| 王健,蔡焕杰,刘红英.免耕覆盖夏玉米耗水特性及土壤环境变化研究[J].干旱地区农业研究,2007,(2):35~39 |
| 免耕覆盖夏玉米耗水特性及土壤环境变化研究 |
| 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 |
| 中文关键词: 免耕覆盖 夏玉米 耗水特性 土壤环境 |
| 英文关键词:no-tillage with mulch summer maize water consumption characteristics soil environment |
| 基金项目:教育部青年教师奖资助项目(200139)； 西北农林科技大学拔尖人才项目(200508) |
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| 中文摘要: |
| 002～2003年在西北农林科技大学灌溉试验站夏玉米田进行了小麦秸秆不同覆盖量的大田试验。通过不同覆盖处理对夏玉米的耗水特性及土壤水热环境变化影响的研究,表明采用完全覆盖可使作物耗水减少27.6%、产量增加21.22%1、m土壤含水率提高37%,覆盖焚烧处理耗水量高于免耕覆盖10%～41%。另外,利用秸秆免耕覆盖比覆盖焚烧土壤的速效氮、速效磷、速效钾均有所提高。最后,从节约资源和改善环境污染的角度分析了秸秆覆盖对土壤环境的影响。 |
| 英文摘要: |
| 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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