Ef fect of Wheat Straw Mulching on Herbicide Reduction in Zero-till Summer Corn

doi:10.3321/j.issn:1000-7091.2003.z1.028

Abstract

Abstract: Effect of wheat st raw mulching on herbicide rate reduction in zero-til summer corn was studiedfrom 1997-2001value Wheat straw mulching before corn emergence played a very important role in w eed control incorn fieldvalue Weed density was reduced by 49value1%-96value1% in the wheat st raw mulching plots of 4 500-7 500kg/ ha comparing with the unmulched treatment svalue The dosage of post-apply ing herbicide,nicosulfuron andat razine with acetochlor,could be reduced by 25% in these mulched plotsvalue Wheat st raw also reduced corn y ieldif mulched with 7 500 kg/ havalue

Key words: Wheat straw, Herbicide reduction, Corn, Weed cont rol

CLC Number:

S513??

LI Xiang-ju, WANG Gui-qi, LI Bing-hua, Blackshaw R E. Ef fect of Wheat Straw Mulching on Herbicide Reduction in Zero-till Summer Corn[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3321/j.issn:1000-7091.2003.z1.028.

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http://www.hbnxb.net/EN/Y2003/V18/IS1/99

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