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Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2005 → WEED MANAGEMENT IN IRRIGATED AND DRYLAND CROPPING SYSTEMS AND WEED CONTROL PROGRAMS FOR BIODIESEL FUEL PRODUCTION

United States Department of Agriculture (USDA) 2005

WEED MANAGEMENT IN IRRIGATED AND DRYLAND CROPPING SYSTEMS AND WEED CONTROL PROGRAMS FOR BIODIESEL FUEL PRODUCTION

Weed Irrigation Dryland Biodiesel

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : WEED MANAGEMENT IN IRRIGATED AND DRYLAND CROPPING SYSTEMS AND WEED CONTROL PROGRAMS FOR BIODIESEL FUEL PRODUCTION

Identification : MONB00654

Pays : Etats Unis

Durée : Oct 1, 2005 à Sep 30, 2010

Mots clés : sugar beets camelina weed control herbicides biodiesel

Partenaire : MONTANA STATE UNIVERSITY BOZEMAN,MT 59717

Objectifs
1. Evaluate weed control programs in herbicide-resistant sugar beets and to quantify if there is an economic advantage to adopting this technology over standard weed control programs currently utilized in conventional sugar beet hybrids. 2. Determine efficacious weed control programs for crops grown for biodiesel production. Primary emphasis will be directed toward establishing an effective herbicide program for weed control in a wheat-camelina-fallow rotation. 3. Evaluate integrated weed management strategies with registered and experimental herbicides for the irrigated and dryland production systems of south-central Montana.

Descriptif
All experiments will be conducted at the Southern Agricultural Research Center in Huntley, Montana. Objective 1. The experiment will consist of a total of 18 treatments with four replications applied to a glyphosate-resistant sugar beet variety. The experimental design will be a split-plot RCB with the main-plot factors being either glyphosate or conventional herbicide programs. Each herbicide program will contain a PRE treatment of ethofumesate alone, and a hand-weeded and nontreated control. In the glyphosate-based herbicide program, glyphosate will be applied 1, 2, 3, or 4 times with or without a PRE treatment of ethofumesate. In the conventional herbicide program, desmedipham plus phenmedipham plus triflusulfuron plus clopyralid will be applied 1, 2, 3, or 4 times with or without a PRE treatment of ethofumesate. Weed control will be evaluated throughout the growing season. Weed control, sugar beet yield and quality will be subjected to analysis of variance, and significance of main effects and interactions will be determined. Means will be separated using Fishers protected LSD test at the 5% level of probability. Economic returns will be calculated in a manner similar to Kniss et al. 2004. Objective 2. Experiments will be conducted in two non-irrigated locations. The first location will be planted to wheat and will have a variety of registered herbicides applied for weed control. In the second year of this study, camelina will be planted with a no-till drill into the standing wheat stubble perpendicular to the plots where herbicides were applied the previous year. Camelina tolerance to herbicide residues will be evaluated. In the second location, camelina will be planted into a fallow location and a variety of herbicides that have potential for weed control in this crop will be applied and weed control and crop phytotoxicity will be evaluated. Experiments will be designed in a RCB with four replications. Weed control will be evaluated visually. Crop tolerance will be evaluated visually and by collecting crop yield data. Weed control and camelina yield will be subjected to analysis of variance and means will be separated using Fishers protected LSD test at the 5% level of probability. Greenhouse experiments will be used to help identify potential herbicides for weed control in biodiesel crops that presently have limited herbicide options, such as camelina and safflower. In these experiments, seed will be planted into 10-cm pots containing commercial potting media and thinned to 1 to 3 plants per pot. Greenhouse experiments will be conducted in a factorial design. Factors within the design will typically include herbicide, herbicide rate, and crop species. Phytotoxicity will be visually evaluated, and biomass reduction will be determined 60 days after application. Objective 3. Experiments will evaluate new weed control strategies and herbicide efficacy with registered and experimental herbicides in wheat, barley, sugar beet, corn, dry beans, and alfalfa. Weed control will be visually estimated or by sampling weed biomass. Crop tolerance will be visually estimated and by collecting crop yield data

Présentation : USDA

Page publiée le 9 octobre 2015, mise à jour le 2 novembre 2017