Translator Disclaimer
1 January 2014 Sweet Corn Response and Weed Control to Saflufenacil plus Dimethenamid-P in Organic Soils
Dennis C. Odero, Alan L. Wright, Jose V. Fernandez
Author Affiliations +
Abstract

There are limited PRE herbicide options available to provide residual weed control in sweet corn grown on organic soils in the Everglades Agricultural Area (EAA). Field studies were established to determine the efficacy of PRE applied saflufenacil dimethenamid-P at six rates ranging from 10 88 to 319 2802 g ai ha−1 on weed control and sweet corn tolerance on organic soils in the EAA in 2011 and 2012. Saflufenacil dimethenamid-P is a premix recently labeled for PRE weed control in field corn at 50 438 to 90 788 g ha−1 depending on soil texture. There was no phytotoxic effect of PRE applied saflufenacil dimethenamid-P on sweet corn. At 42 d after treatment, common lambsquarters, common purslane, and spiny amaranth were controlled 90% with saflufenacil dimethenamid-P at 58 508, 71 622, and 58 512 g ha−1, respectively. Sweet corn yield at 95% of the weed-free yield was estimated to be obtained at 69 606 g ha−1 of saflufenacil dimethenamid-P. Our results show that saflufenacil dimethenamid-P at 69 606 to 71 622 g ha−1 controlled three common weeds and maintained acceptable sweet corn yield. Labeled rates of saflufenacil dimethenamid-P for field corn on mineral soils were adequate for weed control in sweet corn on organic soils.

Nomenclature: Dimethenamid-P; saflufenacil; common lambsquarters, Chenopodium album L. CHEAL; common purslane, Portulaca oleracea L. POROL; spiny amaranth, Amaranthus spinosus L. AMASP; sweet corn, Zea mays L.

Existen pocas opciones de herbicidas PRE disponibles para el control residual de malezas en maíz dulce producido en suelos orgánicos en el Área Agrícola de los Everglades (EAA). Se establecieron experimentos de campo para determinar la eficacia de saflufenacil dimethenamid-P aplicados PRE a seis dosis variando de 10 88 a 319 2802 g ai ha−1 para el control de malezas y la tolerancia del maíz dulce en suelos orgánicos en el EAA en 2011 y 2012. Saflufenacil dimethenamid-P es una premezcla recientemente registrada para el control PRE de malezas en maíz para grano con dosis de 50 438 a 90 788 g ha−1 dependiendo de la textura del suelo. No hubo efecto fitotóxico de saflufenacil dimethenamid-P aplicado PRE en maíz dulce. A 42 d después del tratamiento, Chenopodium album, Portulaca oleracea, y Amaranthus spinosus fueron controlados en 90% con saflufenacil dimethenamid-P a 58 508, 71 622, y 58 512 g ha−1, respectivamente. El rendimiento del maíz dulce a 95% del rendimiento del testigo libre de malezas se estimó que se pudo obtener con 69 606 g ha−1 de saflufenacil dimethenamid-P. Nuestros resultados muestran que saflufenacil dimethenamid-P de 69 606 a 71 622 g ha−1 controló tres de las malezas más comunes y mantuvo rendimientos aceptables en el maíz dulce. Las dosis en la etiqueta de saflufenacil dimethenamid-P para maíz para grano en suelos minerales fueron adecuadas para el control de malezas en maíz dulce en suelos orgánicos.

Dennis C. Odero, Alan L. Wright, and Jose V. Fernandez "Sweet Corn Response and Weed Control to Saflufenacil plus Dimethenamid-P in Organic Soils," Weed Technology 28(1), 281-285, (1 January 2014). https://doi.org/10.1614/WT-D-13-00097.1
Received: 29 May 2013; Accepted: 1 September 2013; Published: 1 January 2014
JOURNAL ARTICLE
5 PAGES


Share
SHARE
KEYWORDS
Organic soils
residual weed control
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top