气候变化领域集成服务门户(CCPortal): How is organic farming performing agronomically and economically in sub-Saharan Africa?

CCPortal

DOI	10.1016/j.gloenvcha.2021.102325
	How is organic farming performing agronomically and economically in sub-Saharan Africa?
	Schader C.; Heidenreich A.; Kadzere I.; Egyir I.; Muriuki A.; Bandanaa J.; Clottey J.; Ndungu J.; Grovermann C.; Lazzarini G.; Blockeel J.; Borgemeister C.; Muller A.; Kabi F.; Fiaboe K.; Adamtey N.; Huber B.; Niggli U.; Stolze M.
发表日期	2021
ISSN	0959-3780
卷号	70
英文摘要	The potential of organic agriculture and agroecological approaches for improving food security in Africa is a controversial topic in global discussions. While there is a number of meta-analyses on the environmental, agronomic and financial performance of organic farming, most of the underlying data stems from on-station field trials from temperate regions. Data from sub-Sahara Africa in particular, as well as detailed real-farm data is scarce. How organic farming is implemented in sub-Saharan Africa and how it performs in a smallholder context remains poorly understood. We applied a novel observational two-factorial research design, which allowed to evaluate the impacts of i) interventions for introducing organic agriculture and ii) specific organic management practices on 1,645 farms from five case studies in Ghana and Kenya, which we closely monitored for 24 months. Among the farmers who have been exposed to the interventions, we found heterogeneous adoption of organic agriculture principles, depending on the intervention. Furthermore, we found rather passive than active organic management among farmers. Most yields and gross margins under organic management remained at similar levels as the conventional values in four of the case studies. In one case study, however, coffee, maize and macadamia nut yields increased by 127–308% and farm-level gross margins over all analysed crops by 292%. Pooling our data across all case studies, we found significantly higher (+144%) farm-level gross margins on organically managed farms than on conventional farms. This indicates the potential of organic and agroecological approaches if implemented well. Based on our observations, we argue for improving the implementation of organic agriculture projects in settings with smallholder farmers. Limited capacities, lack of appropriate inputs and market access are major agronomic and institutional challenges to be addressed. Furthermore, we argue for supporting a differentiated debate about which types of organic farming are really desirable by classifying approaches to organic farming according to i) their intention to work organically and ii) the degree of following the organic principles. This will support the design and implementation of targeted policy interventions for stimulating sustainability of farming systems and rural development. © 2021 The Authors
关键词	Agroecology Impact assessment Productivity Profitability Smallholder farmer
语种	英语
scopus关键词	agricultural management; agroecology; alternative agriculture; organic farming; rural development; spatiotemporal analysis; Ghana; Kenya; Sub-Saharan Africa; Macadamia
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249585
作者单位	Research Institute of Organic Agriculture (FiBL), Frick, Switzerland; University of Ghana, Department of Agriculture Economic and Agribusiness Legon, Accra, Ghana; Kenya Agricultural & Livestock Research Organization (KALRO), Kenya; University of Bonn, Center for Development Research (ZEF), Germany; Swiss Federal Institute of Technology Zurich (ETHZ), Institute for Environmental Decisions IED, Department of Environmental Systems Science D-USYS, Switzerland; Makerere University, Department of Agricultural Production, Kampala, Uganda; International Centre of Insect Physiology and Ecology (icipe), Nairobi, P.O. Box 30772-00100, Kenya; International Institute of Tropical Agriculture (IITA), Yaoundé, Cameroon; University of Ghana, Institute for Environment and Sanitation Studies, Legon, Accra, Ghana
推荐引用方式 GB/T 7714	Schader C.,Heidenreich A.,Kadzere I.,et al. How is organic farming performing agronomically and economically in sub-Saharan Africa?[J],2021,70.
APA	Schader C..,Heidenreich A..,Kadzere I..,Egyir I..,Muriuki A..,...&Stolze M..(2021).How is organic farming performing agronomically and economically in sub-Saharan Africa?.Global Environmental Change,70.
MLA	Schader C.,et al."How is organic farming performing agronomically and economically in sub-Saharan Africa?".Global Environmental Change 70(2021).