| 滴灌与沟灌马铃薯覆膜效应研究 |
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| 引用本文： | 王凤新,康跃虎,刘士平.滴灌与沟灌马铃薯覆膜效应研究[J].中国生态农业学报,2003,11(4):99-102. |
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| 作者姓名： | 王凤新 康跃虎 刘士平 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家杰出青年科学基金项目( 40 1 2 50 0 2)，国家自然科学基金项目 ( 40 0 71 0 2 0 )共同资助 |
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| 摘 要： | 田间对照试验研究薄膜覆盖对滴灌土壤水分分布与消散过程及滴灌和沟灌马铃薯生长的影响结果表明 ,马铃薯生长前期覆膜能明显减少表层土壤蒸发 ,并使表层土壤维持较高的含水量。马铃薯生长中后期蒸腾作用占主导地位 ,覆膜对减少表层土壤蒸发作用较小。气温较高时覆膜对马铃薯生长产生明显抑制作用
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| 关 键 词： | 马铃薯 滴灌 沟灌 薄膜覆盖 土壤水分分布 |
| 收稿时间： | 2002/11/19 0:00:00 |
| 修稿时间： | 2002/12/20 0:00:00 |
Plastic mulching effects on potato under drip irrigation and furrow irrigation |
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| WANG Feng-Xin,KANG Yao-Hu and LIU
Shi-Ping.Plastic mulching effects on potato under drip irrigation and furrow irrigation[J].Chinese Journal of Eco-Agriculture,2003,11(4):99-102. |
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| Authors: | WANG Feng-Xin KANG Yao-Hu and LIU
Shi-Ping |
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| Abstract: | Based on field experiment, this paper gives a brief in tr oduction of the mulching effects on soil water distribution and depletion under drip irrigation, the growth of potato under drip irrigation and furrow irrigatio n, etc. The results show that the plastic mulch can reduce the evaporation throu gh soil surface and maintain relatively high soil moisture in the topsoil during the early growing period of potato. However,transpiration has become the main w ay of soil water depletion during the later period and makes the mulching effect on the reduction of evaporation insignificant. When the temperature is high, th e plastic mulch can restrain the growth of potato. |
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| Keywords: | Potato Drip irrigation Furrow irrigation Plastic mul ch Soil water distribution |
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