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      Efecto de Leucaena leucocephala en la estructura y contenido de materia orgánica del suelo de dos unidades ganaderas de Villa Clara, Cuba Translated title: Effect of Leucaena leucocephala on structure and content of dry matter in the soil of two cattle rearing units in Villa Clara, Cuba

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          Abstract

          Para determinar el efecto de Leucaena leucocephala en la estructura y el contenido de materia orgánica en el suelo de dos unidades ganaderas de Villa Clara se desarrollaron dos experimentos. Uno fue en la Estación Experimental Agrícola de la Universidad Central de las Villas y otro, en la vaquería “El Mamey” del Instituto Tecnológico Agropecuario “Victoria de Santa Clara”, ambos en suelos pardo mullido carbonatado. En el primero se establecieron cuatro tratamientos: tratamiento1 (pasto natural), tratamiento 2 (Leucaena leucocephala, con cinco años de establecimiento), tratamiento 3 (Leucaena leucocephala, con cuatro años de establecida), tratamiento 4 (cultivo permanente de plátano). En el segundo experimento se desarrollaron tres tratamientos: tratamiento 1 (Leucaena leucocephala, con tres años de edad en sistema de pastoreo rotacional), tratamiento 2 (Leucaena leucocephala, con ocho años de edad en sistema de pastoreo racional), tratamiento 3 (pasto natural). Se tomaron muestras para el análisis de la materia orgánica e indicadores de la estructura (factor de estructura, agregados estables, permeabilidad, límites de plasticidad) a profundidades de 0-10, 10-20 y 20-40 cm. El diseño experimental fue de bloques completos al azar. Los resultados indican que la leucaena influye a largo plazo en el contenido de materia orgánica, como árbol o integrada al sistema silvopastoril (curva de ajuste R² 0.82-0.92), así como en el factor de estructura, agregados estables y permeabilidad, con valores superiores a 65 % (buenos), 70 % (excelentes) y 2.00 log 10k (excelentes), respectivamente.

          Translated abstract

          In order to determine the effect of Leucaena leucocephala on the structure and content of organic matter in the soil of two cattle rearing units in Villa Clara, two experiments were performed. One was developed in the Estación Experimental Agrícola de la Universidad Central de las Villas and the other, in the dairy farm “El Mamey” from the Instituto Tecnológico Agropecuario “Victoria de Santa Clara”, both in fluffy brown carbonated soil. In the first, four treatments were established: treatment 1 (natural grass), treatment 2 (Leucaena leucocephala, with five years of establishment), treatment 3 (Leucaena leucocephala, with four years of establishment), and treatment 4 (permanent banana crop). In the second experiment, three treatments were developed: treatment 1 (Leucaena leucocephala, with three years in a rotational grazing system), treatment 2 (Leucaena leucocephala, with eight years in a rational system), treatment 3 (natural grass). Samples were taken for the analysis of organic matter and structure indicators (structure factor, stable aggregates, permeability, plasticity limits) at 0-10, 10-20 and 20-40 cm deep. The experimental designed was completely random blocks design. Results indicate that Leucaena influence, at a long term, on the content of organic matter, as a tree or integrated to the silvopastoral system (adjustment curve R² 0.82-0.92), as well as on the structure factor, stable aggregates and permeability, with values superior to 65 % (good), 70 % (excellent) and 2.00 log 10k (excellent), respectively.

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          Los sistemas silvopastoriles y su contribución al medio ambiente

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            Silvopastoral Systems Enhance Soil Quality in Grasslands of Colombia

            In the tropical drylands of Colombia, the soils subjected to traditional systems of livestock production are severely degraded and depleted of plant nutrients. Multistrata silvopastoral systems are viable alternatives to improve livestock production; however, it is unknown whether these systems can reduce the negative environmental impacts of traditional systems on soil quality. The objective of this study was to evaluate the effects of 13-year-old multistrata silvopastoral systems on soil quality parameters in degraded soils of the Sinu River Valley, Colombia. The results show that the trees in the silvopastoral systems increased or maintained soil pH values and nutrient availability (phosphorus, potassium, and calcium) with respect to the pastures with only grasses. The effects were significantly controlled by the types of plant species, particularly Guazuma ulmifolia and Cassia grandis .
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              Silvopastoral systems with traditional management in southeastern Mexico: a prototype of livestock agroforestry for cleaner production

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                Author and article information

                Journal
                cjas
                Cuban Journal of Agricultural Science
                Cuban J. Agric. Sci.
                Editorial del Instituto de Ciencia Animal (Mayabeque, , Cuba )
                0864-0408
                2079-3480
                September 2017
                : 51
                : 3
                : 371-380
                Affiliations
                [02] orgnameUniversidad Central de las Villas orgdiv1Facultad de Ciencias Agropecuarias Cuba
                [01] Copiapó orgnameUniversidad de Atacama Chile
                Article
                S2079-34802017000300011 S2079-3480(17)05100300011
                38ef373c-79d9-4ab3-aa2d-ed3a33616ab4

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 12 November 2017
                : 05 November 2015
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 34, Pages: 10
                Product

                SciELO Cuba

                Categories
                ARTÍCULO ORIGINAL

                organic matter,structure,legume,soil management,materia orgánica,estructura,leguminosa,manejo de suelo

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