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近几年来,由于种植制度、耕作栽培及管理方面的原因,我县麦田草害面积逐年增加,尤以稻茬少(免)耕麦田的草害更为突出,一般发生程度2~3级,损失在一成以上。为此,作者在1985~1992年期间,对少(免)耕麦田杂草的发生特点及综合防治技术进行了研究。一、杂草发生特点1.出草早而齐、高峰期明显。据观察,少(免)耕麦田杂草出土时间比常规耕田早3~5天,且发
In recent years, due to the planting system, cultivation, cultivation and management, the area of grassland damage in our county has been increasing year by year, especially in grassland with less (free) tillage of rice stubble, generally occurring in grades 2 to 3, Loss of 10% or more. Therefore, during the period from 1985 to 1992, the author studied the occurrence characteristics and comprehensive control techniques of weeds in few (free) tillage wheat fields. First, the occurrence of weed 1. Early grass and grass, the peak is obvious. It is observed that less (free) tillage wheat field weeding than conventional farming 3 to 5 days earlier, and hair