LIU Yi.Study of the Effects of Limited Water Supply on Corn Covered With Membrane on Dryland[J].Research of Soil and Water Conservation,2003,10(01):101-103.
旱地地膜玉米有限供水效应研究
- Title:
- Study of the Effects of Limited Water Supply on Corn Covered With Membrane on Dryland
- Keywords:
- dryland; corn covered with membrane; limited water supply
- 分类号:
- S513.071
- 摘要:
- 有限水分在玉米关键时期供给具有明显的增产和水分利用效应。研究结果表明，随着供水量增加，玉米产量和水分利用效率增加，有限供水效应大小依次为大喇叭口期>拔节期>播前>苗期，对应的供水效率为106.6，93.3，90.3，74.2kg/（mm·hm2）.同时，考虑到集雨储水的有限性，少量水分应优先保证抗旱播种保苗，其次是关键生育期的有限供给。
- Abstract:
- Supplying corn with limited water in critical stages has obviously effects on increasing yield and application of water.The result showed that the yield of corn and utilization ratio increased with the increasing amount of water supply.The sequence of limited water supply effects were:dalaba stage jointing stagefront sowingseedling stage, with the efficiency of 106.6, 93.3, 90.3, 74.2 kg/(mm·hm2).At the same time, considering the limitation of stored water in rain gathered, when there is a little water, the first is anti drought sowing and protecting the seedling, then the limited supply in the growing stage.
参考文献/References:
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[2] 马天恩, 高世铭.集水高效农业[M].兰州:甘肃科学技术出版社, 1997.
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备注/Memo
收稿日期:2002-11-25
基金项目:国家科技攻关（2001BA508B18）
作者简介:刘一（1972- ），男，甘肃西峰人，助理研究员，主要从事旱地土壤水肥研究工作。