气候变化领域集成服务门户(CCPortal): The effects of contour-based rainwater harvesting and integrated nutrient management on maize yields in semi-arid regions of Zimbabwe

CCPortal

DOI	10.1186/s43170-024-00233-2
	The effects of contour-based rainwater harvesting and integrated nutrient management on maize yields in semi-arid regions of Zimbabwe
	Chiturike, Pasipanodya; Gotosa, Jephta; Nyakudya, Innocent Wadzanai; Madamombe, Sandra M.; Mandumbu, Ronald; Chirinda, Ngonidzashe; Kugedera, Andrew Tapiwa; Nyamadzawo, George
发表日期	2024
EISSN	2662-4044
起始页码	5
结束页码	1
卷号	5 期号:1
英文摘要	In the smallholder farming areas located in semi-arid regions of Zimbabwe, low and unreliable rainfall distribution and poor soil fertility are the major factors limiting crop production. The negative effects of these biophysical factors have been worsened by climate change. However, the major challenges have been the lack of sustainable, low-cost water and nutrient management technologies for these semi-arid regions. The objectives of this study were to evaluate the effects of contour-based rainwater harvesting (RWH) namely tied contours (TC), infiltration pits (IP) which were compared with the standard contour (STDC), and intergrated nutrient management (INM) where cattle manure was used as basal fertiliser and Ammonium Nitrate (AN) as top dressing, on maize yields. Results showed that fields with RWH had higher yields compared to STDC. Average maize yields were 2210 and 1792 kg ha-1 for TC and IP which were 88% and 52% above STDC (1176 kg ha-1) respectively. Increasing nitrogen (N) levels resulted in a further increase in maize yields. Return on investment was negative during drier years and was significantly higher in RWH systems compared with STDC during wet seasons. Farmers need to reduce mineral fertiliser application during dry seasons since little rainwater is captured. We conclude that contour based RWH and INM can be used as sustainable low cost methods of crop production. Higher fertiliser application rates when rainfall is limiting, do not result in increased return on investiment.
英文关键词	Integrated nutrient management; Rainwater harvesting; Semi-arid; Maize; Sandy soils; Climate change
语种	英语
WOS研究方向	Agriculture
WOS类目	Agriculture, Multidisciplinary
WOS记录号	WOS:001211002800001
来源期刊	CABI AGRICULTURE & BIOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289257
作者单位	Swedish University of Agricultural Sciences; Mohammed VI Polytechnic University
推荐引用方式 GB/T 7714	Chiturike, Pasipanodya,Gotosa, Jephta,Nyakudya, Innocent Wadzanai,et al. The effects of contour-based rainwater harvesting and integrated nutrient management on maize yields in semi-arid regions of Zimbabwe[J],2024,5(1).
APA	Chiturike, Pasipanodya.,Gotosa, Jephta.,Nyakudya, Innocent Wadzanai.,Madamombe, Sandra M..,Mandumbu, Ronald.,...&Nyamadzawo, George.(2024).The effects of contour-based rainwater harvesting and integrated nutrient management on maize yields in semi-arid regions of Zimbabwe.CABI AGRICULTURE & BIOSCIENCE,5(1).
MLA	Chiturike, Pasipanodya,et al."The effects of contour-based rainwater harvesting and integrated nutrient management on maize yields in semi-arid regions of Zimbabwe".CABI AGRICULTURE & BIOSCIENCE 5.1(2024).