| Effect of different plastic-film mulching in the whole growth period on soil moisture and water use efficiency of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2011.02.05 |
| Key Words: dryland plastic-flm mulching winter wheat crop yield water use efficiency |
| Author Name | Affiliation | | YANG Haidi | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China | | HAI Jiangbo | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China | | JIA Zhikuan | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
Research Center of Agriculture in the Arid and Semiarid Areas, Northwest A & F Univerity, Yangling, Shaanxi 712100, China | | HAN Qingfang | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
Research Center of Agriculture in the Arid and Semiarid Areas, Northwest A & F Univerity, Yangling, Shaanxi 712100, China | | ZHANG Baojun | College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China | | REN Shichun | Research Center of Agriculture in the Arid and Semiarid Areas, Northwest A & F Univerity, Yangling, Shaanxi 712100, China |
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| Abstract: |
| With the purpose of investigating the dynamic effects of different kinds of plastic-film mulching on soil
moisture and water use efficiency of winter wheat, plastic flm，biodegradable film and liquid film were selected to con-duct a locating experiment of rainfall harvesting in the whole growth period in Weibei dryland of Shaanxi. The results in-dicated that plastic-film mulching can increase the soil moisture，crop yield and water use efficiency, and it can also im-
prove soil water storage. Treated with plastic film and biodegradable film covering, the moisture storage of 0~ 200 cm soil increased during full period of experiment , which showed a significant difference (P<0.05) compared with the liq-
uid film covering treatment and no covering treatment (CK); treated with plastic film and biodegradable film covering can observably increase the soil miosture, but the effect of liquid film is instable; besides, treated with plastic flm and biodegradable film covering, the crop yield of winter wheat increased respectively by 38 .01 % and 36 .28 % , and mean-while，the water use efficiency increased by 19 .85% and 16.85%(P< 0.05). Therefore , plastic film utilization can improve crop yield and increase water storage. |
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