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1995～1997年于莱阳农学院农学系试验站在大田条件下选择2种耕作方式，种植玉米进行除草剂混用试验。结果表明：3种除草剂混剂在免耕复种玉米时均能一次使用有效地防治玉米全生育期的杂草危害，对玉米高度安全，除草剂处理后玉米的产量显著高于对照，与人工除草处理差异不显著，化学除草可代替人工除草；而旋耕后种植玉米时则导致除草效果下降。
From 1995 to 1997, two kinds of farming methods were selected under agronomic conditions in Laiyang Agricultural College Experimental Station of Agronomy. Corn was mixed with herbicide. The results showed that three kinds of herbicide mixture could effectively prevent and control weeds in corn during the whole growth period without any tillage and reforestation. It was highly safe to corn and the yield of corn after herbicide treatment was significantly higher than that of control Weeding treatment differences were not significant, chemical weeding instead of artificial weeding; and after turning the tillage planting corn will lead to weeding effect decreased.