摘要
在１９９０年和１９９２年田间试验基础上，提出了旱地玉米免耕整秸秆覆盖田适用的、经济有效的化学除草技术，除草效果达９８％以上，比人工除草提高９个百分点，每亩除草成本降低７．７～９．３元，除草经济效益提高４６．５％～４８．１％。
Based on the 2-year experimental resuals, this paper puts forward a practical, effective and profitable technique to control weeds with herbcides for dryland corn cultivated with no tillage and stalk mulch. Experimental results show that the effect of controlling weeds is over 98%, increased 9 percent point, reduce cost by 7. 7～9. 3 yuan per mu and the economic effects of controlling weeds increase 46. 5 %～48. 1 % compared to controlling weeds by hands.
出处
《山西农业科学》
1994年第3期34-36,共3页
Journal of Shanxi Agricultural Sciences
关键词
旱地
玉米
免耕
化学除草
秸秆还田
Dryland corn
No-tillage
Stalk mulch
Control of weeds with herbicides
