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INTEGRATED WEED MANAGEMENT PRACTICES IN GROUNDNUT (Arachis hypogea L.) CULTIVATION IN RABI SEASON...

During the Rabi season of 2020-21, a field experiment was conducted at the Regional Agricultural Research Station, BARI, Rahmatpur, Barishal to determine the most successful and cost-effective weed management approach for groundnut cultivation. T1= Control, T2= One hand weeding at 20 DAE, T3= One hand weeding at 20 DAE + Hand weeding at 40 DAE (W4), T4= BARI mechanical weeder at 20 DAE, T5= One hand weeding at 20 DAE + BARI mechanical weeder at 40 DAE, and T6= Spraying of Weednil at 20 DAE@ 1.5 ml/L were the treatments of the experiment. Except for plant height and forage yield, there are substantial variances in other metrics. Treatment T3 (23.67Nos.) had the largest plant population/m2, while treatment T1 had the lowest (14.00Nos.). The treatment T1 had the highest number of weed drives (211.67 Nos.) while the treatment T3 had the lowest number of weeds (49.67 Nos.). The treatment T5 (56.13cm) had the highest plant height, whereas T6 had the lowest (46.07cm). The largest number of pods per plant was found in T3 (26.16 Nos.) while the lowest amount was found in T1 (14.23Nos.). The largest number of seeds per plant was found in T5 (2.00 Nos.) and the lowest number was found in T1 (1.77Nos.). T3 (514.4g) had the highest 1000 seed weight while T1 had the lowest (455.745g). T3 had the highest seed weight/plot (2156.5g) and T1 had the lowest (673.7g). The maximum yield per hectare was observed in T3 (1797.1kg), whereas the lowest yield was recorded in T1 (561.4 kg). The largest forage yield was reported in T4 (11.04 kg), whereas the lowest was found in T5 (7.47 kg). In terms of weed dry weight, T1 (553.56 g) had the greatest and T5 had the lowest (173.14 g). T3 treatment was thus recommended as the most environmentally friendly and effective weed management strategy for Rabi season groundnut production in Bangladesh's Barishal regions.



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