Add organic fertilizer to improve fertilizer efficiency. The application of chemical fertilizers and organic fertilizers is more than that of single application of chemical fertilizers. Each kilogram of pure nitrogen increases the yield of wheat by 2 to 3 kilograms. Although there are many high-yielding wheat fields with simple chemical fertilizers, the use of chemical fertilizers is too high, the economic benefits are low, and the soil is easy to cause. In the knot, the physical and chemical properties deteriorate. Only by adding organic fertilizer, accelerating the fertilization of soil, and applying the same amount of fertilizer, you can increase the wheat yield to more than 400 kg, which is a multiplier.
Formulated with fertilization. Nitrogen, phosphorus and potassium must be applied together. On the basis of stable application of nitrogen fertilizer, phosphorus and potassium fertilizers should be added appropriately. Reasonable balance of fertilization, so that topdressing and base fertilizer are appropriate, and the application ratio of base fertilizer and top dressing is determined according to soil different soil quality. Generally, the application ratio of wheat field in sandy loam and light loam is 3:7; the ratio of application in medium loam and heavy loam is 4:6; the ratio of light-stick and heavy-stick wheat is 5:5. At the same time pay attention to the application of various trace elements.
Determine the best fertilization method based on the level of production. In the middle and low-yield wheat fields, a simple fertilization method (known as a bombardment) can be used. For the high-yield wheat fields, the average difference (R value) is much larger than that of the middle-low-yield wheat fields, indicating that the high-yield wheat fields should be fertilized. The sooner the middle and low-yield fields are applied, the better the topdressing time is. High-yield wheat fields generally do not catch back to the green fertilizer, because the pursuit of returning to the green fertilizer will cause the group to be too large and fall. However, high-yield wheat field topdressing should not be too much, too late, in order to prevent the effects of gluttony and late maturity affecting 1000-grain weight. Generally, the application of urea is less than 10 kg per mu, and it is appropriate to apply it to the rainy season from the end of February to the beginning of March.
Foliar spray effect is good. Spraying fertilizer on wheat foliar is also a method of economic fertilization. Foliar spray can be carried out at the booting stage of wheat, using 150 g of urea per acre plus 150 g of potassium dihydrogen phosphate to 60 kg of water on a sunny afternoon without wind.
Formulated with fertilization. Nitrogen, phosphorus and potassium must be applied together. On the basis of stable application of nitrogen fertilizer, phosphorus and potassium fertilizers should be added appropriately. Reasonable balance of fertilization, so that topdressing and base fertilizer are appropriate, and the application ratio of base fertilizer and top dressing is determined according to soil different soil quality. Generally, the application ratio of wheat field in sandy loam and light loam is 3:7; the ratio of application in medium loam and heavy loam is 4:6; the ratio of light-stick and heavy-stick wheat is 5:5. At the same time pay attention to the application of various trace elements.
Determine the best fertilization method based on the level of production. In the middle and low-yield wheat fields, a simple fertilization method (known as a bombardment) can be used. For the high-yield wheat fields, the average difference (R value) is much larger than that of the middle-low-yield wheat fields, indicating that the high-yield wheat fields should be fertilized. The sooner the middle and low-yield fields are applied, the better the topdressing time is. High-yield wheat fields generally do not catch back to the green fertilizer, because the pursuit of returning to the green fertilizer will cause the group to be too large and fall. However, high-yield wheat field topdressing should not be too much, too late, in order to prevent the effects of gluttony and late maturity affecting 1000-grain weight. Generally, the application of urea is less than 10 kg per mu, and it is appropriate to apply it to the rainy season from the end of February to the beginning of March.
Foliar spray effect is good. Spraying fertilizer on wheat foliar is also a method of economic fertilization. Foliar spray can be carried out at the booting stage of wheat, using 150 g of urea per acre plus 150 g of potassium dihydrogen phosphate to 60 kg of water on a sunny afternoon without wind.
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