Journal
AGRICULTURAL WATER MANAGEMENT
Volume 154, Issue -, Pages 20-28Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.agwat.2015.02.010
Keywords
Sap flow; Soil water content; Soil temperature; Water-use efficiency; Yield
Categories
Funding
- China National Natural Science Foundation [31160105]
- earmarked fund for China Agriculture Research System [CARS-31-Z-15]
- Laboratory of Horticultural Crops in Genetics and Breeding of P.R. China
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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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