论文部分内容阅读
棉虫防治新对策之我见陈佩龙江苏射阳县棉花原种场２２４３００徐维骝江苏射阳县环保局２２４３００王昆江苏省南通农业学校２２６００７以往棉虫防治，６月底之前一般棉田用药２～５次，平均３次左右，全年用药８～２５次，平均１２次左右。且有越用越多的趋势。由于滥用...
My Opinion on New Counter-measures against Cotton Insects Chen Peilong Cotton Origin Field in Sheyang County, Jiangsu Province 224300 Xu Weidang Jiangsu Sheyang County Environmental Protection Bureau 224300 Wang Kun Nantong Agricultural School Jiangsu Province 226007 In the past, About 3 times on average, the annual medication 8 to 25 times, an average of 12 times. And the more you use the more the trend. Due to abuse ...