摘要
为筛选出紫薇圃地内除草效果好、性价比高的除草剂,选用使它隆、锐超麦、施田补、草铵膦、甲基二磺隆、草甘膦等6种药剂配制13个不同的处理对圃地内的杂草进行防除研究。施药后15、24、30d,观察紫薇苗木和杂草的生长状态,计算其枯叶指数、株防效、鲜质量防效以及性价比等。结果表明,13个药剂处理对紫薇苗木都有较高的安全性。160g/hm^2使它隆+600g/hm^2草甘膦、100g/hm^2锐超麦、80g/hm^2锐超麦+600g/hm^2草甘膦、800g/hm^2草铵膦和1200g/hm^2草铵膦对阔叶杂草的株防效和鲜质量防效较为突出,800g/hm^2草铵膦、1200g/hm^2草铵膦、480g/hm^2施田补+600g/hm^2草甘膦、10.8g/hm^2甲基二磺隆+600g/hm^2草甘膦对禾本科杂草的株防效和鲜质量防效较佳,可交替用于圃地内相应杂草的防除。其中,100g/hm^2锐超麦、80g/hm^2锐超麦+600g/hm^2草甘膦、800g/hm^2草铵膦对阔叶杂草的防除性价比较高,分别为64.52%、59.99%、83.06%,800g/hm^2草铵膦、480g/hm^2施田补+600g/hm^2草甘膦对禾本科杂草的防除性价比较高,分别为78.83%、70.52%,可进一步推广使用。
In order to screen out the herbicides with good herbicidal effect and high cost performance in the nursery of Lagerstroemia indica L.,13 treatments were designed to control weeds with 6 kinds of herbicides,including fluroxypyr,quelex,pendimethalin,glufosinate,mesosulfuron and glyphosate.At 15,24 and 30 days after application of herbicides,the growth status of seedlings and weeds was observed,and the withered leaf index,control efficacy in plant number,fresh weight,and cost performance were calculated.The results showed that 13 treatments had a high safety to the seedlings of Lagerstroemia indca L..Among them,160 g/ha quelex+600 g/ha glyphosate,100 g/ha quelex,80 g/ha quelex+600 g/ha glyphosate,800 g/ha glufosinate and 1 200 g/ha glufosinate had significant control effects on plant number and fresh weight of broadleaves grass,and 800 g/ha glufosinate,1 200 g/ha glufosinate,480 g/ha pendimethalin+600 g/ha glyphosate,10.8 g/ha mesosulfuron+600 g/ha glyphosate had significant control effects on plant number and fresh weight of gramineous grass, which could be used for weed control alternately. Among the five treatments,100 g/ha quelex,80 g/ha quelex+600 g/ha glyphosate,800 g/ha glufosinate had a high cost performance in broadleaves weed control,which were 64.52%,59.99%,83.06% respectively.Among the four treatments,800 g/ha glufosinate,480 g/ha pendimethalin+600 g/ha glyphosate had a high cost performance in gramineous grass control,which were 78.83%,70.52% respectively.These treatments could be further promoted.
作者
胡慧中
丁晓平
刘建军
王诚吉
HU Huizhong;DING Xiaoping;LIU Jianjun;WANG Chengji(College of Landscape Architecture,Northwest Agriculture and Forestry University,Yangling 712100,China;Forestry Technical Service Station of Tingpang Town,Sanmen County,Taizhou City,Sanmen 317103,China)
出处
《河南农业科学》
北大核心
2019年第6期87-94,共8页
Journal of Henan Agricultural Sciences
基金
亚洲开发银行资助项目(K3170219001)
关键词
紫薇
圃地
阔叶杂草
禾本科杂草
除草剂
杂草防除
Lagerstroemia indica L.
Nursery
Broadleaves grass
Gramineous grass
Herbicides
Weed control
