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前言稗草是稻田的主要杂草,凡是种植水稻的地方几乎都受其害。柏各庄农垦区过去曾采用多种措施进行除稗,但都未能彻底控制危害。1971年以后逐渐推广以化学除草为主要手段的综合防除,才初步解决了稻田的草荒问题。笔者曾经历了该垦区控制稗草的全部过程,体会到:化学除草是对药剂、杂草、环境和作物四个因素相互关系的协调;了解杂草的生物学和生态学特性是决定防除效果的
Introduction Barnyardgrass is a major weed in paddy fields and is almost always harmed where rice is grown. In the past, Pokge Zhuang Reclamation Area has adopted various measures to remove barnyardgrass, but none of them has thoroughly controlled the damage. After 1971, we gradually popularized the comprehensive prevention and control with chemical weeding as the main method, and initially solved the problem of grassland waste in paddy fields. The author has gone through the whole process of controlling the barnyardgrass in this reclamation area and realized that chemical weeding is the coordination of the interrelationship of the four factors of medicament, weed, environment and crop. Understanding the biological and ecological characteristics of weed determines the effect of controlling of