Saline-alkali wheat requires high yields and the use of chemical fertilizers is the key. Fertilizer properties are acidic, alkaline and neutral. Acidic and neutral fertilizers can be applied on saline-alkaline soils, while alkaline fertilizers should be avoided on saline-alkali soils. Such as urea, ammonium bicarbonate, ammonium nitrate, etc. do not leave any impurities in the soil, will not increase the salt and alkalinity in the soil, suitable for application on the saline-alkali land; ammonium sulfate is a physiological acidic fertilizer, in which ammonium is absorbed by wheat, Residual sulfate can reduce the alkalinity of salt and alkali, and it is also suitable for application. Alkaline fertilizers such as lime nitrogen and grass ash are not suitable for application on saline-alkali soil. Sodium nitrate is also a physiological alkaline fertilizer, and nitrate ions in total are wheat. After absorption, residual sodium not only increases soil salinity, but also increases soil alkalinity and makes the soil worse and worse. Saline-alkali wheat is also suitable for the application of ammonium chloride, so as to avoid increased salt and affect the growth of wheat. To apply phosphate fertilizer to wheat in saline land, calcium superphosphate should be used. The calcium magnesium phosphate fertilizer has no effect, but will increase the alkalinity of saline-alkali soil.

With the application of organic fertilizer, wheat grows well. Saline-alkali wheat application of chemical fertilizers, pay attention to the application of organic fertilizers, can not only add a variety of nutrients, but also help reduce the concentration of soil solution, reduce the use of chemical fertilizers caused by salt and alkali hazards.

The method of fertilizer application should be skillful, and it should be buried in small quantities several times. Saline-alkali wheat is different from the general good for applying chemical fertilizers. It is necessary to pay attention to a small number of applications in order to avoid a sudden high concentration of soil solution, which affects the absorption and growth of wheat. In addition, the application of ammonium nitrogen fertilizer on the saline-alkali soil can easily cause ammonia volatilization.

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