Evaluación de dos fuentes de calcio sobre la producción de la pastura Panicum maximum cv. Mombaza.
Fecha
2017-12
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad EARTH
Resumen
El presente estudio fue realizado en la Finca Pecuaria Integrada, de la Universidad EARTH, ubicada en Guácimo, Costa Rica, durante los meses de febrero a agosto del año 2017; con el objetivo de evaluar dos fuentes de calcio sobre la producción radicular, biomasa y análisis foliar de la pastura Panicum maximum cv. Mombaza, así como del calcio en el suelo de los distintos tratamientos. Para el desarrollo del experimento se establecieron tres repeticiones por cada tratamiento de acuerdo al contenido de calcio (Ca), siendo el tratamiento uno (T1) el testigo, el tratamiento dos (T2) una aplicación de nitrato de calcio (Ca(NO2)3) a 6.47 Mg/ha y el tratamiento tres (T3) una aplicación de sulfato de calcio (CaSO4) a 6.12 Mg/ha. Las variables a evaluar fueron analizadas con análisis de la varianza en el programa R. La fertilización realizada con las dos distintas enmiendas a base de calcio (Ca(NO2)3 y CaSO4), bajo las condiciones del presente estudio no mostró tener una mejora significativa estadísticamente en las variables de Ca en el suelo, desarrollo radicular y producción de biomasa, sin embargo en el análisis foliar si hubo una diferencia significativa a favor del Ca(NO2)3 con respecto al CaSO4 y el testigo, siendo los dos nutrientes con mejor translocación foliar en este tratamiento el N y el Ca. También hubo una diferencia significativa a favor de utilizar enmiendas con Ca sobre la concentración de Ca presente en el suelo entre el antes y después de la aplicación, sin encontrarse diferencias significativas entre los dos distintos tipos de fertilizantes a base de Ca utilizados.
This experiment conducted tests of distinct applications of fertilizers in the Integrated Animal Production Farm at EARTH University between February and August of 2017. This study´s objective is to evaluate the impact of two different sources of calcium on root production, biomass and nutrient content of leaf blades on the production of the pasture grass Panicum maximum cv. Mombaza. Three repetitions of each treatment were completed with a control treatment without application, an application of a calcium nitrate fertilizer (Ca(NO2)3) at 6.47 Mg/ha, and a calcium sulfate fertilizer (CaSO4) at 6.12 Mg/ha. No significant difference in the levels of calcium in the soil, root development or biomass production was found, however, in the leaf nutrient analysis there were significant differences where the calcium nitrate fertilizer produced more yield in respect to the calcium sulfate fertilizer and control treatments demonstrating that two nutrients, nitrogen and calcium were taken up in higher amounts. Further, there were a significant difference between the amount of calcium present in the soil before and after the experiment in the fertilizer treatments compared to the control treatment. Of the two fertilizers investigated the calcium nitrate fertilizer would be the best option to apply in dairy pastures in order to improve biomass production.
This experiment conducted tests of distinct applications of fertilizers in the Integrated Animal Production Farm at EARTH University between February and August of 2017. This study´s objective is to evaluate the impact of two different sources of calcium on root production, biomass and nutrient content of leaf blades on the production of the pasture grass Panicum maximum cv. Mombaza. Three repetitions of each treatment were completed with a control treatment without application, an application of a calcium nitrate fertilizer (Ca(NO2)3) at 6.47 Mg/ha, and a calcium sulfate fertilizer (CaSO4) at 6.12 Mg/ha. No significant difference in the levels of calcium in the soil, root development or biomass production was found, however, in the leaf nutrient analysis there were significant differences where the calcium nitrate fertilizer produced more yield in respect to the calcium sulfate fertilizer and control treatments demonstrating that two nutrients, nitrogen and calcium were taken up in higher amounts. Further, there were a significant difference between the amount of calcium present in the soil before and after the experiment in the fertilizer treatments compared to the control treatment. Of the two fertilizers investigated the calcium nitrate fertilizer would be the best option to apply in dairy pastures in order to improve biomass production.
Descripción
Palabras clave
PASTIZALES, PANICUM MAXIMUM, ABONOS CALCICOS, EARTH, BIOMASA, SULFATO DE CALCIO