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Journal Article 2001

Autor: Oberson, Astrid Friesen, Dennis K. Rao, Idupulapati M. Buhler, S Frossard, Emmanuel

It is generally assumed that phosphorus (P) availability for plant growth on highly weathered and P-deficient tropical soils may depend more on biologically mediated organic P (Po) turnover processes than on the release of adsorbed inorganic P (Pi). However, experimental evidence showing the link...

Enlace original: https://cgspace.cgiar.org/handle/10568/43949

Investigación en Agricultura
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Oberson, Astrid ,  Friesen, Dennis K. ,  Rao, Idupulapati M. ,  Buhler, S ,  Frossard, Emmanuel ,  [Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass] ,  Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass
Journal Article 2002

Autor: Buehler, S. Oberson, Astrid Rao, Idupulapati M. Friesen, Dennis K. Frossard, Emmanuel

Chemical sequential extraction is widely used to divide soil phosphorus (P) into different inorganic (Pi) and organic (Po) fractions, but the assignment of these fractions to pools of differing plant availability, especially for low P tropical soils, is still matter of discussion. To improve this...

Enlace original: https://cgspace.cgiar.org/handle/10568/44090

Investigación en Agricultura
Enlace permanente
Buehler, S. ,  Oberson, Astrid ,  Rao, Idupulapati M. ,  Friesen, Dennis K. ,  Frossard, Emmanuel ,  [Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems] ,  Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems
Journal Article 1999

Autor: Rao, Idupulapati M. Friesen, Dennis K. Horst, Walter J.
Enlace original: https://cgspace.cgiar.org/handle/10568/77721

Investigación en Agricultura
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Rao, Idupulapati M. ,  Friesen, Dennis K. ,  Horst, Walter J. ,  [Opportunities for germplasm selection to influence phosphorus acquisition from low-phosphorus soils] ,  Opportunities for germplasm selection to influence phosphorus acquisition from low-phosphorus soils
Journal Article 1980

Autor: Friesen, Dennis K. Juo, A.S.R. Miller, M.H.

Interactions of lime, phosphorus (P), and zinc (Zn) in two coarse-textured Ultisols from southeastern Nigeria were examined by means of factorial soil incubation and phosphate sorption experiments. In both soils, liming reduced exchangeable aluminum (Al) saturation from 45% to < 5% at pH 5.0 and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/81117

Investigación en Agricultura
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Friesen, Dennis K. ,  Juo, A.S.R. ,  Miller, M.H. ,  [Liming and lime-phosphorus-zinc interactions in two Nigerian Ultisols: I. Interactions in the soil] ,  Liming and lime-phosphorus-zinc interactions in two Nigerian Ultisols: I. Interactions in the soil
Journal Article 2013-09-15

Autor: Ertiro, B.T. Twumasi-Afriyie, S. Blümmel, Michael Friesen, Dennis K. Negera, D. Worku, M. Abakemal, D. Kitenge, K.

Maize stover left after grain harvest constitutes an important source for livestock feed in most parts of East Africa, particularly during the dry season. In spite of its wide use and greater importance, breeding programs have given little attention to the improvement of stover quality and quanti...

Enlace original: https://cgspace.cgiar.org/handle/10568/27683

Investigación en Agricultura
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Ertiro, B.T. ,  Twumasi-Afriyie, S. ,  Blümmel, Michael ,  Friesen, Dennis K. ,  Negera, D. ,  Worku, M. ,  Abakemal, D. ,  Kitenge, K. ,  [Genetic variability of maize stover quality and the potential for genetic improvement of fodder value] ,  Genetic variability of maize stover quality and the potential for genetic improvement of fodder value
Journal Article 2013-09-15

Autor: Ertiro, B.T. Zeleke, H. Friesen, Dennis K. Blümmel, Michael Twumasi-Afriyie, S.
Enlace original: https://cgspace.cgiar.org/handle/10568/27776

Investigación en Agricultura
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Ertiro, B.T. ,  Zeleke, H. ,  Friesen, Dennis K. ,  Blümmel, Michael ,  Twumasi-Afriyie, S. ,  [Relationship between the performance of parental inbred lines and hybrids for food-feed traits in maize (Zea mays L.) in Ethiopia] ,  Relationship between the performance of parental inbred lines and hybrids for food-feed traits in maize (Zea mays L.) in Ethiopia

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