Comportamiento del potasio en un vertisol de la zona plana del Valle del Cauca y su relación con el rendimiento y la calidad de la vid
Cargando...
Autores
Tipo de contenido
Editor
Document language:
Español
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Documentos PDF
Resumen
Para conocer el comportamiento del K+ en un vertisol de la zona plana del Valle del Cauca plantado con vid que presenta limitaciones para su disponibilidad por baja conductividad hidráulica 0,65 cm.hora-1, presencia de arcillas 2:1 y elaporte del agua de riego de Mg+2 en mayor proporción que el Ca+2 y K+, se procedió a evaluar su respuesta a diferentes dosis de sulfato de potasio (K2SO4), aplicadas al suelo, sobre el contenido de Ca+2, Mg+2 y K+ y las relaciones Ca/K, Mg/K, Ca+Mg/K y Ca/Mg solubles e intercambiables en el suelo y los presentes en el tejido foliar de la vid, también en el rendimiento y calidad de la uva Isabella (Vitis labrusca) durante un ciclo de producción. El diseño utilizado fue BCA con 3 repeticiones y 4 tratamientos: 0, 100, 150 y 225 gr.planta-1 de K2SO4, prueba de Duncan para comparar las medias, análisis gráfico y correlación entre las variables. Previamente se hicieron análisis de mineralogía de arcillas, fisicoquímicos del suelo y del agua de riego proveniente del rio Bolo y durante el proceso se monitoreó el K+ en floración y envero de la uva Isabella. Se encontró que la adición de K2SO4 en dosis entre 100 y 225 gr/planta mejora la disponibilidad absoluta de K+ y relativa respecto a Ca+2 y Mg+2 en el suelo, generando que en el tejido foliar también el K+ aumente su presencia respecto a Ca+2 y Mg+2 y el rendimiento manifieste una marcada tendencia a incrementarse a pesar de prevalecer la deficiencia de K+ en época de floración.
// //Abstract. To understand the behavior of K+ in vertisol flat Cauca Valley area planted with vines which has limitations for its availability for low hydraulic conductivity 0.65 cm.hora-1, the presence of 2:1 clays and water supply irrigation of Mg+2 in greater proportion than the Ca+2 and K+, we proceeded to assess their response to different doses of potassium sulphate (K2SO4), applied to the soil, the content of Ca+2, Mg+2 and K+ and Ca/K, Mg/K, Ca+Mg/K and Ca/Mg soluble and exchangeable soil and present in the leaf tissue of the vine, also on the yield and quality of the Isabella grape Mg ratios (Vitis labrusca) during a production cycle. BCA design was used with 3 replications and 4 treatments: 0, 100, 150 and 225 gr.plant-1 K2SO4, Duncan test to compare means, graphical analysis and correlation among variables. Earlier analysis of clay mineralogy, physicochemical soil and irrigation water from the river and Bolo. Were during the K+ was monitored flowering and ripening of the grape Isabella It was found that the addition of K2SO4 in doses between 100 and 225 gr/plant improves availability of K+ absolute and relative regarding Mg+2 and Ca+2 into the soil, creating the leaf tissue in the K+ also increase its presence respect Ca+2 and Mg+2 and performance revealed a marked tendency to increase in spite of prevailing K+ deficiency in flowering time.
// //Abstract. To understand the behavior of K+ in vertisol flat Cauca Valley area planted with vines which has limitations for its availability for low hydraulic conductivity 0.65 cm.hora-1, the presence of 2:1 clays and water supply irrigation of Mg+2 in greater proportion than the Ca+2 and K+, we proceeded to assess their response to different doses of potassium sulphate (K2SO4), applied to the soil, the content of Ca+2, Mg+2 and K+ and Ca/K, Mg/K, Ca+Mg/K and Ca/Mg soluble and exchangeable soil and present in the leaf tissue of the vine, also on the yield and quality of the Isabella grape Mg ratios (Vitis labrusca) during a production cycle. BCA design was used with 3 replications and 4 treatments: 0, 100, 150 and 225 gr.plant-1 K2SO4, Duncan test to compare means, graphical analysis and correlation among variables. Earlier analysis of clay mineralogy, physicochemical soil and irrigation water from the river and Bolo. Were during the K+ was monitored flowering and ripening of the grape Isabella It was found that the addition of K2SO4 in doses between 100 and 225 gr/plant improves availability of K+ absolute and relative regarding Mg+2 and Ca+2 into the soil, creating the leaf tissue in the K+ also increase its presence respect Ca+2 and Mg+2 and performance revealed a marked tendency to increase in spite of prevailing K+ deficiency in flowering time.