Efficient mechanical topdressing method for rice field in cold region

Abstract

The invention provides an efficient mechanical topdressing method for rice field in a cold region and relates to a mechanical topdressing method. The invention is mainly used for solving the problems that fertilizer in the existing rice seedling transplanting and fertilizing machine absorbs moisture in a topdressing process, moistened fertilizer can easily block a fertilizer applying pipe and normal mechanical topdressing is difficultly carried out and the problems that topdressing frequency is high and topdressing effect is poor in the traditional topdressing process. The efficient mechanical topdressing method for the rice field in the cold region is realized by the following steps: firstly, preparing a bulk blending fertilizer, wherein the bulk blending fertilizer is composed of a quick-acting nitrogen fertilizer and a controlled release nitrogen fertilizer; secondly, the bulk blending fertilizer is applied when a rice seedling transplanting machine is used for transplanting rice seedlings. According to the efficient mechanical topdressing method for the rice field in the cold region, the quick-acting nitrogen fertilizer and the controlled release nitrogen fertilizer are mechanically topdressed in one step when the rice seedlings are transplanted, the problems that fertilizer absorbs moisture, moistened fertilizer blocks the fertilizer applying pipe and normal mechanical topdressing is difficultly carried out are solved, and the bulk blending fertilizer containing the controlled release nitrogen fertilizer is topdressed in one step, so that the requirement of rice on nitrogen from a rice seedling transplanting period to a mature period is met; meanwhile, fertilizer is applied in one step by adopting the rice seedling transplanting and fertilizing machine, so that fertilization is simplified and efficient. The efficient mechanical topdressing method for the rice field in the cold region is applied to the agricultural technical field.

Description

Technical field [0001] The invention relates to a mechanized top dressing method. Background technique [0002] Nitrogen is one of the key limiting factors for crop yield increase. How to make nitrogen fertilizer application consistent with crop nitrogen demand is a hot research topic at home and abroad. In order to achieve the goal of high crop yield and high nutrient efficiency, the International Institute of Plant Nutrition has proposed the "4R" optimal nutrient management principle. That is, when fertilizing, the total amount should be scientifically determined; it should be applied in the best period; the most suitable variety should be selected; it should be applied in the right place. At present, the best nutrient management technology represented by the United States in the world has basically realized the "4R" principle, but there is still a big gap in China. Especially in my country's rice production, the degree of mechanization of fertilization is the lowest. Most o...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing rice transplanting and fertilizing machine is easy to absorb moisture during the fertilization process, and the fertilization pipe is easily blocked after deliquescence, which makes it difficult to carry out mechanical fertilization normally, and the traditional fertilization times are too many and the effect is poor. High-efficiency mechanized topdressing method for paddy fields