Exploring micro-field water-harvesting farming system in dryland wheat (Triticum aestivum L.): An innovative management for semiarid Kenya

doi:10.1016/j.fcr.2016.07.001

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	Exploring micro-field water-harvesting farming system in dryland wheat (Triticum aestivum L.): An innovative management for semiarid Kenya
	Wang, Jian-Yong ; Mo, Fei ; Nguluu, Simon N.; Zhou, Hong ; Ren, Hong-Xu ; Zhang, Jian ; Kariuki, Charles W.; Gicheru, Patric 4; Kavaji, Levis 1; Xiong, You-Cai
刊名	FIELD CROPS RESEARCH
	2016
卷号	196 页码:207-218
关键词	Micro-field rain-harvesting farming system Productivity Profitability Dryland wheat Semiarid Kenya
ISSN号	0378-4290
DOI	10.1016/j.fcr.2016.07.001
文献子类	Article
英文摘要	Micro-field rain-harvesting farming system (MRFS) has demonstrated great potentials to enhance field productivity and profitability of dryland wheat (Triticum aestivum L) in semiarid eastern Asia, yet little is known whether this system results in desired effects in semiarid Africa such as Kenya. A two-year field experiment was conducted during 2012 and 2013 growing seasons to evaluate the effects of introduced MRFS on water availability, field productivity and economic benefits using a local wheat (T. aestivum L) cultivar DUMA in a semiarid site of Kenya. Five treatments were designed as: 1) ridge and furrow with transparent plastic mulching (RFT); 2) ridge and furrow with black plastic mulching (RFB); 3) ridge and furrow with grass straw mulching (RFS); 4) ridge and furrow without mulching (RF); and 5) traditional flat planting (CK). The results showed that mulching treatments (RFT, RFB and RFS) significantly decreased the evapotranspiration (ET) by 11.4-88.5 mm, increased wheat grain yield by 60%-163%, above-ground biomass by 58%-104% and water use efficiency for grain by 68%-271%, compared with CK over two growing seasons. RFT and RFB treatments resulted in maximal soil water storage at 1-m depth and the greatest harvest index among all treatments. Linkage analyses indicated that grain yield showed significantly positive correlation with plant height, leaf area and major spike components (P <= 0.05), suggesting that plant type of wheat was altered for better yield production as a result of MRFS operation. More importantly, economic ratios of output to input were also calculated and compared. The average ratio of output to input for CK was 3.86, slightly lower than 4.28, 4.06, 5.86 and 5.34 for RFT, RFB, RFS and RF, respectively across two growing seasons. In particular, net incomes in MRFS (RFT, RFB, RFS and RF) were increased by 145%, 128%, 117% and 82% respectively, compared with that of CK. In conclusion, on-field rain-harvesting farming system provides an innovative management to boost the productivity and profitability of dryland wheat, and a potential solution to cope with food security in semiarid Kenya. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	Agronomy
电子版国际标准刊号	1872-6852
出版地	AMSTERDAM
WOS关键词	PLASTIC-COVERED RIDGE ; ZEA-MAYS-L ; CLIMATE-CHANGE ; CONSERVATION AGRICULTURE ; SOIL-TEMPERATURE ; CROP MANAGEMENT ; USE EFFICIENCY ; LOESS PLATEAU ; SPRING WHEAT ; GRAIN-YIELD
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000384777000019
资助机构	International Cooperation Program of Ministry of Science and Technology of China [2015DFG31840, 2014DFG32090] ; State Technology Support Program [2015BAD22804] ; Fundamental Research Funds for the Central Universities of ChinaFundamental Research Funds for the Central Universities [lzujbky-2015-br02] ; Overseas Masters Program of Ministry of Education [Ms2011LZDX059]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24944]
专题	中科院北方资源植物重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 2.Kenya Agr & Livestock Res Org, Nairobi 1473300800, Kenya 3.United Nations Environm Programme, POB 47074-00100, Nairobi, Kenya 4.Lanzhou Univ, Inst Arid Agroecol, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jian-Yong,Mo, Fei,Nguluu, Simon N.,et al. Exploring micro-field water-harvesting farming system in dryland wheat (Triticum aestivum L.): An innovative management for semiarid Kenya[J]. FIELD CROPS RESEARCH,2016,196:207-218.
APA	Wang, Jian-Yong.,Mo, Fei.,Nguluu, Simon N..,Zhou, Hong.,Ren, Hong-Xu.,...&Li, Feng-Min.(2016).Exploring micro-field water-harvesting farming system in dryland wheat (Triticum aestivum L.): An innovative management for semiarid Kenya.FIELD CROPS RESEARCH,196,207-218.
MLA	Wang, Jian-Yong,et al."Exploring micro-field water-harvesting farming system in dryland wheat (Triticum aestivum L.): An innovative management for semiarid Kenya".FIELD CROPS RESEARCH 196(2016):207-218.