The Sustainable Management of VertisolsJohn K. Syers, F. W. T. Penning de Vries, Phibion Nyamudeza This book is based on a workshop held in Zimbabwe, May 1999, organized by the Department of Research and Specialist Services (Zimbabwe) and the International Board for Soil Research and Management (IBSRAM). Reviewing the current state of knowledge on and the practical aspects of the management of Vertisols in Africa, this book also includes comparative chapters covering other parts of the world, such as India, Australia and Texas (USA). |
Contents
| 21 | |
| 43 | |
| 57 | |
| 71 | |
| 85 | |
Vertisols Management in Tanzania | 113 |
Vertisols Management in Zambia | 129 |
Vertisols Management in Zimbabwe | 139 |
Experience in Farmer | 173 |
International Perspectives on the Management | 187 |
ICRISATs Research Impact Past Present | 203 |
Planning and Facilitating a Negotiated Learning and Action | 221 |
Research Approaches to Developing Sustainable Management | 247 |
The Vertisols of Texas | 267 |
Research Needs and Opportunities for Farming Vertisols | 283 |
Improving the Productivity of Vertisols for Smallholders on | 155 |
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Common terms and phrases
Accra Accra Plains Addis Ababa adoption Agricultural Research Australia BBM package broadbed and furrow cambered bed Chiredzi Chisumbanje cmol conservation constraints crop production crop yields cultivation degradation drainage effect Ethiopia Ethiopian Highlands fallow farmers and scientists farming systems Gezira Ghana gilgai grain yield ha-¹ highlands ICRISAT implement improved increased India infiltration rates inputs International irrigation km² livestock maize Malawi Management of Vertisols management practices maresha moisture nitrogen nutrient Nyamudeza on-farm organic matter participants participatory Patancheru planting plots ploughing potential problems rainfall rainfed reduced Research Institute research process residue resource ridges rotation runoff season seeds simulator smallholder smectite soil erosion soil fertility soil loss soil management soil physical Soil Science soil water sorghum South Africa Springbok Springbok Flats Sudan Sustainable Management Table Tanzania Thailand tillage tractor traditional vertic horizon Vertisol management waterlogging watershed weed wheat Zambia Zimbabwe zones
Popular passages
Page 227 - ... but are not involved in the experimentation or the process of learning. It is very common to see this called participation, yet people have no stake in prolonging activities when the incentives end.
Page 227 - Participation for material incentives People participate by contributing resources, for example labour, in return for food, cash or other material incentives. Farmers may provide the fields and labour, but are involved in neither experimentation nor the process of learning.
Page 227 - People participate in joint analysis, development of action plans and formation or strengthening of local institutions. Participation is seen as a right, not just the means to achieve project goals. The process involves interdisciplinary methodologies that seek multiple perspectives and make use of systemic and structured learning processes.
Page 227 - Farmers may provide the fields and labour, but are involved in neither experimentation nor the process of learning. It is very common to see this called participation, yet people have no stake in prolonging technologies or practices when the incentives end Participation seen by external agencies as a means to achieve project goals, especially reduced costs.
Page 227 - People participate by taking initiatives independently of external institutions to change systems. They develop contacts with external institutions for resources and technical advice they need, but retain control over how resources are used.
Page 65 - In this context sustainable land management (SLM) combines technologies, policies, and activities aimed at integrating socioeconomic principles with environmental concerns so as to...
Page 39 - The effects of plot length and tillage orientation on erosion processes and runoff and erosion rates.
Page 54 - Burford, JR, Sahrawat, KL, and Singh, RP 1989. Nutrient management in Vertisols in the Indian semi-arid tropics.