Efectividad de la utilización de herbicidas en las labores de viveros con envases de polietileno
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Abstract
La investigación se realizó en la Estación Experimental de Itabo, en la provincia de Matanzas, en canteros donde se obtuvieron postura de pino y cedro en envases. Se probó el efecto del tratamiento presiembra con los productos dalapon + 2, 4-D, ametrina +2, 4-D y bromacil, en diferentes dosis. Se evaluaron los indicadores: germinación, fototoxicidad y control de la vegetación indeseable. Ninguno de estos tramientos influyó en la germinación y con relación a la fototoxicidad el menos fitotóxico fue el que contenía la combinación de dalapon + 2, 4-D en dosis de 15 kg/ha y 2,5 L/ ha, respectivamente. El mejor control sobre las plantas indeseables se obtuvo con los tratamientos de bromacil en dosis de 2,5 kg/ha de ia y ametrina + 2, 4- D en dosis de 2,5 kg/ha y 2,5 L/ha respectivamente. Con relación a la especie Cyperus rotundus L., el mejor control se obtuvo con bromacil en dosis de 2,5 kg/ha.
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