摘要
通过田间药效试验,比较了5种除草剂在紫云英田的适用性及其对阔叶杂草的防效。结果表明,紫云英田块春后化除使用56%2-甲-4-氯钠可湿性粉剂900 mL/hm^2和48%灭草松水剂2 700 m L/hm^2均未对紫云英产生药害,并可有效防除阔叶杂草,对阔叶杂草株防效及鲜重防效可达70%以上;与清水对照相比,紫云英鲜重分别提高47.92%、60.42%,紫云英结实量分别增加22.72%、31.82%。
The applicability of five herbicides in Astragalus sinicus field and their control effects on broadleaf grass were compared by field efficacy test.The results showed that the use of 56% 2-methyl 4-chlorosulphate WP 900 mL/hm2 and 48% chlorpyrifos 2 700 mL/hm2 in the chemical weeding in field after spring did not cause phytotoxicity to Astragalus sinicus,and could effectively control broadleaf weeds,the control effect and fresh weight control effect of broad-leaved grasses can reach more than 70%.Compared with the control,the fresh weight of Astragalus sinicus treated by 56% 2-methyl 4-chlorosulphate WP 900 mL/hm^2 and 48% chlorpyrifos 2 700 mL/hm^2 increased by 47.92% and 60.42%,respectively,and the fruiting volume increased by 22.72% and 31.82%,respectively.
作者
殷文格
王友好
丁勤之
董二甲
YIN Wen-ge;WANG You-hao;DING Qin-zhi;DONG Er-jia(Pujiwei Farm of Tongling City in Anhui Province,Tongling Anhui 244000)
出处
《现代农业科技》
2019年第9期78-79,82,共3页
Modern Agricultural Science and Technology
基金
国家重点研发计划项目(2017YFD0301304)
关键词
绿肥
紫云英
阔叶杂草
除草剂
防效
green manure
Astragalus sinicus
broadleaf grass
herbicide
control effect
