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An alfalfa field experiment was conducted at the Debre Zeit Experiment station for a period of 2 years with the main objective of investigating the effects of cattle manure om dry matter yields, plant tissue nutrient concentration and plant nutrient uptake. Dry matter yields were significantly in...


Saka, A.R.Haque, I.[Manure studies in the Ethiopian highlands. I. Effect on Medicago sativa L. grown on an alfisol]Manure studies in the Ethiopian highlands. I. Effect on Medicago sativa L. grown on an alfisol

This document reports on the results of two experiments which investigted the effects of manure on alfalfa and desmodium grown on an Ultisol at Soddo in Sidamo region. The experiments were conducted to determine the effects of cattle manure on dry matter yields and on nutrient uptake by alfalfa a...


Saka, A.R.Haque, I.[Manure studies in the Ethiopian highlands: II. Effect on Medicago sativa L. and Desmodium uncinatum grown on an ultisol]Manure studies in the Ethiopian highlands: II. Effect on Medicago sativa L. and Desmodium uncinatum grown on an ultisol

Pot trials and laboratory phosphorus (P) sorption studies were conducted to evaluate the response of seven Ethiopian clover species (T. decorum, T. steudneri, T. quartinianum, T. rueppellianum, T. schimperi, T. tembense, and T. subterraneum) to applied P and further to determine the critical exte...


Nnadi, L.A.Haque, I.Mugwira, L.M.[Phosphorus response and mineral composition of Ethiopian highland Trifolium (clover) species]Phosphorus response and mineral composition of Ethiopian highland Trifolium (clover) species

Although the majority of soils in Africa are P deficient, the high cost of conventional water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effect of Egyptian rockphosphate (ERP) from two sources, applied at 50 kg P ha-1, on annual...


Haque, I.Lupwayi, N.Z.[Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia]Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia

Balances between nutrients applied or mineralized and nutrients removed in maize grain and stover were calculated in a hedgerow intercropping experiment in which Leucaena leucocephala and L. pallida prunings and cattle manure were applied. Hedgerow intercropping (also called alley cropping) is an...


Lupwayi, N.Z.Haque, I.[Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. III. Nutrient balances]Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. III. Nutrient balances

Part I deals with effect of cropping systems on growth; effect of cowpea variety on dry matter yield and on intercrop maize & cowpea; effect of intercropping on dry matter yield and on grain yield; intercrop vs sole dry matter yields; intercropping systems & total dry matter yields; effect of int...


Kamara, C.S.Haque, I.[Intercropping maize & forage type cowpeas in the Ethiopian highlands: I. Growth & dry matter yields. II. Soil moisture, soil temperature, solar radiation regimes and water use efficiency]Intercropping maize & forage type cowpeas in the Ethiopian highlands: I. Growth & dry matter yields. II. Soil moisture, soil temperature, solar radiation regimes and water use efficiency
Haque, I.Amare, T.[Soil science & plant nutrition annual reports: 1983-1990 and projects protocols: 1991-1993]Soil science & plant nutrition annual reports: 1983-1990 and projects protocols: 1991-1993

Reports on research activities carried out by ILCA's highland programme to devise an appropriate animal feed production strategy for small scale farmeres in the Ethiopian highlands. Gives a critical analysis of the available sources of animal feed, such as, roughages from native pasture, browse a...


Jutzi, S.C.Haque, I.Tedla, A.[The production of animal feed in the Ethiopian highlands: Potentials and limitations]The production of animal feed in the Ethiopian highlands: Potentials and limitations

Summarises available information on bulk density and porosity, soil moisture infiltration, N, P and mineralogy. Literature on the phosphorus (P) status of soils, P nutrition of forage legumes and crops, mycorrhizal and P nutrition, species and varietal variation in response to P, P sorption isoth...


Haque, I.Mamo, T.Astatke, A.[Nutrients and soil surface management on highland vertisols of Ethiopia]Nutrients and soil surface management on highland vertisols of Ethiopia
Autor: Haque, I.

The paper is divided into two parts. The first part deals with the maitenance of soil productivity under population pressure, and the second part covers research themes and approaches for maintaining soil productivity in crop-livestock systems. Part one discusses project activities including char...


Haque, I.[Soil resource management in mixed crop-livestock systems of East and Central African highlands: Research agenda and approaches]Soil resource management in mixed crop-livestock systems of East and Central African highlands: Research agenda and approaches

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