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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

Fourteen types of physical structures produced on the soil surface by ecological engineers were sampled in the Eastern Plains of Colombia. The invertebrates creating these structures were identified. Some physical (aggregate size and stability, and bulk density) and chemical (C, N, and P contents...


Decaëns, ThibaudGalvis, JHAmézquita Collazos, Edgar[Properties of the structures created by ecosystem engineers on the soil surface of a Colombian savanna]Properties of the structures created by ecosystem engineers on the soil surface of a Colombian savanna
Singh, Bal RamRao, Idupulapati M.Barrios, EdmundoAmézquita Collazos, Edgar[Potential of tillage, agropastoral, and planted fallow systems in low-fertility tropical soils in Latin America]Potential of tillage, agropastoral, and planted fallow systems in low-fertility tropical soils in Latin America

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

It is widely believed that tropical soils (mainly Oxisols) have excellent physical characteristics such as high infiltration rates, high permeability of water, good and stable soil structure and that consequently, they can support mechanized agriculture. However in the Eastern Plains (Llanos Orie...


Amézquita Collazos, EdgarThomas, Richard J.Rao, Idupulapati M.Molina Lopez, DLHoyos Garcés, Phanor[Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia]Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia
Decaëns, ThibaudGalvis, JHAmézquita Collazos, Edgar[Propiedades de las estructuras construidas por los ingenieros del ecosistema en la superficie del suelo de una sabana colombiana]Propiedades de las estructuras construidas por los ingenieros del ecosistema en la superficie del suelo de una sabana colombiana

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