| Water consumption characteristics and soil environment for summer corn under no-tillage with mulch |
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| DOI：10.7606/j.issn.1000-7601.2007.02.08 |
| Key Words: no-tillage with mulch summer maize water consumption characteristics soil environment |
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| Abstract: |
| Burned straw in farmland not only polluted environment but also wasted straw resource.Field experiment with different mulch quantity of wheat straw was conducted in irrigation experimental station of Northwest A & F University in 2002 and 2003.Effect of different mulch treatment on water consumption characteristics and soil environment for summer maize was studied.The result showed that straw mulch can totally reduce water consumption by 27.6%,maize yield increased by 21.22%,soil moisture in 1m layer increased by 37%,water consumption by burned straw increased by 10% to 41%.Moreover,no-tillage with mulch could increase the contents of N、P、K and organic of soil in comparison with burned straw.At last,the effect of straw mulch on soil environment was analyzed from viewpoint of saving resource and reducing environment pollution. |
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