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Amézquita Collazos, EdgarRao, Idupulapati M.Rivera, M.Corrales, I.I.Bernal Riobo, Jaime Humberto[Sistemas agropastoriles: un enfoque integrado para el manejo sostenible de oxisoles de los Llanos Orientales de Colombia]Sistemas agropastoriles: un enfoque integrado para el manejo sostenible de oxisoles de los Llanos Orientales de Colombia

the Quesungual Slash and Mulch Agroforestry System (QSMAS) on the dynamics of soil nitrogen (N) and phosphorus (P), and their impact on QSMAS’ productivity in southwestern Honduras, Central America. Five land use systems were compared: (l) Slash-and-burn traditional system; (2, 3 and 4) QSMAS of ...


Castro, AracelyMenjívar, Juan CarlosBarrios, EdmundoAsakawa, NeuzaBorrero, GonzaloGarcía, EdwinRao, Idupulapati M.[Dinámica del nitrógeno y el fósforo del suelo bajo tres sistemas de uso de la tierra en laderas de Honduras]Dinámica del nitrógeno y el fósforo del suelo bajo tres sistemas de uso de la tierra en laderas de Honduras

Rao, Idupulapati M.Arango, JacoboIshitani, ManabuPeters, MichaelMiles, John W.Tohme, Joseph M.Castro, AracelyCardoso Arango, Juan AndrésWorthington, MargaretSelvaraj, Michael GomezHoek, Rein van derSchultze-Kraft, RainerRincón, ÁlvaroPlazas, CamiloMendoza, ReynaldoCuchillo-Hilario, MarioTapasco, JeimarMartínez, JesúsHyman, GlennMoreta, DaniloMena Urbina, Martin A.Karwat, HannesNúñez, JonathanSubbaraoa, Guntur V.Cadisch, Georg[Strategic management for forage production and mitigation of environmental effects: Development of Brachiaria grasses to inhibit nitrification in soil]Strategic management for forage production and mitigation of environmental effects: Development of Brachiaria grasses to inhibit nitrification in soil

Background and Aims: The forage grass Brachiaria humidicola (Bh) has been shown to reduce soil microbial nitrification. However, it is not known if biological nitrification inhibition (BNI) also has an effect on nitrogen (N) cycling during cultivation of subsequent crops. Therefore, the objective...


Karwat, HannesMoreta, DaniloArango, JacoboNúñez, JonathanRao, Idupulapati M.Rincón, ÁlvaroRasche, FrankCadisch, Georg[Residual effect of BNI by Brachiaria humidicola pasture on nitrogen recovery and grain yield of subsequent maize]Residual effect of BNI by Brachiaria humidicola pasture on nitrogen recovery and grain yield of subsequent maize

Aluminum is usually regarded as the determining factor for plant growth in acid soils and nutrient deficiencies are often additional growth-limiting factors in tropical acid soils. Taking into account the potential interactions between Al toxicity and nutrient deficiencies, the present study inve...


Akhter, AKhan, S.H.Hiroaki, ETawaraya, KRao, Idupulapati M.Wenzl, PeterIshikawa, S.Wagatsuma, Tadao[Greater contribution of low-nutrient tolerance to sorghum and maize growth under combined stress conditions with high aluminum and low nutrients in solution culture simulating the nutrient status of tropical acid soils]Greater contribution of low-nutrient tolerance to sorghum and maize growth under combined stress conditions with high aluminum and low nutrients in solution culture simulating the nutrient status of tropical acid 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
Basamba, T.A.Barrios, EdmundoSingh, B.R.Rao, Idupulapati M.[Influence of planted fallows and manure application on soil quality and maize yields on a Colombian volcanic ash soil]Influence of planted fallows and manure application on soil quality and maize yields on a Colombian volcanic ash soil
Rivera, M.Amézquita Collazos, EdgarRao, Idupulapati M.Corrales, I.I.Chávez, Luis F.[Establecimiento de sistemas agropastoriles y su efecto en el rendimiento de cultivos en suelos ácidos de sabanas]Establecimiento de sistemas agropastoriles y su efecto en el rendimiento de cultivos en suelos ácidos de sabanas
Basamba, T.A.Barrios, E.Amézquita Collazos, EdgarRao, Idupulapati M.Singh, B.R.[Efecto de sistemas de labranza en el rendimiento de maíz en un oxisol de la sabana colombiana: fraccionamiento de materia orgánica y fósforo del suelo]Efecto de sistemas de labranza en el rendimiento de maíz en un oxisol de la sabana colombiana: fraccionamiento de materia orgánica y fósforo del suelo

Crop simulation models have been used successfully to evaluate many systems and the impact of change on these systems, e.g. for climatic risk and the use of alternative management options, including the use of nitrogen fertilisers. However, for low input systems in tropical and subtropical region...


Delve, Robert J.Probert, MECobo Borrero, Juan G.Ricaurte Oyola, José JaumerRivera Pena, MBarrios, E.Rao, Idupulapati M.[Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types]Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types

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