How to do fertilization medicine for winter wheat
The autumn sowing and seedling stage is the initial stage of various diseases of Cordyceps sinensis. Grasping the comprehensive control of wheat diseases and insects in autumn and autumn seedlings can not only control the damage of pests and diseases in this period, but also reduce the occurrence of pests and weeds in wheat during the whole growth period. It is a good foundation for the good harvest of the next year.
First, scientific use of drugs.
1. Wheat rust: 15-20 days after emergence of wheat, sprayed with Hugoli or triadimefon for prevention and treatment, that is, 12.5% ​​heparin WP 15-20 g or 15% triazolone WP 75 per mu.克 can be sprayed with 50 kg of water.
2. Wheat sheath blight: Wheat sheath blight can occur from wheat seedling stage to heading stage. The symptoms in the seedling stage are mainly manifested in the underground part. After the emergence, the underground stems of the wheat are damaged, brown spots appear, and the development is upward. 20% of the rust-wet WP can be used per acre or 75% of the 20% Jinggangmycin 50g. The ridge spray is effective.
3. Wheat total etch disease: The pathogen of total etch disease can be infiltrated in wheat seedling stage, and 20-30 days after emergence is the peak period of leaching disease. For the plots where wheat has been completely eroded in the past, use 12.5% ​​of the Hugo WP WP 15-20g or 20% of the rust emulsifiable concentrate 120-200ml/40-50kg, and spray the seedlings along the mulberry ridge. Significantly reduce the incidence of wheat spikes.
Second, reasonable fertilization.
1. Increase the amount of base fertilizer application: “Maixi is rich in the tires, and the base fertilizer is the foundationâ€. At the seedling stage, there is an appropriate amount of nitrogen nutrition and phosphorus and potassium fertilizer, which makes the wheat seedlings grow fast, and there are a certain number of healthy tillers before winter, and lay the foundation for the growth of ear, grain and weight gain after spring. The amount of base fertilizer accounts for 60%-70% of the total amount of fertilization, and 2000 kg of high-quality organic fertilizer is generally applied. According to the law of wheat absorption, the high-fertilizer water plot should be applied with 4-7 kg of urea per acre, 15-17 kg of diammonium phosphate, 12-17 kg of potassium chloride, or 45% of compound fertilizer 50 kg or 40% wheat. 50 kg of fertilizer. For medium and low-yield fertilizer plots, 2-5 kg ​​of urea, 18-22 kg of diammonium phosphate and 9-12 kg of potassium chloride should be applied per mu, and 45% compound fertilizer or 40% wheat special fertilizer 40-50 kg can also be used. The zinc-deficient plot can be used with 2 kg of zinc sulfate.
2. Appropriate use of seed fertilizer: Fertilization is the most cost-effective method of fertilization. Generally, about 10 kg of compound fertilizer can be used per mu. When seed dressing with micro-fertilizers such as zinc and manganese fertilizer, 26 g of zinc sulfate and 0.51 g of manganese sulfate per kg of seeds were used, and then seeded immediately after seed dressing.
First, scientific use of drugs.
1. Wheat rust: 15-20 days after emergence of wheat, sprayed with Hugoli or triadimefon for prevention and treatment, that is, 12.5% ​​heparin WP 15-20 g or 15% triazolone WP 75 per mu.克 can be sprayed with 50 kg of water.
2. Wheat sheath blight: Wheat sheath blight can occur from wheat seedling stage to heading stage. The symptoms in the seedling stage are mainly manifested in the underground part. After the emergence, the underground stems of the wheat are damaged, brown spots appear, and the development is upward. 20% of the rust-wet WP can be used per acre or 75% of the 20% Jinggangmycin 50g. The ridge spray is effective.
3. Wheat total etch disease: The pathogen of total etch disease can be infiltrated in wheat seedling stage, and 20-30 days after emergence is the peak period of leaching disease. For the plots where wheat has been completely eroded in the past, use 12.5% ​​of the Hugo WP WP 15-20g or 20% of the rust emulsifiable concentrate 120-200ml/40-50kg, and spray the seedlings along the mulberry ridge. Significantly reduce the incidence of wheat spikes.
Second, reasonable fertilization.
1. Increase the amount of base fertilizer application: “Maixi is rich in the tires, and the base fertilizer is the foundationâ€. At the seedling stage, there is an appropriate amount of nitrogen nutrition and phosphorus and potassium fertilizer, which makes the wheat seedlings grow fast, and there are a certain number of healthy tillers before winter, and lay the foundation for the growth of ear, grain and weight gain after spring. The amount of base fertilizer accounts for 60%-70% of the total amount of fertilization, and 2000 kg of high-quality organic fertilizer is generally applied. According to the law of wheat absorption, the high-fertilizer water plot should be applied with 4-7 kg of urea per acre, 15-17 kg of diammonium phosphate, 12-17 kg of potassium chloride, or 45% of compound fertilizer 50 kg or 40% wheat. 50 kg of fertilizer. For medium and low-yield fertilizer plots, 2-5 kg ​​of urea, 18-22 kg of diammonium phosphate and 9-12 kg of potassium chloride should be applied per mu, and 45% compound fertilizer or 40% wheat special fertilizer 40-50 kg can also be used. The zinc-deficient plot can be used with 2 kg of zinc sulfate.
2. Appropriate use of seed fertilizer: Fertilization is the most cost-effective method of fertilization. Generally, about 10 kg of compound fertilizer can be used per mu. When seed dressing with micro-fertilizers such as zinc and manganese fertilizer, 26 g of zinc sulfate and 0.51 g of manganese sulfate per kg of seeds were used, and then seeded immediately after seed dressing.
Article source: China Fertilizer Information Network
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