Effects of plastic film mulching of millet on soil moisture and temperature in semi-arid areas in South Ningxia of China.

Book Title: NA
Year Published: 2005
Month Published: NA
Author: Liao, YunCheng ; Zhang, DeQi ; Jia, ZhiKuan ; Zhang, Li ; Lu, YangMing
Book Group Author: NA
Abstract:

This study was conducted to determine the effects of plastic film mulching of millet on soil moisture and temperature in semiarid area on the Loess Plataeu of South Ningxia, China, during millet growth period of 2003-04. Different mulching methods including water micro-collecting farming (WF), water micro-collecting farming in winter fallow (WW), hole seeding on film (HF), hole seeding on film in winter fallow (HW), were compared. Also, the variation of water content after rainfall, yield of millet and water use efficiency (WUE) were examined. Results showed that WF had a better function of collecting water after rainfall, site infiltrated water was stored under the ridges, and the soil water changes in the top layer 0-40 cm were high. WF had obvious role in water collection and preservation of soil moisture. It effectively improved the water supply capacity by approximately 19.05% in the end of growth seasons. The storage of HW and WW increased by 24.9 and 7.1 mm compared with CK, and yield were also increased. For HW treatments in winter-free-field, soil moisture was stored under film before sowing, it favours spring sowing and emergence, while WW has limited effect on soil moisture conservation because rainfall is sparse in winter. During different growth periods, WF exhibited better water storage function with lower water consumption, and demonstrated optimal social and ecological benefits. HF increased soil temperature during seedling stage of millet, thus, promoted seedling growth. It is suggested that film mulching increased yield of millet and enhanced WUE.

Pages: 865 - 871
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20053209366&site=ehost-live
Volume: 4
Number: 11
Journal: Agricultural Sciences in China
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 1671-2927
DOI: NA
Keywords:

crop yield, infiltration, millets, mulches, mulching, plantwater relations, plastic film, rain, semiarid soils, semiarid zones,soil temperature, soil types, soil water, water use efficiency, China,Ningxia, East Asia, Asia, Developing Countries, North Western China,China, Field Crops (FF005) (New March 2000), Plant Water Relations(FF062), Plant Production (FF100), Soil Physics (JJ300), Soil Management(JJ900), Meteorology and Climate (PP500)

Source: EBSCO
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