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Trejo Tercero, M.T.Barrios, E.Turcios, WRBarreto, HJ[Método participativo para identificar y clasificar indicadores locales de calidad del suelo a nivel de microcuenca]Método participativo para identificar y clasificar indicadores locales de calidad del suelo a nivel de microcuenca
Jiménez Jaén, J.J.Barrios, E.Ayarza, Miguel AngelLavelle, Patrick M.Decaëns, Thibaud[Harnessing the biological plows of the soil: soil macrofauna communities]Harnessing the biological plows of the soil: soil macrofauna communities
Rao, Idupulapati M.Barrios, E.Oberson, AstridAyarza, Miguel AngelFriesen, Dennis K.[Opportunities for increasing the efficiency of phosphorus use in tropical agroecosystems]Opportunities for increasing the efficiency of phosphorus use in tropical agroecosystems
Ayarza, Miguel AngelBeltrán Giraldo, Jorge AlonsoBarrios, E.[Farm nutrient recycling through double purpose live barriers]Farm nutrient recycling through double purpose live barriers

Soil organic matter (SOM) and phosphorus (P) fractions play a key role in sustaining the productivity of acid-savanna oxisols and are greatly influenced by tillage practices. In 1993, a long-term experiment on sustainable crop rotation and ley farming systems was initiated on a Colombian acid-sav...


Basamba, T.A.Barrios, E.Amézquita Collazos, EdgarRao, Idupulapati M.Singh, B.R.[Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions]Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions

Soil fertility replenishment is a critical factor that many farmers in the tropical American hillsides have to cope with to increase food crop production. The effect of three planted fallow systems (Calliandra houstoniana-CAL, Indigofera zollingeriana-IND, Tithonia diversifolia-TTH) and a crop ro...


Basamba, T.A.Barrios, E.Singh, B.R.Rao, Idupulapati M.[Impact of planted fallows and a crop rotation on nitrogen mineralization and phosphorus and organic matter fractions on a Colombian volcanic-ash soil]Impact of planted fallows and a crop rotation on nitrogen mineralization and phosphorus and organic matter fractions on a Colombian volcanic-ash soil

The increasing attention paid to local soil knowledge in recent years is the result of a greater recognition that the knowledge of people who have been interacting with their soils for long time can offer many insights about the sustainable management of tropical soils. This paper describes two a...


Barrios, E.Trejo Tercero, M.T.[Implications of local soil knowledge for integrated soil management in Latin America]Implications of local soil knowledge for integrated soil management in Latin America
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?

Near infrared reflectance spectroscopy (NIRS) analysis was used to discriminate soils of different agroecosystems in Colombia, with different contents and qualities of organic matter, chemical, and biological properties. Correlations were sought between absorbance in wavelength classes as determ...


Velásquez, E.Lavelle, Patrick M.Barrios, E.Joffre, RReversat, F[Evaluating soil quality in tropical agroecosystems of Colombia using NIRS]Evaluating soil quality in tropical agroecosystems of Colombia using NIRS

Lack of synchronization between N released from prunings applied to the soil as green manures and crop uptake as well as optimization of protein digestibility for ruminants, remain major research objectives for the selection of multipurpose tree and shrub legumes (MPT) for mixed smallholder syste...


Tscherning, KLascano, Carlos E.Barrios, E.Schultze-Kraft, RainerPeters, Michael[The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen]The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen

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