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Louw-Gaume, AGaume, ARao, Idupulapati M.Frossard, Emmanuel[Adaptation of Brachiaria species to low-P soils]Adaptation of Brachiaria species to low-P soils

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...


Douxchamps, SabineFrossard, EmmanuelBernasconi, SHoek, Rein van derSchmidt, ARao, 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

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...


Oberson, AstridFriesen, Dennis K.Rao, Idupulapati M.Buhler, SFrossard, 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

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...


Buehler, S.Oberson, AstridRao, 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
Oberson, AstridPypers, PieterBünemann, Else K.Frossard, Emmanuel[Management impacts on biological phosphorus cycling in cropped soils]Management impacts on biological phosphorus cycling in cropped soils

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...


Douxchamps, SabineFrossard, EmmanuelUehlinger, N.Rao, Idupulapati M.Hoek, Rein van derMena Urbina, Martin A.Schmidt, AOberson, 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
Quintero, MarcelaEstrada, R.D.Holmann, Federico J.Rao, Idupulapati M.Martens, S.Peters, MichaelHoek, Rein van derMena Urbina, Martin A.Douxchamps, SabineOberson, AstridFrossard, Emmanuel[Realizing the benefits of cover crop legumes in smallholder crop-livestock systems of the hillsides of Central America : Trade-off analysis of using legumes for soil enhancing or as animal feed resource]Realizing the benefits of cover crop legumes in smallholder crop-livestock systems of the hillsides of Central America : Trade-off analysis of using legumes for soil enhancing or as animal feed resource

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...


Louw-Gaume, ARao, Idupulapati M.Gaume, AFrossard, 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
Humbert, FDouxchamps, SabineHoek, W. van derBenavídez, AMena Urbina, Martin A.Schmidt, ARao, Idupulapati M.Bernasconi, SFrossard, EmmanuelOberson, Astrid[Impact of Canavalia brasiliensis on nitrogen budgets in smallholder crop-livestock farms of the Nicaraguan hillsides]Impact of Canavalia brasiliensis on nitrogen budgets in smallholder crop-livestock farms of the Nicaraguan hillsides

Louw-Gaume, AnnabéSchweizer, NoelRao, Idupulapati M.Gaume, Alain J.Frossard, Emmanuel[The response specificity of oxalic acid exudation and acid phosphatase secretion with the internal plant P status in Brachiaria grasses]The response specificity of oxalic acid exudation and acid phosphatase secretion with the internal plant P status in Brachiaria grasses

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