论文部分内容阅读
一、药害产生的原因施用农药后在植物上产生药害,其原因是多方面的,但主要可以归结为药剂、植物和环境条件三种因素。1、药剂本身的因素:即农药的性质。各种农药的化学组成不同,对植物安全程度有时差别很大。在农药使用中,如果在植物上发生了药害,主要因素应当是药剂本身,这里涉及三个方面:(1)一般无机农药容易产生药害,有机合成农药和生物农药要安全得多。在不同的农药剂型中,易造成药害的排列顺序为:油剂>乳油>水剂>可湿性粉剂>粉剂>
First, the causes of injury caused by the application of pesticides on plants produce phytotoxicity for many reasons, but mainly due to agents, plants and environmental conditions of three factors. 1, the agent itself: the nature of pesticides. The chemical composition of various pesticides are different, the degree of plant safety sometimes vary widely. In the use of pesticides, if phytotoxicity occurs on plants, the main factor should be the pharmaceutical itself. There are three aspects involved here: (1) Generally, inorganic pesticides are easy to produce phytotoxicity and organic synthetic pesticides and biological pesticides are much safer. In different types of pesticides, easy to cause phytotoxicity in the order of: oil> EC> water> wettable powder> powder>