Integrating Irrigation, Tillage, and Herbicides for Weed Control in Dry Bean

Field trials were conducted from 2010 through 2012 to evaluate the integration of three factors: overhead irrigation after planting great northern dry bean; three methods of seedbed preparation: no-tillage, one or two diskings; and eight weed control treatments on dry bean development and weed contr...

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Bibliographic Details
Published in:Weed technology 2014-07, Vol.28 (3), p.479-485
Main Authors: Wilson, Robert G, Sbatella, Gustavo M
Format: Article
Language:English
Subjects:
bentazon
conventional tillage
corn
Disking
Dried beans
dry beans
dry edible bean
Field discing
field experimentation
flumioxazin
glyphosate
halosulfuron
Herbicides
imazamox
Irrigation
metolachlor
No tillage
overhead irrigation
pendimethalin
pesticide application
Phaseolus vulgaris
plant density
Planting
planting date
Plants
production technology
reduced tillage
seed yield
seedbed preparation
soil
soil crusting
Soil crusts
Tillage
Weed control
WEED MANAGEMENT—MAJOR CROPS
weeds
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Summary:Field trials were conducted from 2010 through 2012 to evaluate the integration of three factors: overhead irrigation after planting great northern dry bean; three methods of seedbed preparation: no-tillage, one or two diskings; and eight weed control treatments on dry bean development and weed control. The previous crop each year was corn. Overhead irrigation with 13 mm of water immediately after herbicide application and planting in early June did not improve or reduce herbicide efficacy but where herbicides were not utilized, irrigation increased weed emergence. Soil crusting increased in 2 of 3 yr when soil was disked at a 20-cm depth before planting. Crop injury from herbicides applied PRE increased when soil crusting occurred. No tillage before planting reduced crop injury from herbicides in 2010 and 2011 and weed density in 2012. Dry bean injury was minimal from herbicides applied PRE except for flumioxazin, which reduced crop density in 2011 and 2012. Imazamox plus bentazon applied POST caused early-season dry bean injury in 2 of 3 yr and resulted in a reduction in crop seed yield compared to dimethenamid-P or halosulfuron applied PRE. As producers move away from intensive tillage before planting to reduced tillage or no-tillage production systems, the results of this experiment show that dimethenamid-P, halosulfuron, pendimethalin, and S-metolachlor can be utilized PRE to provide acceptable weed control and crop selectivity. Although flumioxazin applied PRE reduced plant density, Great Northern dry bean yields were not affected by the loss of plant stand. Nomenclature: Bentazon; dimethenamid-P; flumioxazin; glyphosate; halosulfuron; imazamox; S-metolachlor; dry bean, Phaseolus vulgaris L.; ‘Orion' and ‘GN3138′. Se realizaron estudios de campo desde 2010 hasta 2012 para evaluar la integración de tres factores: riego por aspersión después de la siembra de frijol común Great Northern; tres métodos de preparación de la cama de siembra: labranza cero, una, o dos pases de disco; y ocho tratamientos de control de malezas, sobre el desarrollo del frijol y el control de malezas. En cada año, el cultivo previo fue maíz. El riego por aspersión con 13 mm de agua, inmediatamente después de la aplicación de herbicidas y la siembra al inicio de Junio, no mejoró ni redujo la eficacia de los herbicidas, pero donde no se utilizó herbicidas, el riego aumentó la emergencia de malezas. La formación de costras (compactación) en la superficie del suelo aumentó en 2 de 3
ISSN:0890-037X
1550-2740
DOI:10.1614/WT-D-13-00173.1