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Efficacy of the fungicide epoxiconazol applied by center pivot irrigation system on dry bean

The fungigation of bean crops have been used in Brazil by the agriculturists since the beginning of the 1980's. However, few surveys have been conducted to evaluate the efficiency of this technique. Thus, the objectives of this work were to evaluate the efficacy of the fungicide epoxiconazol, applied through irrigation water, for the control of diseases in bean crops, under conventional and no-till systems; as well as to study the influence of depth of applied water on the fungigation efficiency. The fungicide epoxiconazol was applied on the bean crops, under conventional and no-till systems, by a center pivot system with different depths of applied water (3, 5 and 7 mm), and disease severity was evaluated for each test. The efficiency of the fungicide application by a conventional system (compression knapsack sprayer) was also evaluated. The results obtained allow us to affirm that the fungicide epoxiconazol, applied by a center pivot system, decreased the severity of bean angular leaf spot and bean alternaria leaf spot; and the depth of applied water by fungigation did not influence the efficacy of the fungicide epoxiconazol.

chemigation; application technology; bean diseases; Phaseolus vulgaris L


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