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The incorporation of livestock into alley farming systems, in which food or forage crops are grown between hedges of multipurpose trees that are regularly pruned for mulch and/or forage, has been studied for over 10 years in Africa. Prunings from leguminous trees such as Leucaena and gliricidia c...


Reynolds, L.Jabbar, M.A.[The role of alley farming in African livestock production]The role of alley farming in African livestock production

In Ethiopia smallholder livestock producers have adopted components of improved dairy technologies but the intensity of adoption remains low. It is hypothesized that credit-related constraints limit the ability of many smallholder farmers to make investments in crossbred cows and/or to purchase c...


Freeman, H.A.Jabbar, M.A.Ehui, Simeon K.Gebreselassie, N.[The role of credit in the uptake of improved dairy technologies in Ethiopia]The role of credit in the uptake of improved dairy technologies in Ethiopia

An experiment was conducted on an Ultisol at the International Institute of Tropical Agriculture (IITA) High Rainfall Station, Onne, in the humid forest zone of south-eastern Nigeria. The objective of the study was to define groups of multipurpose trees using multiple variables to select material...


Larbi, AsamoahLadipo, D.O.Adekunle, I.O.Smith, Jimmy W.Jabbar, M.A.[Multipurpose tree selection for silvopastoral systems on acid Ultisols. The effect of grass competition on early growth of tree and shrub species]Multipurpose tree selection for silvopastoral systems on acid Ultisols. The effect of grass competition on early growth of tree and shrub species

Land degradation is one of the major problems related to low productivity in Ethiopia. Vertisols are potential agricultural lands but are underutilized due to waterlogging during the rainy season and are prone to soil erosion due to the traditional practices of planting crops at the end of the ra...


Astatke, A.Jabbar, M.A.Mohamed Saleem, M.A.Erkossa, Teklu[Technical and economic performance of animal-drawn implements for minimum tillage: Experience on Vertisols in Ethiopia]Technical and economic performance of animal-drawn implements for minimum tillage: Experience on Vertisols in Ethiopia
Autor: Jabbar, M.A.

Understanding marketed surplus and marketing behaviour of producers helps design technology, policy and institutions to facilitate the process of commercialization of agriculture. In this paper, empirical studies on marketed surplus of rice have been reviewed with a focus on the concepts and meth...


Jabbar, M.A.[Empirical estimation of marketed surplus of rice in Bangladesh: A critical review]Empirical estimation of marketed surplus of rice in Bangladesh: A critical review

Farmer participatory tillage trials were conducted in a highland Vertisol area of Ethiopia during the 1999 and 2000 cropping seasons. This participatory initiative clearly demonstrated that incorporating farmers’ knowledge, ideas and preferences could improve the wheat production package. A tradi...


Astatke, A.Jabbar, M.A.Tanner, D.[Participatory conservation tillage research: An experience with minimum tillage on an Ethiopian highland Vertisol]Participatory conservation tillage research: An experience with minimum tillage on an Ethiopian highland Vertisol

Two experiments were conducted using dried leaves of Alchornea cordifolia, Ficus capensis, Manniophytum fulvum and Albizza niopoides. In Experiment 1, dry matter (DM) degradation characteristics were investigated using the in sacco nylon bag technique in West African Dwarf (WAD) sheep, WAD goats ...


Smith, Jimmy W.Larbi, AsamoahJabbar, M.A.Akinlade, J.[Rumen degradation in sheep, goats and cattle and voluntary intake by sheep of four browse species]Rumen degradation in sheep, goats and cattle and voluntary intake by sheep of four browse species

Crude protein content and in sacco dry matter (DM) loss after 72 h of incubation in West African Dwarf (WAD) sheep and goats of fresh, wilted and dried leaves of Gliricidia sepium were compared. Additionally, voluntary DM intakes by WAD sheep and goats of G. sepium leaves presented in the fresh, ...


Smith, Jimmy W.Larbi, AsamoahJabbar, M.A.Akinlade, J.[Voluntary intake by sheep and goats of Gliricidia sepium fed in three states and at three levels of supplementation to a basal diet of Panicum maximum]Voluntary intake by sheep and goats of Gliricidia sepium fed in three states and at three levels of supplementation to a basal diet of Panicum maximum

In West Africa, crop-livestock mixed farming is emerging from the currently predominant nomadic pastoralism. It is hypothesized that competitiveness between crop and livestock enterprises may be an important determinant of the pace of this evolution. A field study in the derived savanna of southw...


Okoruwa, V.Jabbar, M.A.Akinwumi, J.A.[Crop-livestock competition in the West African derived savanna: Application of a multi-objective programming model]Crop-livestock competition in the West African derived savanna: Application of a multi-objective programming model

In Ethiopia, Vertisols which are affected by water logging during the rainy season due to its physical and chemical characteristics are potential agricultural lands but are prone to soil erosion. The soil erosion rates of the cultivated Vertisols are accelerated due to the traditional practices o...


Astatke, A.Jabbar, M.A.Mohamed Saleem, M.A.Erkossa, Teklu[Development and testing of low-cost animal drawn minimum tillage implements: Experience on Vertisols in Ethiopia]Development and testing of low-cost animal drawn minimum tillage implements: Experience on Vertisols in Ethiopia

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