Presents papers and abstracts on the management of vertisols in sub-Saharan Africa and other parts of the world. Overviews the importance, distribution, agroclimatology and properties of vertisols and the Indian Vertisol technology experience. Reviews resource assessment and management and highli...
Jutzi, S.C.
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Haque, I.
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McIntire, John M.
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Stares, J.E.S.
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[Management of Vertisols in sub-Saharan Africa. Proceedings of a conference]
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Management of Vertisols in sub-Saharan Africa. Proceedings of a conference
Summarizes and discusses the results of an experiment carried out in 1983 with oats and Italian ryegrass on a soil with vertic properties near Debre Berhan area (Ethiopia) to examine the effects of improved drainage and fertilization (N/P).
Haque, I.
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Jutzi, S.C.
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[Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie]
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Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie
Summarizes and discusses the results of an experiment carried out in 1983 with oats and Italian ryegrass on a soil with vertic properties near Debre Berhan area (Ethiopia) to examine the effects of improved drainage and fertilization (N/P).
Haque, I.
,
Jutzi, S.C.
,
[Effects of improved drainage and fertilization on the growth of Italian ryegrass and oats on a soil with vertic properties at Debre Berhan, Ethiopia]
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Effects of improved drainage and fertilization on the growth of Italian ryegrass and oats on a soil with vertic properties at Debre Berhan, Ethiopia
Reviews vertisol management research experiences in Ethiopia. Discusses the relative potential of vertisols and Development of the Ethiopian Vertisol Program. Examines integration of research programmes and technology extension. Presents data on th economic evaluation of improved, animal-powered ...
Gives results of the 1987 main rainy season results of the trials conducted to determine the effects of vertisol surface drainage on soil and nutrient conservation, excess water disposal and wheat growth at the Debre Zeit ILCA station and at Hidi.
Astatke, A.
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Jutzi, S.C.
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Grunder, M.
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[Vertisol surface drainage and effects on soil and nutrient conservation, excess water disposal and wheat growth at Debre Zeit]
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Vertisol surface drainage and effects on soil and nutrient conservation, excess water disposal and wheat growth at Debre Zeit
Presents and discusses the effects of animal power use for improved soil surface drainage on food and feed production on the vertisols of the Ethiopian highlands. Examines the on-farm technology validation programme at ILCA; describes crop/livestock interactions in these vertisol areas; highlight...
Asamenew, G.
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Jutzi, S.C.
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Tedla, A.
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McIntire, John M.
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Ikavalko, E.
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[Improved draught power use for increased food and feed production on Ethiopian highland vertisols]
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Improved draught power use for increased food and feed production on Ethiopian highland vertisols
Discusses intermediate technology for increased food and feed production from deep black clay soils (vertisols) in the Ethiopian highlands. Presents examples of improved soil/water/nutrient management on vertisols discussing tillage and animal powered surface drainage and its effect on crop yield...
Jutzi, S.C.
,
Asamenew, G.
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Tedla, A.
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Astatke, A.
,
[Intermediate technology for increased food and feed production from deep black clay soils in the Ethiopian highlands]
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Intermediate technology for increased food and feed production from deep black clay soils in the Ethiopian highlands
Outlines an economic evaluation of an improved surface drainage technology, using the broad-bed-maker (BBM) on-farm in four different vertisol areas of the Ethiopian highlands. Presents data on crops and number of areas covered for the on-farm drainage technology, on cost structure of the BBM, an...
Asamenew, G.
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Jutzi, S.C.
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Tedla, A.
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McIntire, John M.
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[Economic evaluation of improved vertisol drainage for food crop production in the Ethiopian highlands]
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Economic evaluation of improved vertisol drainage for food crop production in the Ethiopian highlands
Describes modifications to the traditional ox-drawn ard plow (maresha) for use in the construction of terraces for soil conservation and of raised beds and furrows to facilitate drainage on heavy clay soils together with results of on-station and on-farm tests. Both modifications can be made by v...
Jutzi, S.C.
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Anderson, F.M.
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Astatke, A.
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[Low-cost modifications of the traditional Ethiopian tine plough for land shaping and surface drainage of heavy clay soils: Preliminary results from on-farm verification trials]
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Low-cost modifications of the traditional Ethiopian tine plough for land shaping and surface drainage of heavy clay soils: Preliminary results from on-farm verification trials