Efecto del corte y niveles de fertilización de Biol en el rendimientos de materia seca y producción de semilla del pasto blando (Nasella sp) con riego complementario en la estación experimental Choquenaira
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Abstract
El presente trabajo se ejecutó en la Estación Experimental Choquenaira, situada en el Altiplano Norte en La Paz-Bolivia. El material genético empleado fue el pasto blando Nasella sp., pasto nativo que generalmente crece a las faldas de las colinas de la zona. Como complemento al déficit hídrico del Altiplano se utilizó riego complementario aplicado por el método de riego por aspersión, para ello se determinó el balance hídrico con el programa CROPWAT. Cada unidad experimental tenía 12 plantas de las cuales 6 plantas fueron cortadas. Paralelamente, se realizó la instalación del sistema de riego por aspersión. El diseño experimental fue un arreglo factorial con dos factores: efecto del corte (con corte y sin corte) y diferentes niveles de biol bovino (testigo, 15%, 50%, 70% y 100%). Las variables de respuesta fueron: altura de planta, número de inflorescencias, materia seca, rendimiento de semilla. En el rendimiento de semilla se encontraron diferencias significativas en los factores de niveles de biol bovino. El mayor rendimiento fue 29.007 g m-² para el tratamiento de 50% (3.5 litros de biol + 3.5 l de agua) con el efecto sin corte frente al testigo. La variable que influyó en el rendimiento de semilla fue el número de inflorescencias.
This work was performed at the Experimental Station Choquenaira, located in Northem Altiplano of Bolivia. The genetic material used was soft grass Nasella sp. a native species that usually grows in the foothills of the Bolivian Altiplano. To complement the water déficit supplemental irrigation applied by the sprinkler method, and the determination of the water balance was performed with support of the CROPWAT program. Each experimental unit had 12 plants of which 6 plants were mowed. Parallel installation of sprinkler irrigation system was performed. The experimental design used in this study was a factorial design with two factors: the effect of the cut (with cut and uncut) and different levels of bovine biol (control, 15%, 50%, 70% and 100%).The response variables were plant height, number of inflorescences, dry matter, and seed yield. In seed yield significant differences in the levels of bovine factors biol were found. The yield was 29,007 g m-² with the treatment of 50% biol (3.5 l of biol + 3.5 l of water) with the maximum effect of on cutting against the control.
This work was performed at the Experimental Station Choquenaira, located in Northem Altiplano of Bolivia. The genetic material used was soft grass Nasella sp. a native species that usually grows in the foothills of the Bolivian Altiplano. To complement the water déficit supplemental irrigation applied by the sprinkler method, and the determination of the water balance was performed with support of the CROPWAT program. Each experimental unit had 12 plants of which 6 plants were mowed. Parallel installation of sprinkler irrigation system was performed. The experimental design used in this study was a factorial design with two factors: the effect of the cut (with cut and uncut) and different levels of bovine biol (control, 15%, 50%, 70% and 100%).The response variables were plant height, number of inflorescences, dry matter, and seed yield. In seed yield significant differences in the levels of bovine factors biol were found. The yield was 29,007 g m-² with the treatment of 50% biol (3.5 l of biol + 3.5 l of water) with the maximum effect of on cutting against the control.
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Vol. 3, No. 1