论文部分内容阅读
用30%毒死蜱·多菌灵·福美双悬浮种衣剂对大豆苗期病虫害进行田间小区试验。结果表明,药剂和种子比1∶50、1∶70、1∶90处理大豆后,对大豆根潜蝇的防治效果分别为100%、100%和96.15%;对根腐病的防治效果分别为39.76%、40%和54.55%;对孢囊线虫病的防治效果高于35%多克福悬浮种衣剂。30%毒死蜱·多菌灵·福美双悬浮种衣剂3个处理大豆苗期根瘤数分别较对照增加31.58%、27.63%和51.32%;株高、根长和植株干重较对照有不同程度下降。
A 30% chlorpyrifos-carbendazim bi-levitation seed coating was used to test field pests and diseases of soybean seedlings. The results showed that the control effect of soybean seedling was 100%, 100% and 96.15% when the ratio of medicament to seed was 1:50, 1:70, 1:90, respectively. The control effect on root rot was 39.76%, 40% and 54.55%, respectively. The control effect on cyst nematode disease was higher than 35%. The number of root nodules increased by 31.58%, 27.63% and 51.32% respectively in the three treatments of 30% chlorpyrifos, carbendazim and thiram seed coating agent. The plant height, root length and plant dry weight decreased to some extent compared with the control .