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NC—311(Pyrazosulfuron—ethyl,吡嘧黄隆)是日本日产化学公司研制的稻田新除草剂,在亚洲几个国家测试了单用或与其它除草剂混用的效果,20～30克有效成分/公顷的NC—311对阔叶杂草和莎草科杂草(包括多年生杂草),表现出良好的防效。NC—311在某些剂量下也能有效控制稗草。一些研究报道了作物对磺酰脲类除草剂耐性的机理,本文探讨NC—311在杂草和水稻间的选择作用及影响水稻生长的因素。
Pyrazosulfuron-ethyl (pyrazosulfuron-ethyl) is a new rice paddy herbicide developed by Japan’s Nissan Chemical Co., Ltd. It has been tested in several countries in Asia alone or in combination with other herbicides. 20-30 grams of active ingredient / The hectare of NC-311 shows good control over broad-leaved weeds and sedge weeds (including perennial weeds). NC-311 is also effective in controlling barnyard grass at some doses. Some studies reported the mechanism of crop tolerance to sulfonylurea herbicides. This paper explored the role of NC-311 in the selection of weeds and rice and the factors that affect rice growth.