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Review of interventions and technologies for sustainable intensification of smallholder crop production in sub-humid sub-Saharan Africa

with an assessment of effectiveness of selected options on differently endowed case study farms : a working paper

Dahlin, Sigrun and Rusinamhodzi, Leonard (2014). Review of interventions and technologies for sustainable intensification of smallholder crop production in sub-humid sub-Saharan Africa. Uppsala: (NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
, Sveriges lantbruksuniversitet. SLU-Global report ; 2014:5
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Abstract

Besides low soil fertility, climate variability has often been identified as the major constraint to agricultural productivity in Sub-Saharan Africa (SSA), with rainfall variability (both within and across seasons) being the most critical. Traditionally, reasonable yields could be achieved in spite of constant or smaller resource inputs by expanding the cropped area, but this is no longer a viable option. Crop production intensification is required to produce more food per unit of input and land, while maintaining or rebuilding soil fertility. However, most smallholder farmers lack access to resources such cash, fertiliser and technological expertise to address constraints caused by the biophysical environments in
which they operate. The objective of this review was to collate and appraise the range of crop production
intensification options that have been developed for smallholder farmers in SSA. A case study from central Mozambique was included to illustrate the impact and relevance of locally feasible options to farmers who own different resources. The study has revealed that sustainable intensification of crop production requires that multiple constraints are addressed simultaneously, in this case primarily soil fertility/plant nutrient supply and weed management. Success of crop intensification options will also depend on proper targeting to different farm types as well as field soil fertility gradients. Although smallholder farmers in SSA have limited assets, the case study revealed the occurrence of local opportunities to increase current crop productivity which in some cases do not need substantial capital inputs by the farmers, but more efficient use and targeting.

Authors/Creators:Dahlin, Sigrun and Rusinamhodzi, Leonard
Title:Review of interventions and technologies for sustainable intensification of smallholder crop production in sub-humid sub-Saharan Africa
Subtitle:with an assessment of effectiveness of selected options on differently endowed case study farms : a working paper
Series/Journal:SLU-Global report (BIB17589048)
Year of publishing :2014
Depositing date:11 February 2015
Number:2014:5
Number of Pages:61
Place of Publication:Uppsala
Publisher:SLU Global, Swedish University of Agricultural Sciences
Associated Programs and Other Stakeholders:SLU - Agricultural Sciences for Global Development > Efficiency in farming systems
ISBN for electronic version:978-91-576-9241-2
Language:English
Publication Type:Report
Full Text Status:Public
Agris subject categories.:F Plant production > F04 Fertilizing
F Plant production > F08 Cropping patterns and systems
P Natural resources > P30 Soil science and management
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Agrovoc terms:plant production, farm management, farmers, smallholders, soil fertility
Keywords:AfricaNUANCES, crop production intensification, farm management, farm typology, scenarios, smallholder farmers, soil fertility
URN:NBN:urn:nbn:se:slu:epsilon-e-2463
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2463
ID Code:11876
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
External funders:Utrikesdepartementet
Deposited By: Malin Planting
Deposited On:25 Feb 2015 16:09
Metadata Last Modified:27 Feb 2015 11:14

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