Due to the differences in nutrients, texture, soil temperature and pH in the soil, in addition to the “seed soil formula†according to the nutrient content of cultivated land, it should also be “fertilized by soil†to maximize the benefits of fertilizer.
There are differences in soil texture. The organic matter of clay soil is relatively rich. This kind of cultivated land has good water retention and fertilizer retention performance, but soil permeability is poor. Therefore, the applied organic fertilizer must be fully decomposed, the topdressing should be appropriate in advance, advocate the appropriate reduction of the number of fertilization, try to concentrate on multiple applications in the critical period of fertilizer demand, crops should not excessively apply nitrogen fertilizer to prevent crops "grey." The sandy loam soil is loose and the water and fertilizer are easily lost. This kind of soil must pay attention to the application of organic fertilizer. Because of the quick effect after fertilization, it should promote “less meals†to avoid loss and waste. The loamy soil is between the clay soil and the sand soil. It has the advantages of both. It can be fertilized according to the production requirements of the local climate crops and their growth and appearance.
The soil is “hot and coldâ€. The clay soil is a cold soil, the sandy soil is a hot soil, and the loam is a warm soil. The sandy soil advocates the use of cold organic fertilizers such as cow dung, and the clay soil advocates the application of hot organic fertilizers, such as chicken manure, or cow dung that has been fermented and fermented. In addition, due to nitrate fertilizers (such as ammonium nitrate, potassium nitrate, etc.), an endothermic reaction occurs during the dissolution process to cool the soil, so it should not be used on the viscosity.
Soil pH is different According to the relevant data, the content of available nitrogen in alkaline soil with pH value of 7~8 is higher. The application of ammonium nitrogen should be paid attention to deep application to prevent its loss caused by volatilization. In an acidic soil with a pH of 6 or less, elements such as potassium and calcium are easily replaced by hydrogen ions and are lost with water. The effectiveness of phosphorus is more susceptible to soil acidity and alkalinity. When the pH value is 6~7.5, its effectiveness is higher. When the pH value is above 7.5, it is easy to combine with calcium in soil to form insoluble calcium phosphate; When the value is 6 or less, it is combined with iron and aluminizing to synthesize insoluble aluminum phosphate. Therefore, the preparation of the fertilizer should be considered in order to avoid unnecessary losses.
There are differences in soil texture. The organic matter of clay soil is relatively rich. This kind of cultivated land has good water retention and fertilizer retention performance, but soil permeability is poor. Therefore, the applied organic fertilizer must be fully decomposed, the topdressing should be appropriate in advance, advocate the appropriate reduction of the number of fertilization, try to concentrate on multiple applications in the critical period of fertilizer demand, crops should not excessively apply nitrogen fertilizer to prevent crops "grey." The sandy loam soil is loose and the water and fertilizer are easily lost. This kind of soil must pay attention to the application of organic fertilizer. Because of the quick effect after fertilization, it should promote “less meals†to avoid loss and waste. The loamy soil is between the clay soil and the sand soil. It has the advantages of both. It can be fertilized according to the production requirements of the local climate crops and their growth and appearance.
The soil is “hot and coldâ€. The clay soil is a cold soil, the sandy soil is a hot soil, and the loam is a warm soil. The sandy soil advocates the use of cold organic fertilizers such as cow dung, and the clay soil advocates the application of hot organic fertilizers, such as chicken manure, or cow dung that has been fermented and fermented. In addition, due to nitrate fertilizers (such as ammonium nitrate, potassium nitrate, etc.), an endothermic reaction occurs during the dissolution process to cool the soil, so it should not be used on the viscosity.
Soil pH is different According to the relevant data, the content of available nitrogen in alkaline soil with pH value of 7~8 is higher. The application of ammonium nitrogen should be paid attention to deep application to prevent its loss caused by volatilization. In an acidic soil with a pH of 6 or less, elements such as potassium and calcium are easily replaced by hydrogen ions and are lost with water. The effectiveness of phosphorus is more susceptible to soil acidity and alkalinity. When the pH value is 6~7.5, its effectiveness is higher. When the pH value is above 7.5, it is easy to combine with calcium in soil to form insoluble calcium phosphate; When the value is 6 or less, it is combined with iron and aluminizing to synthesize insoluble aluminum phosphate. Therefore, the preparation of the fertilizer should be considered in order to avoid unnecessary losses.
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