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我国各灌区,以大水漫壤为主要方式,其主要缺点是长期漫灌后会造成土壤结构破坏,土壤板结,于时出现龟裂,影响耕作和播种质量,是灌区当前迫切需要解决的土壤问题之一.据有关研究,施用水解聚丙烯腈,能增加水稳性团粒结构的数量,疏松土壤表现一定的增产作用.本试验是为了验证水解聚丙烯腈改良土壤板结的性能,现将试验的结果,讨论如下:一、试验方法1.水解聚丙烯腈液的制备
The main disadvantage of irrigated areas in China is that they are dominated by floods and floods. The main disadvantage is that the long-term flood irrigation will result in the destruction of soil structure, soil compaction, and sometimes cracking and affecting the quality of tillage and sowing. This is an urgent problem to be solved in irrigation areas According to the study, the application of hydrolyzed polyacrylonitrile, can increase the number of water-stable aggregate structure, the loose soil showed a certain increase in yield.This test is to verify the hydrolyzed polyacrylonitrile improve soil compaction performance, the test The results, discussed as follows: First, the test method 1. Preparation of hydrolyzed polyacrylonitrile solution