Skip to main content

Approaches to Reinforce Crop Productivity under Water-Limited Conditions in Sub-Humid Environments in Sub-Saharan Africa

Content Type
Author or Institution as Author
Messina J.
Co-authors

Nyamangara J. , Bekunda M. , R. Chikowo, Zingore S., Snapp S.

Date of publication
Language
Gender marker
Youth marker
Description/Abstract

Smallholder farming in much of Sub-Saharan Africa is rain-fed and thus exposed to rainfall variability. Among the climate variables, rainfall is projected to decline and have an overriding effect on crop productivity. With little opportunity for supplementary irrigation for the majority of farmers, a plausible strategy to maintain crop production under water-limited conditions includes balanced nutrient management for enhancing efficiency of use of limited soil water. Co-application of judicious rates of organic and mineral nutrient resources, particularly including the use of phosphorus (P) on P-limited soils, will facilitate development of an extensive crop rooting system for efficient exploration and capture of soil water, especially at a depth > 0.8 m. This chapter explores case studies across Eastern and Southern Africa where various soil water conservation and nutrient management approaches have been used to gain ‘extra miles’ with limited available soil water. Firstly, an approach is described that varies nitrogen (N) fertilizer application across growing seasons, by adjusting N application rates to match current season rainfall trends. The approach offers opportunities for farmers to increase crop productivity to > 6 t ha-1 in high agro-potential areas, compared to a ceiling of 4.5 t ha-1 for the fixed fertilization model, while minimizing economic losses due to investments in N fertilizer during drought years. Secondly, we deal with the subject of fertilization across nutrient gradients, where a poor agronomic N use efficiency of < 18 kg grain kg-1 of applied N is demonstrated for soils with < 0.4% organic carbon, compared with > 35 kg grain kg-1 of N applied when soil organic carbon > 0.5%. Thirdly, the conservation agriculture (CA)-nutrient management nexus is examined, where maize yields in farmers’ fields with CA alone were barely 0.5 t ha-1 compared to an average of 2.5 t ha-1 for CA combined with fertilizers. Fourthly, a novel system that involves intercropping two legumes with contrasting phenology for enhanced cropping system functioning is described. Finally, an approach that can be used for co-learning with farmers on soil fertility management principles for risk management is presented. The data lead to the conclusion that the ‘doubled-up’ legumes system results in reduced fertilizer requirements for cereal crops grown in sequence, which benefits yield stability over time. Variable use of N fertilizer according to season quality and more tailored targeting of nutrients are vital for profitable investments in fertilizers in Africa. The Africa RISING project in Eastern and Southern Africa is currently harnessing some of these principles as vehicles for intensification of smallholder farming systems.

Keywords
Smallholder farming, rainfall, Southern Africa
Citation

Chikowo, R & Zingore, Shamie & Nyamangara, Justice & Bekunda, Mateete & Messina, Joseph & Snapp, Sieglinde. (2015). Approaches to reinforce crop productivity under water-limited conditions in sub-humid environments in Africa. In Sustainable Intensification to advance Food Security and Enhance Climate Resilience in Africa. 239-253. 10.1007/978-3-319-09360-4_12

CCARDESA Category

Disease Surveillance on some farms in Mkushi District of the Central Province of Zambia

Content Type
Author or Institution as Author
ZARI Plant Quarantine & Phytosanitary Service (PQPS)
Date of publication
Institution
Ministry of Agriculture
Language
Gender marker
Youth marker
Description/Abstract

Plant Quarantine and Phytosanitary Service (PQPS-ZARI)

Disease Surveillance on some farms in Mkushi District of the Central Province of Zambia

Keywords
Disease,
Surveillance
Contact name (for further information)
ZARI Plant Quarantine & Phytosanitary Service (PQPS)
Contact institution (for further information)
Ministry of Agriculture
Citation

ZARI Plant Quarantine & Phytosanitary Service (PQPS). (2016). Disease Surveillance on some farms in Mkushi District of the Central Province of Zambia.

A Call for Scaling-Up Response to the Worsening Drought

Content Type
Author or Institution as Author
other
Co-authors

Office of the United Nations Resident coodinator

Date of publication
Language
Gender marker
Youth marker
Description/Abstract

A multi­stakeholders meeting, jointly hosted by the Office of the President and Cabinet and the UN System in Zimbabwe, held today called for scaling up of humanitarian assistance to address the immediate needs of 2.8 million (30% of the total population) drought-­affected people.

Addressing over 170 senior representatives from Government; Diplomatic Corps; Development and Humanitarian Partners; Civil Society Organizations; Non­Governmental Organizations; Private Sector; and the Media; the UN Resident and UNDP Resident Representative, Bishow Parajuli emphasized that “the drought conditions in many parts of the country have been unprecedented and have severely increased the vulnerability of the poor depriving them of their livelihoods including livestock and agricultural production as well as access to water, nutrition, health and education services”.

Like many parts of Southern Africa region, Zimbabwe has been hard­hit by the effects of El Nino, with harvests devastated. The current rainfall season has so far been the driest in the last 35 years rendering over 28 million people food­insecure in the region. The late onset of rains in Zimbabwe apparently reported to be below normal, coupled with higher than average temperatures, has severely affected the prospect of 2015/2016 crop production, livestock and rural livelihoods.

Other Partners

United Nations Zimbabwe

Keywords
Zimbabwe, Drought
Contact email (for further information)
Contact phone (for further information)
+263 772 198 036
CCARDESA Category

Talk on Zero Budget Natural Farming (ZBNF) by Mr Subhash Palekar in Mauritius

Content Type
Author or Institution as Author
Mr Subhash Palekar
Date of publication
Institution
Zero Budget Natural Farming (ZBNF)
Language
Gender marker
Youth marker
Description/Abstract

Mr Subhash Palekar gave a public talk on talk on Zero Budget Natural Farming (ZBNF) on 28.07.16 at the Farmer Training School of the Food and Research and Extension Institute in Mauritius. “Zero Budget spiritual Farming means for all the crops, the production cost will be zero. In the Zero Budget Natural Farming nothing has to be purchased from the outside. All things required for the growth of the plant are available around the root zone of the plants.” …. Read more on his website.

Keywords
Zero Budget Natural Farming
Production cost
Contact name (for further information)
Mauritius
Contact institution (for further information)
Zero Budget Natural Farming (ZBNF)
Citation

Mauritius 07/2016. Talk on Zero Budget Natural Farming (ZBNF) by Mr Subhash Palekar in Mauritius.

Outcomes of the Ministerial workshop on Food Security and Poverty Eradication

Content Type
Author or Institution as Author
SADC Secretariat
Date of publication
Institution
SADC
Language
Gender marker
Youth marker
Description/Abstract

This publication is a report of the outcomes of the workshop convened by His Excellency, Lt. General Dr. Seretse Khama Ian Khama, President of Botswana and Chairperson of SADC in May 2016 on Food Security and Poverty Eradication to exchange ideas on how to address several food and nutrition security challenges in Southern Africa.

Keywords
Low agricultural production,
Inadequate infrastructure development,
Climate Change,
Insufficient and unsustainable financing and investment
Contact name (for further information)
SADC Secretariat
Contact institution (for further information)
SADC
Citation

SADC. (2016) Outcomes of the Ministerial workshop on Food Security and Poverty Eradication.

Cape of storms – sharing the coast in the face of turbulent, rising seas

Content Type
Author or Institution as Author
Leonie Joubert
Co-authors

Anton Cartwright, Gregg Oelofse, Darryl Colenbrander, Anna Taylor, Lucinda Fairhurst and Geoff Brundrit.

Date of publication
Language
Gender marker
Youth marker
Description/Abstract

The Cape coastline faces into a turbulent ocean. Climate change will make this naturally stormy sea all the more formidable. Cape Town has inherited a complex space to manage: land reclaimed from the sea for forts and harbour walls; towering residential flats lined with cemented promenades; economically critical ports and railway lines; ecologically sensitive beaches, dunes and river mouths; and a legacy of dispossession of black South Africans, and privileged access for wealthy whites.

Increasingly stormy seas and higher sea levels are beginning to show up the existing fault lines in the engineered, social and institutional strata of this complex coastline. People working within the City of Cape Town (CoCT) today are making decisions about how to manage these vulnerable spaces – decisions that future generations will have to live and work with.

Short-term, piece-meal, opportunistic responses to the threat of stormier seas will only increase how vulnerable the built city, its inhabitants, economic activities, and the natural environment are. The City, lead by its Environmental Resource Management Department, is developing a rigorous coastal policy and management framework that will enable politicians, managers and residents to respond consistently and appropriately as they are confronted with an uncertain, dynamic, climate-altered future.

This booklet presents research done by the University of Cape Town’s African Centre for Cities, the Stockholm Environment Institute and partner institutions, working closely with the City of Cape Town, to explore ways to manage changing coastal risks

Other Partners

International Development Research Centre and the United Kingdom Departmentfor International Development, African Centre for Cities and Department of Environmental & Geographical Science at the University of Cape Town (UCT), Environmental Resource Management Department,, City of Cape Town (CoCT), Stockholm Environment Institute (SEI)

Keywords
Cape Town, City
Contact phone (for further information)
+27 21 650-5903
CCARDESA Category

Advert wheat consultancy

Content Type
File
IMG_4259.jpeg (2.03 MB)
Author or Institution as Author
CCARDESA
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

An advert to engage a wheat consultant in southern Africa

Keywords
Job
Advert
Wheat
Consultant
Contact name (for further information)
CCARDESA
Contact email (for further information)
Contact institution (for further information)
CCARDESA

Comprehensive Conservation Agriculture Programme for Namibia (2015-2019)

Content Type
Author or Institution as Author
Ministry of Agriculture of the Republic of Namibia
Date of publication
Edition or Version
1.00
Institution
Ministry of Agriculture of the Republic of Namibia
Language
Gender marker
Youth marker
Description/Abstract

Namibia, being a semi-arid country could potentially increase food security at a household level through conservation agriculture. Hence, there is a need for mind shifting among subsistence farmers from conventional farming to Climate Smart Agricultural (CSA) practices such as CA. Climate Smart Agriculture entails technologies aiming at transforming and reorienting agricultural systems into a sustainable agricultural efficiency in support of food security under climate change mitigating interventions. CSA is not only about new farming technologies, but a combination of traditional indigenous knowledge with common agricultural practices and appropriate agricultural technological developments. In addition, CA tend to be successful when combined with other climate smart strategies such as the use of drought tolerant and short maturing crops varieties. The Ministry of Agriculture, Water and Forestry (MAWF) of the Republic of Namibia strives towards attaining food security at both household and national levels through the deployment of efficient and sustainable food production practices. For this reason, MAWF had launched a Comprehensive Conservation Agriculture Programme for Namibia (2015-2019) in an attempt to educate and support subsistence crop farmers on new farming interventions aiming at addressing problems of food insecurity and mitigating the effects of climate change.

Other Partners

FAO

 

Keywords
Crop Production
Soil Management
Water Management
Conservation Agriculture
CA
Intercropping
Sustainable Agriculture
Climate Smart Agriculture
CSA
Climate Change
Contact name (for further information)
Ministry of Agriculture of the Republic of Namibia
Contact institution (for further information)
Ministry of Agriculture of the Republic of Namibia
Citation

Ministry of Agriculture of the Republic of Namibia, 2015. Comprehensive Conservation Agriculture Programme for Namibia (2015-2019)

CCARDESA Category

The Status of Agricultural Information, Communication and Knowledge Management in southern Africa

Content Type
File
agriculture.png (1.06 KB)
Author or Institution as Author
CCARDESA
Co-authors

Dydimus Zengenene

Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This resource is a regional report giving a general status of how agricultural information is being communicated in the region. It synthesizes reports which were developed by 12 SADC member states. The status is an attempt to inform development initiatives which are meant to support agricultural information communication and knowledge management in the region.

Keywords
ICKM
ICT
Agriculture
Knowledge Management

Contact name (for further information)
CCARDESA
Contact email (for further information)
Contact institution (for further information)
CCARDESA
Citation

Zengenene, D. 2017. The Status of Agricultural Information, Communication and Knowledge Management in southern Africa, CCARDESA, Gaborone

CCARDESA Category

Bilan détaillé des investissements et des ressources humaines affectées à la recherche agricole africaine

Content Type
Author or Institution as Author
Nienke Beintema
Co-authors

Gert-Jan Stads

Date of publication
Edition or Version
1.00
Institution
International Food Policy Research Institute (IFPRI)
Language
Gender marker
Youth marker
Description/Abstract

Ce rapport évalue les évolutions des investissements, du capital humain et des résultats dans la recherche agricole en Afrique. Le rapport fait ressortir les grandes tendances transversales et les défis qui se dégagent des données nationales. La présentation de l’information est structurée selon quatre axes thématiques, à savoir la capacité de financement, le capital humain, les produits et résultats de la recherche, et la configuration institutionnelle.

Other Partners

Agricultural Science and Technology Indicators (ASTI) by International Food Policy Research Institute (IFPRI)

Keywords
Agriculture et production alimentaire
Sciences, technologie et innovation
Politiques et institutions
Stratégies par pays
Pauvreté
Protection sociale
Gouvernance
Évaluation des programmes
Sexe
Contact name (for further information)
Nienke Beintema
Contact email (for further information)
Contact institution (for further information)
International Food Policy Research Institute
Citation

Beintema, Nienke; and Stads, Gert-Jan. 2017. Bilan détaillé des investissements et des ressources humaines affectées à la recherche agricole africaine. ASTI Synthesis Report. Washington, D.C.: International Food Policy Research Institute (IFPRI). http://ebrary.ifpri.org/cdm/ref/collection/p15738coll2/id/131403

CCARDESA Category
Subscribe to International Research Institutions

Funding Partners

4.61M

Beneficiaries Reached

97000

Farmers Trained

3720

Number of Value Chain Actors Accessing CSA

41300

Lead Farmers Supported