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In the Brazilian savanna, there is a risk that soil fertility of pastures declines to a level below that of the native savanna because of low fertilizer application. To evaluate biophysical pasture sustainability we compared regularly fertilized productive pasture (PP), degraded pasture fertilize...


Lilienfein, JWilcke, W.Vilela, LAyarza, Miguel AngelCarmo Lima, S. doZech, W.[Soil fertility under native cerrado and pasture in the Brazilian savanna]Soil fertility under native cerrado and pasture in the Brazilian savanna
Ayarza, Miguel AngelBeltrán Giraldo, Jorge AlonsoBarrios, E.[Improved fallows : an alternative for rapid restoration of degraded soils]Improved fallows : an alternative for rapid restoration of degraded soils
Amede, TilahunAmézquita Collazos, EdgarAshby, J.A.Ayarza, Miguel AngelBarrios, EdmundoBationo, B. AndréBeebe, Stephen E.Bellotti, Anthony C.Blair, Matthew W.Delve, Robert J.Fujisaka, SamHoweler, Reinhardt H.Johnson, Nancy L.Kaaria, Susan K.Kelemu, SegenetKerridge, Peter C.Kirkby, Roger A.Lascano, Carlos E.Lefroy, R.D.B.Mahuku, George S.Murwira, Herbert K.Oberthür, ThomasPachico, Douglas H.Peters, MichaelRamisch, Joshua J.Rao, Idupulapati M.Rondón, Marco AntonioSanginga, Pascal C.Swift, M.Vanlauwe, Bernard[Biological nitrogen fixation: A key input to integrated soil fertility management in the tropics]Biological nitrogen fixation: A key input to integrated soil fertility management in the tropics
Rao, Idupulapati M.Ayarza, Miguel AngelThomas, Richard J.Fisher, Myles J.Lascano, Carlos E.Borrero, V.[Adaptation responses of tropical grass-legume associations to acid soils]Adaptation responses of tropical grass-legume associations to acid soils
Lopes, AAyarza, Miguel AngelThomas, Richard J.[Sistemas agropastoriles en las sabanas de América Tropical: lecciones del desarrollo agrícola de los Cerrados de Brasil]Sistemas agropastoriles en las sabanas de América Tropical: lecciones del desarrollo agrícola de los Cerrados de Brasil
Rao, Idupulapati M.Ayarza, Miguel AngelGarcía, Ramiro[Adaptive attributes of tropical forage species to acid soils I. Differences in plant growth, nutrient acquisition and nutrient utilization among C4 grasses and C3 legumes]Adaptive attributes of tropical forage species to acid soils I. Differences in plant growth, nutrient acquisition and nutrient utilization among C4 grasses and C3 legumes

De acuerdo con las demográficas actuales, se prevé que la población en América tropical se duplicara en los próximos 25 años; como consecuencia, habrá mayor demanda de carne y leche, la cual podrá satisfacerse solo aumentando la producción agropecuaria. Estos factores aumentaran la presión sobre ...


Ayarza, Miguel AngelRao, Idupulapati M.Thomas, Richard J.[Reciclaje de nutrimentos en pastizales tropicales de suelos ácidos]Reciclaje de nutrimentos en pastizales tropicales de suelos ácidos

Soil carbon distribution with depth, stable carbon isotope ratios in soil organic matter and their changes as a consequence of the presence of legume were studied in three 12-year-old tropical pastures (grass alone Brachiaria decumbens (C4), legume alone Pueraria phaseoloides (C3) and grass + l...


Rao, Idupulapati M.Ayarza, Miguel AngelThomas, Richard J.[The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures]The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures
Lopes, AAyarza, Miguel AngelThomas, Richard J.[Managing and conserving acid savanna soils for agricultural development: lessons from the Brazilian Cerrados]Managing and conserving acid savanna soils for agricultural development: lessons from the Brazilian Cerrados

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