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Mulching increases water-use efficiency of peach production on the rainfed semiarid Loess Plateau of China

文献类型： 外文期刊

作者： Wang, Hong 1 ; Wang, Chenbing 1 ; Zhao, Xiumei 1 ; Wang, Falin 1 ;

作者机构： 1.Gansu Acad Agr Sci, Inst Fruit & Floriculture Res, Lanzhou 730070, Peoples R China

2.Gansu Agr Univ, Hort Coll, Lanzhou 730070, Peoples R China

关键词： Sap flow;Soil water content;Soil temperature;Water-use efficiency;Yield

期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）

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收录情况： SCI

摘要： We examine the water-use balance, fruit yield and water-use efficiency of five-year-old peach trees with two different mulching systems: plastic film mulched ridge, with furrows (PFM) and straw mulched (SM). Compared with the clean tillage (CT) water management method, PFM increased, and SM significantly decreased, the soil temperature (P < 0.05). Both mulching systems increased the gravimetric soil water content (1.9-2.9%) with a reduction in the average annual evapotranspiration (ET) of 82.5 mm and 49.3 mm through SM and PFM, respectively. The water-use efficiency (WUE) was improved from 5.7 (CT) to 8.1 (PFM) and 9.0 kg m(-3) (SM), resulting in a reduction in ET and an increase in fruit yield from 25.2 (CT) to 32.2 (PFM) and 32.5 t ha(-1) (SM). Thus, both mulching systems could serve as models for peach production in semiarid rainfed areas, due to the high soil water content during bloom and fruit expansion. (C) 2015 Elsevier B.V. All rights reserved.

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