Response of Weed Management Practices on Growth, Yields and Economics of Rabi Onion (Allium cepa L.)

The present investigation entitled, “Studies on weed management in Rabi onion (Allium cepa L.)” was carried out at the Vegetable Research Farm of Chandra Shekhar Azad University Agriculture & Technology, Kanpur (U.P.) during season 2021with objectives relative efficacy herbicides and hand weeding control onion. experiment laid Randomized Block Design for nine treatments with three replications. It observed that growth attributes viz., plant height (80.25 cm), leaves/plant (10.82), fresh weight bulb (32.65 gm) dry (17.51 were significantly higher (T2) over rest treatments, respectively. yields polar diameter (56.70 mm), Equatorial (68.58 mm) total (5.97 cm) more recorded T2, while minimum control. bulbs yield (27.03 t / ha). TSS (15.43) highest free check remaining all Among herbicidal treatment pre post emergence application T8. number weeds (m2) matter (g/ m2) noticed most effective as it less count 0.68/m2 1.25g followed by 3.63/m2 3.45g, maximum efficiency (93.3%) index (0.00%) compared to gross monetary returns (Rs.3,24,360.00) among T8 Rs 3,15,240/ ha net statistically Rs. 2,21,648.00. Whereas, benefit cost ratio (1:3.71) T7 T6, investigation.