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Journal Article 2017

Autor: Louw-Gaume, Anna E. Schweizer, Noel Rao, Idupulapati M. Gaume, Alain J. Frossard, Emmanuel

Exploiting the natural variability of Brachiaria forage germplasm to identify forage grasses adapted to infertile acid soils that contain very low available phosphorus (P) is an important research objective for improving livestock production in the tropics. The objective of this study was to dete...

Enlace original: https://cgspace.cgiar.org/handle/10568/88133

Investigación en Agricultura
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Louw-Gaume, Anna E. ,  Schweizer, Noel ,  Rao, Idupulapati M. ,  Gaume, Alain J. ,  Frossard, Emmanuel ,  [Temporal differences in plant growth and root exudation of two Brachiaria grasses in response to low phosphorus supply = Diferencias en el crecimiento y exudaciones radiculares de dos especies de Brachiaria en respuesta a baja disponibilidad de fósforo] ,  Temporal differences in plant growth and root exudation of two Brachiaria grasses in response to low phosphorus supply = Diferencias en el crecimiento y exudaciones radiculares de dos especies de Brachiaria en respuesta a baja disponibilidad de fósforo
Journal Article 2018-06

Autor: Ndungu, S.M. Messmer, M.M. Ziegle, D. Thuita, Moses N. Vanlauwe, Bernard Frossard, Emmanuel Thonar, C.

Cowpea N2 fixation and yield can be enhanced by selecting competitive and efficient indigenous rhizobia. Strains from contrasting agro-ecologies of Kilifi and Mbeere (Kenya) were screened. Two pot experiments were established consisting of 13 Bradyrhizobium strains; experiment 1 (11 Mbeere + CBA ...

Enlace original: https://cgspace.cgiar.org/handle/10568/92850

Investigación en Agricultura
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Ndungu, S.M. ,  Messmer, M.M. ,  Ziegle, D. ,  Thuita, Moses N. ,  Vanlauwe, Bernard ,  Frossard, Emmanuel ,  Thonar, C. ,  [Evaluation of MALDI-TOF mass spectrometry for the competitiveness analysis of selected indigenous cowpea (Vigna unguiculata L. Walp.) Bradyrhizobium strains from Kenya] ,  Evaluation of MALDI-TOF mass spectrometry for the competitiveness analysis of selected indigenous cowpea (Vigna unguiculata L. Walp.) Bradyrhizobium strains from Kenya
Journal Article 2018-07-01

Autor: Ndungu, S.M. Messmer, M.M. Ziegler, D. Gamper, H.A. Mészáros, E. Thuita, Moses N. Vanlauwe, Bernard Frossard, Emmanuel Thonar, C.

Cowpea (Vigna unguiculata L. Walp.) is an important African food legume suitable for dry regions. It is the main legume in two contrasting agro-ecological regions of Kenya as an important component of crop rotations because of its relative tolerance to unpredictable drought events. This study was...

Enlace original: https://cgspace.cgiar.org/handle/10568/92900

Investigación en Agricultura
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Ndungu, S.M. ,  Messmer, M.M. ,  Ziegler, D. ,  Gamper, H.A. ,  Mészáros, E. ,  Thuita, Moses N. ,  Vanlauwe, Bernard ,  Frossard, Emmanuel ,  Thonar, C. ,  [Cowpea (Vigna unguiculata L. Walp) hosts several widespread bradyrhizobial root nodule symbionts across contrasting agro-ecological production areas in Kenya] ,  Cowpea (Vigna unguiculata L. Walp) hosts several widespread bradyrhizobial root nodule symbionts across contrasting agro-ecological production areas in Kenya
Journal Article 2011

Autor: Douxchamps, Sabine Frossard, Emmanuel Bernasconi, S Hoek, Rein van der Schmidt, A Rao, Idupulapati M. Oberson, Astrid

The integration of multipurpose legumes into low-input tropical agricultural systems is needed because they are a nitrogen (N) input through symbiotic fixation. The drought-tolerant cover legume canavalia (Canavalia brasiliensis) has been introduced for use either as forage or as a green manure i...

Enlace original: https://cgspace.cgiar.org/handle/10568/43894

Investigación en Agricultura
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Douxchamps, Sabine ,  Frossard, Emmanuel ,  Bernasconi, S ,  Hoek, Rein van der ,  Schmidt, A ,  Rao, Idupulapati M. ,  Oberson, Astrid ,  [Nitrogen recoveries from organic amendments in crop and soil assessed by isotope techniques under tropical field conditions] ,  Nitrogen recoveries from organic amendments in crop and soil assessed by isotope techniques under tropical field conditions
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
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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 2012-12-30

Autor: Douxchamps, Sabine Frossard, Emmanuel Uehlinger, N. Rao, Idupulapati M. Hoek, Rein van der Mena Urbina, Martin A. Schmidt, A Oberson, Astrid

Multipurpose legumes provide a wide range of benefits to smallholder production systems in the tropics. The degree of system improvement after legume introduction depends largely on legume biomass production, which in turn depends on the legumes’ adaptation to environmental conditions. For Canava...

Enlace original: https://cgspace.cgiar.org/handle/10568/33527

Investigación en Agricultura
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Douxchamps, Sabine ,  Frossard, Emmanuel ,  Uehlinger, N. ,  Rao, Idupulapati M. ,  Hoek, Rein van der ,  Mena Urbina, Martin A. ,  Schmidt, A ,  Oberson, Astrid ,  [Identifying factors limiting legume biomass production in a heterogeneous on-farm environment] ,  Identifying factors limiting legume biomass production in a heterogeneous on-farm environment
Journal Article 2010

Autor: Louw-Gaume, A Rao, Idupulapati M. Gaume, A Frossard, Emmanuel

Brachiaria forage grasses are widely used for livestock production in the tropics. Signalgrass (Brachiaria decumbens cv. Basilisk, CIAT 606) is better adapted to low phosphorus (P) soils than ruzigrass (B. ruziziensis cv. Kennedy, CIAT 654), but the physiological basis of differences in low-P ada...

Enlace original: https://cgspace.cgiar.org/handle/10568/43118

Investigación en Agricultura
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Louw-Gaume, A ,  Rao, Idupulapati M. ,  Gaume, A ,  Frossard, Emmanuel ,  [A comparative study on plant growth and root plasticity responses of two Brachiaria forage grasses grown in nutrient solution at low and high phosphorus supply] ,  A comparative study on plant growth and root plasticity responses of two Brachiaria forage grasses grown in nutrient solution at low and high phosphorus supply

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