PROCEEDINGS OF A CONFERENCE HELD AT ILCA, ADDIS ABABA, ETHIOPIA
31 AUGUST-4 SEPTEMBER 1987
SEPTEMBER 1988
International Livestock Centre For Africa
P.O. BOX 5689, Addis Ababa, Ethiopia
PHOTOS
Front cover
Vicia faba growing on broadbeds (right) and on traditional ridges (left) on a pellic Vertisol in Wello, Ethiopia.
Back cover
Bread wheat growing uniformly on broadbeds on a pellic Vertisol in northern Shewa, Ethiopia.
Edited by
S.C. Jutzi
I. Haque
J. McIntire
J.E.S. StaresCorrect citation: Jutzi S C, Haque I, McIntire J and Stares J E S (eds). 1988. Management of Vertisols in sub-Saharan Africa. Proceedings of a conference held at ILCA, Addis Ababa, Ethiopia, 31 August-4 September 1987. ILCA, Addis Ababa.
ABSTRACT
This volume contains 19 papers and 26 abstracts from an international conference on the management of Vertisols in sub-Saharan Africa and other parts of the world. Three papers and one abstract overview the importance, distribution, agroclimatology and properties of Vertisols and the Indian Vertisol technology experience. Eight papers and 10 abstracts deal with resource assessment, while six papers and 15 abstracts review the resource management of Vertisols. Two papers highlight inter-institutional modes of operation and networking concepts in Vertisol research and development. Opening and closing addresses to the conference, and recommendations, are also presented.
KEYWORDS
Vertisols/Vertic soils/Clay soils/Waterlogging/Cracking/Resource assessment/Agroclimatology/Physical properties/Chemical properties/Soil water/Nutrients/Irrigation/Soil fertility/Resource management/Soil surface drainage/Tillage/Animal power/Land use systems/Cropping systems/Forages/Economic evaluation/Vertisol technology/Traditional farming systems/Institutional support/Networking/Sub-Saharan Africa
RESUME
Ce volume regroupe dix-neuf documents et vingt-six résumés de communications présentés lors de la Conférence internationale sur la gestion des vertisols au sud du Sahara et dans d'autres parties du monde. Trois de ces documents et l'un des résumés portent sur l'importance, la distribution, l'agroclimatologie et les propriétés des vertisols ainsi que sur l'expérience indienne en matière de technologies relatives aux vertisols. Huit documents et dix résumés traitent de l'évaluation des ressources, et six documents et quinze résumés font référence à leur gestion. Deux documents sont consacrés aux modes interinstitutionnels de fonctionnement et au concept de réseau en matière de recherche et de développement des vertisols. Les allocutions d'ouverture et de clôture ainsi que des recommandations sont également présentées.
MOTS CLES
Vertisols/Sols vertiques/Sols argileux/ Engorgement/Formation de fentes/Evaluation des ressources/Agroclimatologie/Propriétés physiques/Propriétés chimiques/Eau du sol/Eléments nutritifs/Irrigation/Fertilité du sol/Gestion des ressources/Drainage superficiel/Travail du sol/Force animale/Système d'occupation des sols/Système cultural/Fourrages/Evaluation économique/Technologies des vertisols/Systèmes agraires traditionnels/Appui institutionnel/Réseau/Afrique subsaharienne.
This electronic document has been scanned using optical character recognition (OCR) software and careful manual recorrection. Even if the quality of digitalisation is high, the FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.
Developing, testing and transferring improved Vertisol technology: The Indian experience
Abstract
Introduction
Vertisols and their environment
Soil degradation
Traditional dryland farming systems
Prevailing production constraints
Improved cropping systems
On-farm studies of the improved systems
Early adoption by farmers of the new technologies
Conclusions
ReferencesAgroclimatology of the Vertisols and vertic soil areas of Africa
Abstract
Introduction
Distribution of Vertisols and vertic soils in Africa
The climate of Tropical Africa
Thermal environment of Vertisols and vertic soils in Africa
Hygric environment
Role of soil-climate interaction studies in agricultural development
ReferencesClassification and management-related properties of Vertisols
Abstract
Introduction
Classification
Soil morphological properties - microvariability
Management-related constraints
Conclusions
ReferencesToe sub-Saharan Vertisols - An overview
Agroecological assessment of Ethiopian Vertisols
Abstract
Introduction
Methods
Results and discussion
ReferencesAssessing the agroclimatic potential of Vertisols
Agroclimatic data analysis of selected locations in the Vertisols regions of Ethiopia
Physical properties of Ethiopian Vertisols
Abstract
Introduction
Importance of Vertisols in Ethiopian agriculture
Physical properties of Ethiopian Vertisols
Problems
Research results
Conclusions
ReferencesSoil burning in Ethiopia: Some effects on soil fertility and physics
Soil water measurement and management on Vertisols in Queensland, Australia
Abstract
Introduction
Soil water content
Plant available water capacity
Infiltration
Evaporation
Drainage
Management practices
Conclusions
Acknowledgements
ReferencesIrrigation water management for cotton on Vertisols in the middle Awash region of Ethiopia
Abstract
Introduction
Materials and methods
Results and discussion
Conclusions
Acknowledgements
ReferencesSoil moisture related properties of Vertisols in the Ethiopian highlands
Abstract
Introduction
Materials and methods
Results and discussion
Acknowledgements
ReferencesSoil moisture storage along a toposequence in Ethiopian Vertisols
Abstract
Introduction
Materials and methods
Results and discussion
Acknowledgements
ReferencesSoil fertility research on some Ethiopian Vertisols
Abstract
Introduction
Characteristics
Fertility management
Conclusions
ReferencesPhosphorus status of some Ethiopian highland Vertisols
Abstract
Introduction
Materials and methods
Results and discussion
Summary and conclusions
ReferencesVertic arable soils of central Ethiopia: Their fertility status and weed community
Response of Sesbania sesban to nitrogen and phosphorus fertilization on two Ethiopian Vertisols
Rainwater management on Vertisols for crop production in semi-arid regions
Abstract
Introduction
Improved drainage technology and evaluation technique
Results
Discussion and conclusions
Acknowledgements
ReferencesOccurrence, properties and management of Vertisols in the Caribbean
Soil conservation works on Vertisols of central Ethiopia
Characteristics and management problems of Vertisols in the Nigerian savannah
Abstract
Introduction
Materials and methods
Results and discussion
Problems of soil management
Acknowledgement
ReferencesLand-use systems for Vertisols in the Bay Region of Somalia
Abstract
Introduction
Crop production
Livestock production
Discussion
Acknowledgments
ReferencesCrop agronomy research on Vertisols in the central highlands of Ethiopia: Jar's experience
Abstract
Introduction
Crops and production patterns
Review of research results
Future research
ReferencesRainfed agriculture and cropping systems on Vertisols in Sudan
State of knowledge and critical analysis of the use and management of Vertisols in Burkina Faso
Nigerian dark clay and associated soils
Vertisols in Burundi: Their importance, use and potential
The extent and utilisation of Vertisols in Swaziland
Properties, uses and management of Vertisols in Malawi
Vertisols of Zambia: Their management, productivity and economic assessment
Abstract
Introduction
Materials and methods
Contribution of livestock to farm income
Conclusions
ReferencesVertisols of Ghana: Uses and potential for improved management using cattle
Abstract
Introduction
Environmental and soils characteristics
Use, management and productivity
Potential for improved management of Vertisols using cattle
Conclusions
ReferencesEffect of tillage frequency of clay soils on the draught of the Ethiopian ard (maresha)
Utilisation of feed resources by draught animals on smallholder farms in the Ethiopian highlands
Diagnosis of traditional farming systems in some Ethiopian highland Vertisol areas
Abstract
Introduction
Rationale for inter-institutional activities in Vertisol research and development
Present features of inter-institutional research and development agreements for the Ethiopian highlands
Potential and envisaged developments in the inter-institutional coordination of Vertisol-related activities
ReferencesNetworking on Vertisol management concepts, problems and development
Abstract
Introduction
Soil management and network concepts
Major Vertisol management problems
Development of the MOVUSAC network
References
Panel recommendations on research needs for sustained agriculture on African Vertisols
Introduction
Resource assessment
Resource management
Inter-institutional cooperation and networking