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Journal Article 2001

Autor: Phiri, S Barrios, E. Rao, Idupulapati M. Singh, B.R.

Planted tree or shrub fallows can help increase the fertility of degraded tropical soils. We investigated the effects of planted fallows of Indigofera (IND), Calliandra (CAL), and Tithonia (TTH); a natural, unmanaged fallow (NAT); and a maize/bean rotation (ROT) on the dynamics and partitioning o...

Enlace original: https://cgspace.cgiar.org/handle/10568/43253

Investigación en Agricultura
Enlace permanente
Phiri, S ,  Barrios, E. ,  Rao, Idupulapati M. ,  Singh, B.R. ,  [Changes in soil organic matter and phosphorus fractions under planted fallows and a crop rotation system on a Colombian volcanic-ash soil] ,  Changes in soil organic matter and phosphorus fractions under planted fallows and a crop rotation system on a Colombian volcanic-ash soil
Journal Article 2006

Autor: Basamba, T.A. Barrios, E. Amézquita Collazos, Edgar Rao, Idupulapati M. Singh, B.R.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/44189

Investigación en Agricultura
Enlace permanente
Basamba, T.A. ,  Barrios, E. ,  Amézquita Collazos, Edgar ,  Rao, 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
Journal Article 2005

Autor: Velásquez, E. Lavelle, Patrick M. Barrios, E. Joffre, R Reversat, F

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43423

Investigación en Agricultura
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Velásquez, E. ,  Lavelle, Patrick M. ,  Barrios, E. ,  Joffre, R ,  Reversat, F ,  [Evaluating soil quality in tropical agroecosystems of Colombia using NIRS] ,  Evaluating soil quality in tropical agroecosystems of Colombia using NIRS
Journal Article 2005

Autor: Vanlauwe, Bernard Gachengo, CN Shepherd, Keith D. Barrios, E. Cadisch, Georg Palm, C.A.

Organic resources (ORs) are essential inputs in tropical farming systems and their decomposition dynamics are related to their quality. A Decision Support System (DSS) for organic N management has been proposed earlier that subdivides ORs in four classes depending on their N, lignin, and soluble ...

Enlace original: https://cgspace.cgiar.org/handle/10568/43627

Investigación en Agricultura
Enlace permanente
Vanlauwe, Bernard ,  Gachengo, CN ,  Shepherd, Keith D. ,  Barrios, E. ,  Cadisch, Georg ,  Palm, C.A. ,  [Laboratory validation of a resource quality-based conceptual framework for organic matter management] ,  Laboratory validation of a resource quality-based conceptual framework for organic matter management

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