Fertilización con nitrógeno líquido y granulado en la etapa de crecimiento del sorgo (Sorghum bicolor L.)
Archivos
Fecha
1986
Tipo
artículo original
Autores
López A., Eliseo A.
Jiménez M., Kenneth
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ISSN de la revista
Título del volumen
Editor
Universidad de Costa Rica
Resumen
En Marañonal de Esparza, Puntarenas, se evaluó el efecto de tres soluciones nitrogenadas y un fertilizante granulado, usados en la segunda aplicación de nitrógeno (Etapa II de desarrollo) en el cultivo de sorgo. Además se evaluó el comportamiento de dichos tratamientos bajo dos métodos de control de malezas (control químico y manual). El tratamiento: solución nitrogenada 2 (7,9% de nitrógeno en forma nítrica, 7,9% de nitrógeno en forma amoniacal y 16,3% de nitrégeno en forma u reica), 80 kg N/ha + herbicida presentó el mayor rendimiento (4.4679, 59 kg/ha) y el mayor beneficio (₡8,05 /parcela 4,32 m2). No se observaron diferencias significativas entre las dosis usadas. Los tratamientos con aplicación de herbicidas fueron superiores a aquellos con dehierba manual.
An assay was conducted to study the effect of different nitrogen solutions and solid nitrogen fertilizer and weed control methods on the yield and other agronomic traits of sorghum , in Esparza, Costa Rica. The sorghum was planted in June and harvested in October, 1984. Three nitrogen solutions and one solid nitrogen fertilizer at the rates of 80, 200 and 120 kg N/ha and two weed control methods (chemically and mechanicl) were used. The nitrogen solution number 2 (7,9% nitrate nitrogen 7.9% ammonium nitrogen and 16.3% ureic nitrogen), 80 kg N/ha + herbicide showed the highest yield (4467.59 kg/ha) and the highest return (₡8,05/4,32 m2) The were no significant differences among doses. Chemical weed control was best over hand weeding
An assay was conducted to study the effect of different nitrogen solutions and solid nitrogen fertilizer and weed control methods on the yield and other agronomic traits of sorghum , in Esparza, Costa Rica. The sorghum was planted in June and harvested in October, 1984. Three nitrogen solutions and one solid nitrogen fertilizer at the rates of 80, 200 and 120 kg N/ha and two weed control methods (chemically and mechanicl) were used. The nitrogen solution number 2 (7,9% nitrate nitrogen 7.9% ammonium nitrogen and 16.3% ureic nitrogen), 80 kg N/ha + herbicide showed the highest yield (4467.59 kg/ha) and the highest return (₡8,05/4,32 m2) The were no significant differences among doses. Chemical weed control was best over hand weeding