论文部分内容阅读
近年来,棉花伏蚜危害日趋严重,常造成棉花起油膩、卷叶、晚发、早衰和蕾铃脱落,严重影响棉花的产量和品质。为此,我们在1979—1980年研究伏蚜发生规律的基础上,于1981年立题研究5%涕灭威颗粒剂防治伏蚜技术。通过室内外,不同时期以不同方法、不同用量等追施涕灭威颗粒剂防治伏蚜试验,以及1984年在盐山、河间、任邱、东光、肃宁、献县等六县6,000多亩棉田的示范表明:此项技术不但有效而且可变地上常规喷药为地下施药,变多次用药为一次用药。
In recent years, the harm of cotton aphids is becoming more and more serious, which often results in the greasy cotton, curly leaves, late-onset, premature aging and the falling off of the buds, seriously affecting the yield and quality of the cotton. To this end, we studied the law of occurrence of aphids from 1979 to 1980, based on the 1981 study of 5% aldicarb granules to control the aphid technology. Through the indoor and outdoor, at different times by different methods, different levels and other topdressing aldicarb granules prevention and control of the test of aphids, and in 1984 in Yanshan, Hejian, Ren Qiu, Dongguang, Suning, Xianxian six counties 6,000 Demonstration of a mu of cotton fields shows that this technique is not only effective but also variable on the conventional spraying for the underground spraying, changing the medication for a single medication.