7.23%, and the rice leaf roller is also significantly reduced.
Zinc fertilizer: After the sweet pepper is planted and slowed down, and the results are sprayed once with 0.05%-0.1% zinc sulphate solution, the occurrence of viral diseases can be reduced, and the fruit setting rate and single fruit weight can be significantly increased, and the yield is increased by 15% to 37%.
Manganese fertilizer: When planting Chinese cabbage, seed dressing with trace element manganese, or spraying with 0.1% to 0.2% manganese sulfate solution in the seedling stage, rosette stage and core period of Chinese cabbage, it has significant effect on Chinese cabbage heartburn. The control effect can increase the yield by 10% to 18% after the prevention and control, and the quality is improved.
Author: Wang Bo Source: China Daily specialty
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