How to apply phosphate fertilizer to grow wheat?

How to apply phosphate fertilizer to grow wheat? Please guide in wheat production, there are either heavy nitrogen and light phosphorus in some places, or the method of applying phosphorus is wrong, which affects the effect of increasing production. Scientific phosphorus application of wheat should pay attention to the following points: 1. Look at the content of soil organic matter. When the content of organic matter is less than 1.5%, the yield-increasing effect of applying phosphorus is the best; when the content of organic matter reaches 2-2.5%, the effect of applying phosphorus is not significant. Therefore, phosphate fertilizer should be given priority in the soil with low content of organic matter. 2. Determine the phosphate fertilizer according to the soil quality. In neutral and calcareous alkaline soil, water-soluble calcium superphosphate should be applied, calcium superphosphate is weakly acidic and can neutralize alkali in soil, and weak alkaline calcium magnesium phosphate fertilizer should be applied in acidic soil. The application of alkaline phosphate fertilizer in acidic soil can not only enhance its fertilizer efficiency, but also neutralize soil acid and avoid the harm of acid to wheat root system. 3. Look at the content of available phosphorus in soil. Phosphate fertilizer should first meet the phosphorus deficiency field and barren and thin field. In general, the available phosphorus in topsoil is lower than 5~10ppm, and the yield-increasing effect of phosphate fertilizer is the most significant; the content of available phosphorus is about 20ppm, and the use of phosphate fertilizer has a certain yield-increasing effect; the content of available phosphorus is higher than 30ppm, and the yield increase is not obvious with phosphate fertilizer. Therefore, phosphate fertilizer should be applied mainly in wheat fields where the content of available phosphorus is lower than that of 15ppm, especially in wheat fields where the content of available phosphorus is lower than 10ppm. 4. Apply phosphate fertilizer at different levels. The mobility of phosphate fertilizer is small, and a large number of secondary roots of wheat are mainly distributed in the soil layer less than 10 cm before winter, so the phosphate fertilizer of 1x4cm should be applied in the shallow soil layer of 5cm and 10cm, and the phosphate fertilizer should be applied in the deeper soil layer of 15cm. Ditch application before sowing, ploughing base application or seed dressing application should be adopted, and do not spread on the surface. 5. Mixed application of phosphate fertilizer and organic fertilizer. If all kinds of phosphate fertilizers in winter wheat are mixed with high quality organic fertilizers at the ratio of 1:10, not only the interface between phosphate fertilizer and soil can be reduced, but also the acidic substances in organic fertilizers can help to improve the availability of phosphate fertilizer and greatly improve the efficiency of phosphate fertilizer. 6. Spraying phosphate fertilizer in the middle and later stage. In the middle and later stage of wheat growth or in the case of lack of phosphate fertilizer, a small amount of superphosphate extract can be sprayed twice at seedling stage, jointing stage and booting stage, that is, 1 kilogram superphosphate per mu, crushed into powder, soaked in proper amount of water for one day and night, filtered and sprayed with 50 kilograms of water. If the mixture of 0.5 kilogram urea and plant ash leaching solution is sprayed, the effect of increasing yield is better. Click to get more wheat planting techniques click to get more nitrogen, phosphorus, potassium application techniques click to get more fertilizer application techniques