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《Journal of Anhui Agricultural Sciences》 2006-13
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Study on Application Effect of Three Kinds of Herbicides Mixed with Urea

CHEN Jun et al (Henan Institute of Science and Technology,Xinxiang,Henan 453003)  
The application effect of three herbicides(butachlor,metolachlor and acetochlor) mixed with urea on the fertilizer efficiency,the utilization ratio of urea,the security and rice yield was studied through plotted experiment and small areas as well as laboratory analysis,respectively.The result showed that three kinds of herbicides combined with urea in the plotted experiment might be excellent for the weeds control.During the rice-growing period,the total weed-killing percentage was stable over 85% and 90% in fresh weight.The mixtures could inhibit above-growth in seedling stage and stimulate rice growth during adult addition;all agricultural properties of the rice were higher obviously while reaping and the rice yield was increased to 13.9%,11.4% and 10.5%,separately.The utilization ratio of urea was increased to 3.2%,6.2% and 2.2%.Further more the herbicides mixed with urea delayed the release time of urea in soil and the residual effects period of herbicides was more than 50 days.
【Fund】: 河南科技学院重点科研项目资助基金(040120)
【CateGory Index】: S451.21
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