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Optimizing Weed Control by Integrating the Best Herbicide Rate and Bio-agents in Wheat Field
Objectives: Study of reducing the rates of a new generation herbicide verdict in combination with some biocontrol components under the field condition of Moscow to suppress Avena fatua and broad-leaved weeds and consequently maintaining satisfactory crop yield under intensive technology. Method/Statistical analysis: Field experiment were laid out to appraise the efficacy of reduced concentrations of a post-emergence herbicide verdict in combination with biocontrol agent to suppress three major weeds (Chenopodium album, Avena fatua and Capsella bursa-pastoris) in wheat field under the condition of Non-chernozem zone, Moscow region. Findings: Shown labeled concentration 0.3 kg/ha-1 + bio-agents was effective in reducing total weed populations. This study showed that a desirable weed reduction in wheat was achieved when intermediate herbicide rate 0.3 kg/ha-1 and bio-agents were used, that was comparable to the result which achieved for registered verdict dose as 0.5 kg/ha-1. Hence, despite the higher weed reduction efficacy was obtained with herbicide in registered label dose plus biocontrol agent, but the differences were not significant in comparison with below herbicide dose 0.3 kg/ha-1. Meanwhile, the best energy output (90.3 GDj/ha-1), agricultural efficiency (19.9%) and wheat grain yield 7.80 t/ha-1 were achieved when reduced rate 0.3 kg/ha-1 combined to bio-agent were applied. Application /Improvement: Cutting of herbicide dosage without compromising grain yield can cause to less environmental pollution and lower production costs, besides, can reduce weed population desirably.
Agronomical Efficiency, Energy Output, Reduced Herbicide Rate, Weed, Wheat Yield
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