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Poor drainage is found on about 11.3% of agricultural land in Latin America where physiography promotes flooding, high groundwater tables, or stagnant surface water (waterlogging). Waterlogging drastically reduces oxygen diffusion into the soil causing hypoxia which is the main limitation that re...


Cardoso Arango, Juan AndrésJiménez, JuanRincón, Joisse DayanaGuevara, Edward D.Hoek, Rein van derJarvis, AndyPeters, MichaelMiles, John W.Ayarza, Miguel AngelCajas, SocorroRincón, ÁlvaroMateus, HenryQuiceno, JaimeBarragán, WilsonLascano, Carlos E.Argel M., Pedro J.Mena Urbina, Martin A.Hertentains, LuisRao, Idupulapati M.[Advances in improving tolerance to waterlogging in Brachiaria grasses]Advances in improving tolerance to waterlogging in Brachiaria grasses

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

The effect of land use on the availability of nitrogen (N) was studied by separating total N into a labile and a stable fraction by oxidation and extraction of labile N with KMnO4. The nitrogen management index (NMI) was calculated following the method of Blair et al. (1995) for the carbon manage...


Westerhof, RVilela, LAyarza, Miguel AngelZech, W.[Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil]Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil

Differently managed oxisols from Central Brazil were studied using a sequential P fractionation procedure because the effects of land use on the distribution of P forms in these soils are barely known. Therefore levels of labile and recalcitrant P forms in the natural Cerrado savanna were compare...


Neufeldt, HenrySilva, J.E. daAyarza, Miguel AngelZech, W.[Land-use effects on phosphorus fractions in cerrado oxisols]Land-use effects on phosphorus fractions in cerrado oxisols
Castro, A.Rivera Peña, MFerreira, OscarPavon, JGarcía, E.Amézquita Collazos, EdgarAyarza, Miguel AngelBarrios, E.Rondón, Marco AntonioPauli, N.Baltodano, Maria EugeniaMendoza, B.Welchez, L.A.Johnson, Nancy L.Cook, Simon E.Rao, Idupulapati M.[Adaptation to climate change: is the Quesungual system an option for smallholders in dry hillsides agroecosystems?]Adaptation to climate change: is the Quesungual system an option for smallholders in dry hillsides agroecosystems?
Castro, A.Asakawa, N.Borrero, GonzaloRao, Idupulapati M.Menjivar, JCBarrios, E.Amézquita Collazos, EdgarGarcía, E.Ayarza, Miguel Angel[Dynamics of nitrogen and phosphorus in Quensungual slash and mulch agroforestry system]Dynamics of nitrogen and phosphorus in Quensungual slash and mulch agroforestry system
Castro, A.Rivera, M.Ferreira, OscarPavon, J.García, E.Amézquita Collazos, EdgarAyarza, Miguel AngelBarrios, E.Rondón, Marco AntonioPauli, N.Baltodano, Maria EugeniaMendoza, B.Welchez, L.A.Cook, Simon E.Rubiano, J.Johnson, Nancy L.Rao, Idupulapati M.[Is the Quesungual System an option for smallholders in dry hillside agroecosystems?]Is the Quesungual System an option for smallholders in dry hillside agroecosystems?
Welchez, L.A.Ayarza, Miguel AngelAmézquita Collazos, EdgarBarrios, E.Rondón, Marco AntonioCastro, A.Rivera, M.Rao, Idupulapati M.Pavón, J.Ferreira, OscarValladares, D.Sánchez, N.[No-burn agricultural zones on Honduran hillsides: Better harvests air quality and water availability by way of improved land management]No-burn agricultural zones on Honduran hillsides: Better harvests air quality and water availability by way of improved land management
Castro, A.Rivera, M.Ferreira, OscarPavon, J.García, E.Amézquita Collazos, EdgarAyarza, Miguel AngelBarrios, E.Rondón, Marco AntonioPauli, N.Baltodano, Maria EugeniaMendoza, B.Welchez, L.A.Johnson, Nancy L.Rubiano, J.Cook, Simon E.Rao, Idupulapati M.[Quesungual Slash & Mulch Agroforestry System (QSMAS): Improving crop water productivity food security and resource quality in the sub-humid tropics]Quesungual Slash & Mulch Agroforestry System (QSMAS): Improving crop water productivity food security and resource quality in the sub-humid tropics
Pauli, N.Barrios, E.Oberthür, ThomasConacher, A.Ayarza, Miguel AngelWelchez, L.A.[The Effects of the Quesungual agroforestry systems of Western Honduras soil macrofauna]The Effects of the Quesungual agroforestry systems of Western Honduras soil macrofauna

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