草甘膦与抗草甘膦作物

The Glyphosate and Roundup Ready Crops

草甘膦是广谱、非选择性、无残留、苗后传导性除草剂,在世界各地广泛应用。随着1990年中期抗草甘膦作物开发成功,草甘膦被广泛用于各种抗性作物来防治禾本科与阔叶杂草。简要讨论了草甘膦使用现况及若干问题,如抗性作物推广导致除草剂使用的变化、雾滴飘移、抗性棉花繁殖器官的异常、草甘膦对非靶标生物的影响、草甘膦与其他农药的关系以及免耕与杂草抗性等。

Glyphosate is a non-selective, broad spectrum, non-residual and systemic, post-emergence applied herbicide. It has been used extensively through the whole world. With the introduction of Roundup Ready crops in the mid 1990s, glyphosate now widely used for controls a broad spectrum of grass and broad leaf weeds in GR crops. This article briefly summarizes the current status application of glyphosate and some proplems, such as： the changes in herbicide use patterns and production practices resulting from Roundup Ready crops, glyphosate spray drift management, reproductive abnormalities in resistant cotton, non-target effect of glyphosate, relation between glyphosate and other pesticides, no-till cropping systemes and resistance in weeds.