Integrated Weed Management in Turmeric (Curcuma longa)
Journal of Agriculture and Ecology Research International(2024)
Abstract
The experiment was conducted at Regional Spices Research Centre, BARI, Magura during the cropping season of 2021-22 and 2022-23 to find out the best management practices for controlling the weed of turmeric. The experiment was laid out in a randomized complete block design with three replications. Nine different treatments and a control plot were studied. Significant differences regarding yield and yield attributes were observed among different treatments. The results revealed that Cyperus rotundus was the major weed constituting 51% of the total weed flora. All treatments brought significant reduction in the count of weeds over control. The lowest number of these weeds was recorded in glyphosate @ 10 ml/L+ 1 HW at 70 DAP + straw mulch @ 5 t/ha treated plot. The highest fresh yield (64.63 t/ha in 2021-22 and 58.28 t/ha in 2022-23) was found from treatment T5 (glyphosate @ 10 ml/L+ 1 HW at 70 DAP + straw mulch @ 5 t/ha) and the lowest yield (20.16 kg/ha in 2021-22 and 20.07 in 2022-23) was found from control plot T10. Maximum weed control efficiency (91.97%) was found from treatment T5 (glyphosate @ 10 ml/L+ 1 HW at 70 DAP + straw mulch @ 5 t/ha). Benefit cost ratio (BCR) was highest under glyphosate @ 10 ml/L+ 1 HW at 70 DAP + straw mulch @ 5 t/ha (3.75) followed by T6 (Paraquat @ 10 ml/L+ 1 HW (70 DAP) + straw mulch 5 t/ha (3.33).
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