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Conference Paper 1988

Autor: Wortmann, Charles S. Zake, JYK

Results of research work carried out in Africa on the response of beans to NPK fertilizers, liming, S and other secondary/micronutrients, and organic manures are reviewed. Band or spot placement of P, fertilizer management in multiple crop systems, and correlations between soil data, yields, and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55964

Investigación en Agricultura
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Wortmann, Charles S. ,  Zake, JYK ,  [Review of bean responses to applied fertilizers in Africa] ,  Review of bean responses to applied fertilizers in Africa
Journal Article 1993

Autor: Wortmann, Charles S.
Enlace original: https://cgspace.cgiar.org/handle/10568/65745

Investigación en Agricultura
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Wortmann, Charles S. ,  [Foliar nutrient testing with the diagnosis and recommendation integrated system (DRIS) for beans] ,  Foliar nutrient testing with the diagnosis and recommendation integrated system (DRIS) for beans
Conference Proceedings 1988

Autor: Wortmann, Charles S.

A regional workshop was held in Ethiopia (Eastern Africa) to assess the status, future needs, and methodological issues of soil fertility research for bean cropping systems on the continent. Traditional forms of soil fertility maintenance, diagnosis of soil fertility constraints, nutrient require...

Enlace original: https://cgspace.cgiar.org/handle/10568/56492

Investigación en Agricultura
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Wortmann, Charles S. ,  [Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings] ,  Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings
Conference Paper 1988

Autor: Wortmann, Charles S. Regassa, T Mughogho, SK

The 3 stages of the diagnostic procedure to identify soil fertility problems are reviewed, namely (1) classification of land into soil fertility management units, (2) diagnosis of soil fertility and plant nutrition problems, and (3) determination of the causes and mechanisms of nutrient disorders...

Enlace original: https://cgspace.cgiar.org/handle/10568/55963

Investigación en Agricultura
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Wortmann, Charles S. ,  Regassa, T ,  Mughogho, SK ,  [Research methods for the diagnosis of soil fertility problems] ,  Research methods for the diagnosis of soil fertility problems
Conference Paper 1988

Autor: Mughogho, SK Wortmann, Charles S.

Bean yields are expected to increase due to improved varieties and better cultural and harvesting practices. Higher yields increase the nutrient requirements of the bean crops and the complexity of management. Better low input management practices will be needed for beans grown in pure stand and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55957

Investigación en Agricultura
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Mughogho, SK ,  Wortmann, Charles S. ,  [Research needs and methods for the use of fertilizers and soil amendments in bean-based cropping systems] ,  Research needs and methods for the use of fertilizers and soil amendments in bean-based cropping systems

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