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采用化学药剂防除稻田杂草是现代化农业生产的一项重大技术措施。使用除草剂将田间杂草消灭在萌芽之中,从而保证了秧苗不受草害,因此抓好药剂灭草,实行科学用药,意义很大。近年来全省由于严重缺水,在水田化学除草方面也随之带来了一些新的问题和新的特点;一是由于水量不足,势必延迟泡田时间,采取集中泡田,随整地随插秧,所以对杂草防除来说,会出现两种新的情况,一是不利诱发杂草实行插前灭草,二是大量杂草发生在插秧之后,发生量大而且集中,来势凶猛,若稍忽视就容易造成草荒,影响水稻生育,造成减产。
The use of chemicals to control weeds in paddy fields is a major technical measure for modern agricultural production. The use of herbicides to eliminate the weeds in the bud in the field, thus ensuring the seedlings are not grass damage, so good herbicide, the implementation of scientific medication, great significance. In recent years, due to severe water shortage in the whole province, some new problems and new features have also been brought about in the chemical weed-control of paddy fields. First, due to lack of water, it is bound to delay the time for soaking up the soils and take concentrated soaking fields. , So weed control, there will be two new situations, one is adverse to induce weeds to implement plug weeding, and second, a large number of weeds occurred after transplanting, the occurrence of large and concentrated, ferocious, if slightly Neglect will easily lead to grassland shortage, affecting rice growth, resulting in reduced production.