Environmental and economic benefits of micro-field rain-harvesting farming system at maize (Zea mays L.) field scale in semiarid east African Plateau

doi:10.1016/j.agwat.2018.05.002

	Environmental and economic benefits of micro-field rain-harvesting farming system at maize (Zea mays L.) field scale in semiarid east African Plateau
	Mo, Fei ; Wang, Jian-Yong ; Ren, Hong-Xu ; Sun, Guo-Jun ; Kavagi, Levis 2; Zhou, Hong ; Nguluu, Simon N.; Gicheru, Patrick 3; Cheruiyot, Kiprotich W.; Xiong, You-Cai
	2018
发表期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
卷号	206 页码:102-112
摘要	To explore low-cost, high-yielding and environment-friendly rainfed farming technology is critical for sustainable agricultural development in semiarid east African Plateau (EAP). An innovative ridge-furrow mulching system (RFMS) was first introduced to EAP, with a two-year field experiment using maize cultivar KDVI in a typical semiarid site of Kenya from 2012 to 2013. Nine treatments were designed including ridge-furrow cultivation with black plastic mulching (RFB), straw mulching (RFS) and without mulching (RF) under high (375 kg ha(-1)), conventional (225 kg ha(-1)) and zero fertilization rates. We found RFB and RFS significantly increased soil water storage (0-40 cm) by 10.2% and 4.8%, while lowered evapotranspiration rate and improved thermal status, compared to RF across two growing seasons. Importantly, RFB and RFS increased soil organic carbon and C/N ratio (soil organic carbon/soil total nitrogen) by 7.8% and 4.9%, 7.2% and 5.1% respectively, following two growing seasons of farming practice. As expected, grain yield and water use efficiency (WUE) were averagely increased by 63.3% and 63.8%, 27.5% and 35.9% in RFB and RFS than those of RF respectively. Additionally, net income and economic output-to-input ratio were significantly greater in RFB and RFS than those of RF. On the other hand, conventional fertilization rate achieved similar grain yield and WUE as high fertilization did. Considering environmental and economic benefits, the RFMS farming system with conventional fertilization may act as a promising option to upgrade local dryland agricultural system in EAP.
关键词	Rainfed farming Soil quality Economic benefit Maize east African Plateau
学科领域	Agronomy ; Water Resources
DOI	10.1016/j.agwat.2018.05.002
收录类别	SCI
语种	英语
WOS关键词	SUB-SAHARAN AFRICA ; WATER-USE EFFICIENCY ; SOIL-EROSION ; RIDGE-FURROW ; CROP PRODUCTIVITY ; CLIMATE-CHANGE ; FOOD SECURITY ; CONSERVATION ; CHINA ; YIELD
WOS记录号	WOS:000438659700012
出版者	ELSEVIER SCIENCE BV
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-2283
资助机构	International Cooperation Program of Ministry of Science and Technology of China [2015DFG31840, 2014DFG32090] ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570415] ; State Technology Support Program [2015BAD22B04] ; Fundamental Research Funds for the Central Universities of ChinaFundamental Research Funds for the Central Universities [lzujb-ky-2015-br02] ; Overseas Masters Program of Ministry of Education [Ms2011LZDX059]
作者邮箱	xiongyc@lzu.edu.cn
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20732
专题	中科院北方资源植物重点实验室
作者单位	1.Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 3.United Nations Environm Programme, POB 47074-00100, Nairobi, Kenya 4.Kenya Agr & Livestock Res Org, Nairobi 1473300800, Kenya
推荐引用方式 GB/T 7714	Mo, Fei,Wang, Jian-Yong,Ren, Hong-Xu,et al. Environmental and economic benefits of micro-field rain-harvesting farming system at maize (Zea mays L.) field scale in semiarid east African Plateau[J]. AGRICULTURAL WATER MANAGEMENT,2018,206:102-112.
APA	Mo, Fei.,Wang, Jian-Yong.,Ren, Hong-Xu.,Sun, Guo-Jun.,Kavagi, Levis.,...&Xiong, You-Cai.(2018).Environmental and economic benefits of micro-field rain-harvesting farming system at maize (Zea mays L.) field scale in semiarid east African Plateau.AGRICULTURAL WATER MANAGEMENT,206,102-112.
MLA	Mo, Fei,et al."Environmental and economic benefits of micro-field rain-harvesting farming system at maize (Zea mays L.) field scale in semiarid east African Plateau".AGRICULTURAL WATER MANAGEMENT 206(2018):102-112.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
1-s2.0-S037837741830（2476KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文