期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep20994
关键词
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资金
- Science and Technology Support Plan of the People's Republic of China [2006BAD29B03, 2011BAD29B09, 2015BAD22B03, 2014BAD07B05]
- Special Fund for Agro-scientific Research in the Public Interest [201501024]
- programs of Shaanxi Province [20140311005-4, 2011NXC01-16]
- Doctor Foundation of Shanxi Academy of Agricultural Sciences [YBSJJ1508]
- Agricultural Scientific Research Talents and Their Innovative Team
- Science and Technology Innovative Team of Shanxi Province [2012091022]
- Integration and Demonstration of Key Technology in Shanxi Model Base of Modern Dry Farming and Water Saving Agriculture [20120311007]
- Technical Attack Project of Shanxi Academy of Agricultural Sciences [YGG1109]
- Youth Fund for Shanxi Province
Because of inadequate nutrient and water supply, soils are often unproductive in Northwest China. We studied the effects of manure application at low (LM 7.5 t ha(-1)), medium (MM 15 t ha(-1)), and high (HM 22.5 t ha(-1)) rates combined with fixed levels of chemical fertilizers on maize growth and rainfall use efficiency compared with chemical fertilizers (CK) under semi-arid conditions over a three-year period. HM and MM treatments could significantly increase soil water storage (0-120 cm) at tasseling stage of maize compared with LM treatment and CK (P < 0.05). Dry matter accumulation and rainfall use efficiency increased as manure application rate increasing (P < 0.05). HM treatment significantly increased rainfall use efficiency by 6.5-12.7% at big trumpeting - tasseling stage compared with LM and MM treatments. HM and MM treatments increased rainfall use efficiency by 8.6-18.1% at tasseling grain filling stage compared with CK. There was no significant difference on biomass between HM and MM treatments at grain filling and maturity stages of maize in 2009 and 2010.
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