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我省稻田受多种杂草为害严重,是障碍水稻增产的一个重要原因。长期以来,采用人工中耕除草,付出大量劳力和工时,效果虽不彻底,对增产仍起到一定作用,已成为水稻生产上传统的技术措施。随着化学药剂除草技术的推广应用,消灭了草害,稻田是否还需要中耕,逐渐引起人们的重视。十多年来,国内外对化学除草后不中耕的研究日益增多,取得了一定成效,同时也还存在一些争议。今年我们设置小区对比试验,着重研究化学除草后,在控制草害的条件下,中耕与不中耕和产量的关系。
The rice fields in our province are severely damaged by various weeds and are an important reason for the increase in rice yield. For a long time, using artificial cultivation and weeding, paying a large amount of labor and man-hours has not achieved a complete result, and still plays a certain role in increasing production. It has become a traditional technical measure for rice production. With the popularization and application of chemical weeding technology, the elimination of grass damage and the need for cultivating paddy fields are gradually drawing people’s attention. For more than a decade, there has been a growing number of studies both at home and abroad about the non-tillage after chemical weed control and some achievements have been made. At the same time, there are still some controversies. This year, we set up a plot comparison test that focuses on the relationship between cultivating and non-cultivating and yielding under weed control conditions after chemical weeding.