引言随着我国农业机械化的发展,化学除莠也显得越来越重要了。近几年来在我国用于防除田間杂草的化学药剂,也与日俱坛。其中五氮酚(簡称PCP)在水田中的应用,在东北地区已进入推广阶段,上海市郊亦于去年开始試驗,且已取得一定效果。 Introduction With the development of China’s agricultural mechanization, chemical herbicides have become more and more important. In recent years in our country for the control of weeds in the field of chemical agents, but also with the altar. Among them, the application of PCP in paddy fields has entered into the promotion stage in the northeast region. The experiment in Shanghai’s suburbs also started last year and some results have been achieved.