摘要
为了明确11种除草剂对全膜双垄沟播玉米田杂草的防治效果,采用随机区组法开展了田间小区药效试验。结果表明:42%甲·乙·莠悬浮剂5625 mL/hm2、48%乙·莠可湿性粉剂3.75 kg/hm2和42%异丙草·莠悬浮剂4 125 mL/hm2对全膜双垄沟播玉米田杂草有较好的防效,其中,30 d和45 d的株防效分别为92.9%、91.3%、92.3%和89.0%、88.0%、88.3%,45 d的鲜重防效分别为89.1%、88.2%、88.6%,显著优于其他药剂处理(P<0.05)。同时,3种药剂处理玉米出苗整齐、生长良好、安全无药害发生,且分别比对照增产24.19%、22.04%、20.43%。
The efficacy of eleven herbicides was determined under whole film and double furrow sowing in corn in a field experiment established as a randomized block design.Best weed control was obtained with alachlor o acetochlor o atrazine (42% SC,5 625 mL/hm2),acetochlor o atrazine (48% WP,3.75 kg/hm2) and propisochlor o atrazine (42% SC,4 125 mL/hm2).At 45 d and 30 d after application they provided control at levels of 93%,91%,92% and 89%,88%,88% respectively.Control at 45 d based on fresh weight was 89%,88% and 89% respectively,being significantly better than other treatments.Additionally,these three treatments were selective and seedlings grew normally without any indication of phytotoxicity and yields increased by 24%,22% and 20%,respectively,compared to the control treatment.
出处
《杂草科学》
2013年第3期26-31,共6页
Weed Science
基金
甘肃省科技支撑计划(编号:1011NKCA065)
关键词
除草剂
玉米
杂草防治
全膜
双垄沟播
herbicide
corn
weed control
whole film
double furrow sowing