摘要
使用乙氧呋草黄,甜安宁及二氯吡啶酸等除草剂在免耕直播甜菜田苗前及苗后进行除阔叶除草方面处理,试验表明：直播免耕田甜菜杂草防除有两个关键时期,即播后苗前时期和杂草2-4片叶时期.从播后苗前第一次喷施开始,经过5次喷施,可以实现较理想的除草效果.播后苗前喷施乙氧呋草黄进行苗前处理;在甜菜苗期,杂草2-4片叶时乙氧呋草黄与甜菜安宁、甲酯化植物油配合使用可以达到较好的防除效果.
Spray ethofumesate、Desmedipham ＆ phenmedipham、clopyrailid to control Broad-leaved weeds Pre -emergency and post-emergency without plough all of the sugar beet child-bearing period.The result：There were two key period to control Broad-leaved weed：Pre-emergency and Post-emergency while the Broad-leaved weeds have 2-4 true leaves.Spray the chemical five time from Pre-emergency to Post emergency,Control Broad-leaved weeds very well.Spray ethofumesate while Pre-ergency ＆ spray ethofumesate、Desmedipham ＆ phenmedipham、while Post-emergency cooperate with Methylated vegetable oil could control Broad-leaved weed very well.
出处
《中国甜菜糖业》
2014年第1期39-42,共4页
China Beet & Sugar
关键词
甜菜
乙氧呋草黄
阔叶草
防效
Sugar beet
ethofumesate
Broad-leaved weeds
result of weeds control
