How to apply fertilizer effectively in soils with different fertilizer retention capacity, nutrients, acidity and basicity?

The application of different fertilizers and different fertilization methods according to the nature of the soil is called soil fertilization, so how to apply fertilizer effectively in soils with different fertilizer conservation capacity, nutrients, acidity and basicity?

The most basic and effective method is:

The main results are as follows: 1. The fertilizer conservation capacity and fertilizer supply characteristics of soil have a great influence on the effect of fertilization. Usually the soil is sticky and heavy, the content of organic matter is more, and the fertility is stronger, even if there is more fertilizer at one time, the nutrients will not be lost. On the contrary, the soil belongs to sandy, the content of organic matter is less, the ability of fertilizer conservation is also relatively weak, in this kind of soil, the amount of fertilizer should not be too much, should be used a small amount for many times, so as to avoid waste caused by nutrient loss. However, the fertilizer supply characteristics of the soil are also different, and some of them are long and stable. this kind of soil is "too full to starve", and fertilization can be more and less frequently at one time; early fertilization should be paid attention to in early-developing fields with stamina but not enough stamina; early fertilization should be paid attention to in late-developing fields with stamina but not enough stamina.

2. The amount of various nutrients in the soil is the main basis for determining which fertilizer should be applied and how much. The nutrient status in the soil is not only related to the parent material of the soil, but also directly or indirectly to the former crops. generally speaking, if the previous crop is legume or green manure, there is more nitrogen in the soil, and more phosphorus and potassium fertilizer should be applied. If the previous crop is a gramineous crop such as rice or wheat, the soil nutrient consumption is more, and nitrogen, phosphorus and potassium fertilizer, especially nitrogen fertilizer, should be applied.

3. The acidity and basicity of the soil will affect the effect of fertilization, and the application of chemical fertilizer will affect the acidity and basicity of the soil. Alkaline fertilizers, such as ammonia, ammonium bicarbonate, calcium magnesium phosphate, etc., should be selected for acidic soils, and acidic fertilizers, such as calcium superphosphate and ammonium sulfate, should be selected for alkaline soils, so as to prevent the soil from becoming too acidic or alkaline. It is also conducive to the absorption and utilization of nutrients by crops.