A method of high-efficiency fertilization of corn with double-layer deep application

Abstract

The invention relates to a method for high-efficiency fertilization of corn by double-layer one-time deep application, which is to divide the fertilizer into two layers according to the proportion and apply deep one-time deep application to the soil when corn is planted in spring. The proportion of fertilizers in different soil layers is as follows: 100% phosphate fertilizer + 16% ~ 19% nitrogen fertilizer is applied at 5 ~ 7cm below the surface soil, and 81% ~ 84% nitrogen fertilizer + 100% potassium fertilizer is applied at 14 ~ 15cm below the surface soil. The method can meet the nutrient demand of spring corn in the whole growth period, has the characteristics of simplicity and labor saving, and has good effects in reducing environmental pollution caused by fertilization, effectively improving fertilizer utilization rate and reducing agricultural production cost and the like.

Description

technical field [0001] The invention relates to a high-efficiency fertilization method for spring corn in Northeast China, in particular to a high-efficiency fertilization method for double-layer deep fertilization of corn. Background technique [0002] Corn is one of the important food crops in Northeast China, and its yield level is closely related to soil fertility. In traditional farming, the phenomenon of blind fertilization is common, the fertilization method is unreasonable, the fertilization equipment is not matched, and the technology of nitrogen fertilization deep application has not been widely promoted; the proportion of nitrogen, phosphorus and potassium application is unreasonable, resulting in the imbalance of soil nutrients and the decline of soil fertility; The cold climate, short frost-free period, and low effective utilization of soil nutrients in the early stage of crop growth in Northeast China lead to problems such as low grain yield and low economic be...

AI Technical Summary

Problems solved by technology

In traditional farming, the phenomenon of blind fertilization is common, the fertilization method is unreasonable, the fertilization equipment is not matched, and the technology of deep application of nitrogen fertilizer has not been widely promoted; the application ratio of nitrogen, phosphorus and potassium is unreasonable, resulting in imbalance of soil nutrients and decline of soil fertility; The climate in Northeast China is cold and cold, the frost-free period is short, and the effective utilization rate of soil nutrients in the early stage of crop growth is low, resulting in low grain production and low economic benefits.

Images