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近年来,我县少数农户在单季晚稻病虫防治中误用草甘膦造成药害的情形时有发生,受害面积及危害程度有扩大趋势,产量损失80%～100%。草甘膦药害已成为影响水稻高产、稳产的因素之一。为了能正确诊断草甘膦药害病状,及时采取补救措施,将药害损失减少到最低程度。我们对单季稻草甘膦药害病状进行了观察及药害后补救措施进行了试验。1 材料与方法1.1 材料试验在长街镇大湖村科技户顾小陆单季稻田内进行。试验品种协优46,1998年6月7日播种,7月6日移栽。试验用的10%草甘膦水剂系江苏常熟市农化公司农药厂生产。补救药剂,0.15%皇嘉天然芸苔素乳油系浙江省义乌市皇
In recent years, a small number of peasants in our county mistakenly used glyphosate to cause phytotoxicity in single-season late rice pest control have occurred from time to time, the damage area and extent of harm have an expanding trend, yield loss of 80% to 100%. Glyphosate phytotoxicity has become one of the factors that affect the high yield and stable yield of rice. In order to correctly diagnose the symptoms of glyphosate injury, timely remedial measures to minimize the damage caused by injury. We tested the glyphosate-resistant symptoms of single-season rice and the remedial measures after injury. 1 Materials and methods 1.1 Materials test in the town of Lake Science and Technology, Gu Xiaolu single-season rice paddy field. The test variety Xieyou 46 was sown on June 7, 1998 and transplanted on July 6. The 10% glyphosate used in the experiment was produced by Changshu Agrochemicals Factory. Remedy, 0.15% Huangjia Natural Brassica oleracea Huang Yiwu City, Zhejiang Province