论文部分内容阅读
目前,免耕田化除重点是针对水稻收割后播栽小春作物前约1月时间内,已大量萌发生长的禾本科杂草、阔叶杂草、莎草科杂草及再生稻苗,于小麦(油菜)播栽前3—5天,亩用20％克芜踪水剂100—200毫升兑水50—70公斤喷雾;或于小麦(油苗)播栽前15—20天,亩用10％草甘磷水剂750—1000毫升,兑水50—70公斤喷雾。近年来,许多连续几年施用克芜踪的地区纷纷反映,由于克芜踪不能防除通泉草,致使通泉草由次要杂草上升为主要杂草。虽然草甘膦可防除通泉草,但草甘膦发挥药效时间较慢,不利于调节农时和劳力,因此,通泉草的危害已成为生产上一个亟待解决的问题。
At present, the focus of no-till farming is to focus on gramineous weeds, broad-leaved weeds, sedge weeds and regenerated rice seedlings that have been heavily germinated and grown within about one month prior to the sowing of the young spring crop after rice harvest 3-5 days before sowing of wheat (rapeseed), 50-200 kg of water is sprayed with 100-200 ml of 20-20% of gram tracer per mu; or 15-20 days before sowing of wheat (oil seedling) 10% glyphosate 750-1000 ml, watered 50-70 kg spray. In recent years, many areas that have used the Wuhu trail in successive years have reported that due to the lack of control of Tongquan grass, Tongquan grass has been raised from secondary weeds to major weeds. Although glyphosate can prevent Tongsun grass, but glyphosate play a slow effect is not conducive to the regulation of agricultural time and labor, therefore, Tongquan grass hazards have become a production of a problem to be solved.