Herbicide selection for weed control in cassava (Manihot esculenta Crantz) in Bolivar, Colombia

Cassava is the most important tuberous root for food security in the Department of Bolívar (Colombia); however, inefficient weed management during early growth stages has reduced productivity, generating profit losses for farmers in this region. Therefore, this research aimed to select herbicides fo...

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Autores:
Tipo de recurso:
http://purl.org/coar/resource_type/c_6623
Fecha de publicación:
2018
Institución:
Universidad Pedagógica y Tecnológica de Colombia
Repositorio:
RiUPTC: Repositorio Institucional UPTC
Idioma:
spa
OAI Identifier:
oai:repositorio.uptc.edu.co:001/16832
Acceso en línea:
https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7895
https://repositorio.uptc.edu.co/handle/001/16832
Palabra clave:
Crop protection
Chemical control
Herbicide mixtures
Mode of action
Interference
Toxicity
Growth
Crop protection
Weeds
Protección de cultivos
Control químico
Mezclas de herbicidas
Modos de acción
Interferencia
Toxicidad
Crecimiento
Protección de cultivos
Arvenses
Rights
License
Copyright (c) 2018 Revista Colombiana de Ciencias Hortícolas
Description
Summary:Cassava is the most important tuberous root for food security in the Department of Bolívar (Colombia); however, inefficient weed management during early growth stages has reduced productivity, generating profit losses for farmers in this region. Therefore, this research aimed to select herbicides for weed control. At Carmen de Bolívar de Corpoica, a completely randomized block design was used with three repetitions, evaluating the herbicide mixtures linuron + pendimethalin, oxadiazon + diuron and metolachlor + atrazine in pre-emergence, and glufosinate ammonium, haloxyfop-p-ethoxyethyl and fluaxifop-p-butyl in post-emergence, along with a control treatment. The evaluated variables weed control efficiency, survival, degree of phytotoxicity, height, stem diameter and yield of fresh roots in cassava plants showed that the mixture metolachlor + atrazine applied in pre-emergence had the highest efficiency for weed control and cassava crop selectivity, obtaining a yield increase of 4.34 t ha-1, as compared to the manual control treatment. The results indicated the effectiveness of herbicides within integrated weed management in cassava crops on the Colombian Caribbean Coast.