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从6月上、中旬开始,海宁市20多万亩(1亩=667平方米,下同)直播晚稻在使用除草剂美丰禾阔净后,稻苗生长正常,农民比较满意。但盐仓镇红色村新风、联心组部分农民在使用该药后,出现药害现象,严重田块秧苗基本枯死,只好采取重播。据调查,造成药害现象的原因是多方面的,特殊的干旱天气和易旱的沙性土壤等是造成禾阔净药害的外因;稻谷催芽质量不符合要求,施药时秧苗未达到安全施药期(冒青至一叶一心期),是造成药害的主要内因。按照禾阔净的
From June onwards, mid-beginning, Haining City, more than 20 million mu (1 mu = 667 square meters, the same below) direct-seeded late rice in the use of herbicides Meifu Wo wide net, the rice seedlings grow normally, farmers are more satisfied. However, Yancang red village fresh air, some of the joint group of peasants in the use of the drug, the phenomenon of phytotoxicity, serious field seedlings basically dead, had to take replay. According to the survey, there are many reasons for the injury caused by pesticides. Special dry weather and drought-prone sandy soil are the external causes of the broad-based phytotoxicity. The germination quality of rice does not meet the requirements and the seedlings are not safe when applied Application period (green to leaf a heart period), is the main cause of injury. According to Wo wide net