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Journal Article 1988

Autor: Nnadi, L.A. Haque, I.

Presents results of a study conducted at Debre Zeit, Ethiopia, to examine the differences in mineral composition, root N contents and their rates of transformation in the soil of different species of four genera of forage legumes, viz, Trifolium, Lablab, Medicago and Vicia. Also examines the effe...

Enlace original: https://cgspace.cgiar.org/handle/10568/28841

Investigación en Agricultura
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Nnadi, L.A. ,  Haque, I. ,  [Root nitrogen transformation and mineral composition in selected forage legumes] ,  Root nitrogen transformation and mineral composition in selected forage legumes
Working Paper 1994

Autor: Saka, A.R. Haque, I. Lupwayi, N.Z. El-Wakeel, A.

This document starts by describing the five main agroecological zones of sub-Saharan Africa, viz, arid, semi-arid, subhumid, humid, and highland, and summarising population and agricultural production. Then it goes to the main topics that includes inter cropping systems; criteria for evaluating t...

Enlace original: https://cgspace.cgiar.org/handle/10568/4428

Investigación en Agricultura
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Saka, A.R. ,  Haque, I. ,  Lupwayi, N.Z. ,  El-Wakeel, A. ,  [Forage legumes in crop-livestock systems of sub-Saharan Africa] ,  Forage legumes in crop-livestock systems of sub-Saharan Africa
Working Paper 1991

Autor: Tadesse, T. Haque, I. Aduayi, E.A.

Describes procedures for the analysis of chemical constituents in soil, plant, water, fertilizer, animal manure and compost samples. Includes simple procedures for collecting, preparing and storing samples, including information on the need to care for field and laboratory materials such as sampl...

Enlace original: https://cgspace.cgiar.org/handle/10568/4448

Investigación en Agricultura
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Tadesse, T. ,  Haque, I. ,  Aduayi, E.A. ,  [Soil, plant, water, fertilizer, animal manure and compost analysis manual] ,  Soil, plant, water, fertilizer, animal manure and compost analysis manual
Working Paper 1993

Autor: Saka, A.R. Haque, I. Singh, U. Thornton, Philip K.

This document gives detailed step by step information on minium data sets collection procedures for the maize/vetch intercropping trial conducted at the Debre Zeit Expeiment Station in the Ethiopian highlands. Details are given on soil characterization, plot layout, initial condition soil samplin...

Enlace original: https://cgspace.cgiar.org/handle/10568/4429

Investigación en Agricultura
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Saka, A.R. ,  Haque, I. ,  Singh, U. ,  Thornton, Philip K. ,  [Maize/Annual forage legumes mixed cropping systems: Characterizing water and nitrogen dynamics in maize/vetch pure and mixed stands. 1. Procedures for collecting minimum data sets] ,  Maize/Annual forage legumes mixed cropping systems: Characterizing water and nitrogen dynamics in maize/vetch pure and mixed stands. 1. Procedures for collecting minimum data sets
Journal Article 1999

Autor: Lupwayi, N.Z. Haque, I. Saka, A.R. Siaw, D.E.K.A.

The effects of Leucaena leucocephala and L. pallida prunings and cattle manure on maize nutrient uptake and yield were investigated in a hedgerow inter-cropping trial in the Ethiopian highlands. Hedgerow inter-cropping (also called alley cropping) is an agroforestry system in which trees are grow...

Enlace original: https://cgspace.cgiar.org/handle/10568/30100

Investigación en Agricultura
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Lupwayi, N.Z. ,  Haque, I. ,  Saka, A.R. ,  Siaw, D.E.K.A. ,  [Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. II. Maize yields and nutrient uptake] ,  Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. II. Maize yields and nutrient uptake
Journal Article 1993

Autor: Nnadi, L.A. Haque, I. Mugwira, L.M.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/28422

Investigación en Agricultura
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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
Journal Article 1999

Autor: Haque, I. Lupwayi, N.Z.

Poor drainage of Vertisols and nitrogen (N) and phosphorus (P) deficiencies are some if the major constraints to food and feed production in the Ethiopian highlands. The effects of soil drainage and P supply on N fixation by annual trifolium species and their residual value to succeeding crops wa...

Enlace original: https://cgspace.cgiar.org/handle/10568/28370

Investigación en Agricultura
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Haque, I. ,  Lupwayi, N.Z. ,  [Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands] ,  Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands
Journal Article 1999

Autor: Lupwayi, N.Z. Haque, I.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/30099

Investigación en Agricultura
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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
Working Paper 1989

Autor: Haque, I. Amare, T.
Enlace original: https://cgspace.cgiar.org/handle/10568/4299

Investigación en Agricultura
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Haque, I. ,  Amare, T. ,  [Abstracts/Summaries of publications of Soil Science & Plant Nutrition Section: 1984-1989] ,  Abstracts/Summaries of publications of Soil Science & Plant Nutrition Section: 1984-1989
Working Paper 1991

Autor: Haque, I. Amare, T.
Enlace original: https://cgspace.cgiar.org/handle/10568/4301

Investigación en Agricultura
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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

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