Mecanismo de acción del herbicida Profoxydim en el cultivo de arroz (Oryza sativa, L.)

Rice cultivation (Oryza sativa, L.) is a very important economic and food sector for the vast majority of countries in the world, particularly for poor and moderately developed countries such as Ecuador and other tropical countries. One of the main difficulties in growing a crop such as rice is other unwanted plants or weeds, whose extensive and large presence affects the cultivation areas both in spatial and temporal terms. Herbicides are used to eliminate weeds while protecting the main crop. An example of this type of herbicide is Profoxydim, the subject of this research, which is widely used in rice fields because it is selective and controls a broad spectrum of weeds. The objectives of this study focused on defining what weeds are, their impact on crops, the recognition of the main weeds, the action of herbicides for control, particularly the mode of action of Profoxydim. The results obtained, their discussion, conclusions and recommendations confirm the physical-chemical characteristics, mode of action, and efficacy of the product in controlling a broad spectrum of weeds that are usually present when planting rice.

Rice cultivation (Oryza sativa, L.) is a very important economic and food sector for the vast majority of countries in the world, particularly for poor and moderately developed countries such as Ecuador and other tropical countries. One of the main difficulties in growing a crop such as rice is other unwanted plants or weeds, whose extensive and large presence affects the cultivation areas both in spatial and temporal terms. Herbicides are used to eliminate weeds while protecting the main crop. An example of this type of herbicide is Profoxydim, the subject of this research, which is widely used in rice fields because it is selective and controls a broad spectrum of weeds. The objectives of this study focused on defining what weeds are, their impact on crops, the recognition of the main weeds, the action of herbicides for control, particularly the mode of action of Profoxydim. The results obtained, their discussion, conclusions and recommendations confirm the physical-chemical characteristics, mode of action, and efficacy of the product in controlling a broad spectrum of weeds that are usually present when planting rice.

El cultivo del arroz (Oryza sativa, L.) Es un rubro económico y de alimentación muy importante para la gran mayoría de los países del mundo, particularmente para los países pobres y medianamente desarrollados como Ecuador y otros países tropicales. Una de las principales dificultades para sacar adelante un cultivo como el arroz son otras plantas no deseadas o malezas, cuya presencia extensiva y en gran cantidad afectan las zonas de cultivo tanto en términos espaciales como temporales. Los herbicidas son utilizados para eliminar malezas mientras protegen el cultivo principal. Un ejemplo de este tipo de herbicida es el Profoxydim, objeto de la presente investigación, que por ser selectivo y controlar un amplio espectro de malezas es muy utilizado en los campos de cultivo del arroz. Los objetivos del presente estudio se centraron en definir lo que son las malezas, su afectación a los cultivos, el reconocimiento de las principales malezas, la acción de los herbicidas para el control, particularmente el modo de actuación de Profoxydim. Los resultados obtenidos, la discusión de estos, las conclusiones y recomendaciones confirman las características físico-químicas, modo de acción, y eficacia del producto en el control de un amplio espectro de malezas que ordinariamente se hacen presentes al momento de sembrar arroz.