不污染环境的生物除草

• 作 者: 印培 陈颖
• 出 处: 环境
• 发表日期: 1995年03期
• 关键词: 生物除草 杂草 人工除草 苗木生产 化学除草 周围环境 莲子草 杂草利用 矿物质 马唐

在粮食、蔬菜、苗木生产中,杂草是它们的大敌;杂草夺走了它们的水分、营养、矿物质等,极大地妨碍了它们的茁壮成长。为此,人们采取许多措施防止杂草,如人工除草等,费工费钱,收效甚微。常用的化学除草,虽然效果好,但要求技术高,且最大的问题是污染周围环境。近年来,科学家独辟新途,采用生物防除杂草,收到了可喜的效果。现撷取一些有效的生物除草方

Weeds are their enemy in the production of grain, vegetables and seedlings. Weeds have taken away their water, nutrients, minerals and so on, greatly impeding their growth. To this end, people take many measures to prevent weeds, such as artificial weeding, labor costs money, with little success. Commonly used chemical weeding, although the effect is good, but requires high technology, and the biggest problem is the pollution of the surrounding environment. In recent years, scientists have created new ways to use weeds to control weeds and have received encouraging results. Now extract some effective biological herbicides