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ABSTRACT

Direct-seeded rice (DSR) is an emerging resource-saving rice production system alternative to puddled transplanted rice (TPR). However, yield variability due to severe weed infestations remains the major concern in DSR. Weeds outsmart the less competitive rice seedlings under direct seeding situation. Hence, initial weed control in DSR till canopy closure is indispensable for realizing a steady yield. Weed control using herbicides has become the most popular and practical way of managing weeds in time, particularly in large areas where manual laborer is scarce and wage rates are high. Selection of appropriate herbicides based on target weeds and stages of weeds/crop along with recommended rates and accurate application techniques can facilitate a viable way of controlling weeds in DSR that may help in promoting this system. This article attempts to provide an insight to specific herbicides available, their rates, application time, safe handlings, and correct application methods crucial for controlling weeds effectively in DSR.

Keywords: Calibration of sprayer, direct-seeded rice, herbicide mixture, post-emergence herbicides, sequential application.

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Herbicide options for cost-effective weed control and sustainable rice production in direct-seeded rice_compressed (1).pdf