Conventional fertilization and improvement measures for corn planting

First, farmers do not pay attention to the use of organic fertilizers, rarely use trace element fertilizers, and pay more attention to the use of nitrogen, phosphorus, and potassium fertilizers. However, the use ratio is unreasonable. Most of them use 15-15-15, 16-16-16 equivalent proportions of the mixture. Fertilizer, and blind fertilization, excessive use of nitrogen fertilizer. Heavy base fertilizer is applied to a small amount of fertilizer, and a considerable number of farmers fertilize it with “one bombardment” and no fertilizer is applied at all. In the fertilization method, shallow and superficial phenomena still exist. Fertilizer waste and environmental pollution.

Second, the farmers' fertilization is irrational. They have not applied fertilizer according to crop types, soil nutrient content, yield, and fertilizer performance. The phenomenon of blind fertilization is very prominent. In the fertilization structure, the amount of organic fertilizer is insufficient, the amount of nitrogen and phosphorus fertilizers is large, and the amount of potash fertilizer is not enough, neglecting the use of trace elements. The method of application was unreasonable, seed and fertilizer mixed sowing, no additional fertilizers were applied, shallow application of nitrogen fertilizers, superficial application, etc. resulted in burning seedlings and burning seedlings, and the fertilizer utilization rate was low.

The third is to carry out soil testing, formula fertilization and soil testing to understand the status of soil nutrients, analysis of demonstration results of fertilizer effect tests, and mastered the effect of soil testing, formula fertilization, and fertilizer utilization. The farmers' awareness of scientific fertilization and their levels have been greatly improved. The habits of blind fertilization and irrational fertilization have been greatly improved. They understand what is missing in the fields and do not want to use the same proportion of N, P and K 15-15-15 fertilizers. Different production and other conditions are determined, focusing on both base fertilizer and top dressing, and the top dressing must be applied in phases, with a small number of applications. Pay attention to the use of nitrogen fertilizer, reasonable matching of nitrogen, phosphorus and potassium elements, organic fertilizer, and trace element fertilizer. The fertilization method pays attention to separation of seeds and fertilizers, deep application of fertilizers, and application of earth after application.

The fourth is to strengthen media publicity for soil testing and formulating fertilization and establish a model fertilization demonstration field at different levels in counties, townships, and villages so that farmers can truly understand the effects and benefits of soil testing and formula fertilization. On the basis of recommended fertilization, adopt appropriate methods for different types of crops, different regions, planting patterns, and the characteristics of service targets, and mainly adopt general fertilizer distribution advice cards and promote the use of formula fertilizers for large farmers and industrialization bases. Dynamic monitoring, follow-up services, promotion of precision fertilization, technical training for the science and technology demonstration households, and application of fertilization advice cards, etc., have further improved the farmers' awareness of scientific fertilization and fertilization levels.

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