First, strip application, hole application and centralized application, especially bio organic fertilizer and functional organic fertilizer. From the perspective of fertilizer efficiency, concentrated application is the most effective fertilizer to develop phosphorus nutrient. If phosphorus is directly applied to the soil, the fast available phosphorus in organic fertilizer is easy to be fixed by the soil, so the fertilizer efficiency is reduced. The key of furrow application and hole application is to apply nutrients within the extension range of root system. The most ideal method of fertilization is that the fertilizer should not touch the seed or the root of the crop. There is a certain distance from the root, and the crop can only be absorbed and utilized after growing to a certain extent.

Second, liquid organic fertilizer, which contains a lot of available nutrients, is applied with irrigation as topdressing. Some well decomposed organic fertilizers can also be used as topdressing. As topdressing, we should pay attention to the following three points: first, the release of a large number of slow effective nutrients in organic fertilizer needs a process, so when organic fertilizer is used as topdressing, it should be several days earlier than chemical fertilizer. Second, the nutrient content of organic fertilizer is low. When there is a lack of some components in organic fertilizer, appropriate single chemical fertilizer can be applied to supplement. Thirdly, it is better to reduce the amount of fertilizer and increase the amount of topdressing for high temperature cultivation crops.

Thirdly, the nutrient supply principle of organic fertilizer is to meet the requirement that the ratio of nitrogen provided by organic fertilizer to that provided by chemical fertilizer is 1 ∶ 1.  

Fourthly, the nutrient release and transformation performance of organic fertilizer and soil fertility conservation performance are different in different texture soils, so different fertilization schemes should be adopted. In order to improve the physical and chemical properties of the soil and enhance the performance of fertilizer and water conservation, it is necessary to apply more organic fertilizer and increase the content of soil organic matter. However, for high-quality organic fertilizer with high nutrient content, it should not be used too much at one time. Excessive use is easy to burn seedlings, and the transformed available nutrients are easy to be lost. High quality organic fertilizer with high nutrient content can be divided into fertilizer and topdressing, which can be used for many times. The organic fertilizer applied in clay soil must be fully decomposed, the supply of clay nutrients is slow, and the organic fertilizer should be applied early to approach the roots of crops.