STUDIES ON INTEGRATED WEED MANAGEMENT IN ONION (Allium cepa L.)

Abstract

The present investigation entitled “Studies on integrated weed management in onion (Allium cepa L.)” was carried out at the Vegetable Research Farm, Department of Vegetable Science, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, (HP) during rabi, 2012-13 and 2013-14 with the objective to study the effect of different weed management practices on growth and yield of onion cv. Palam Lohit. In this study, 12 treatment viz. preplant application of pendimethalin, preplant application of oxyfluorfen, hand weeding at 40,60 and 90 DAT, weed free plot, preplant application of pendimethalin + hand weeding at 40 DAT, preplant application of pendimethalin + hand weeding at 60 DAT, preplant application of oxyfluorfen + hand weeding at 40 DAT, preplant application of oxyfluorfen + hand weeding at 60 DAT, mulching with black polythene, mulching with pine needles, mulching with local grass and Unweeded check were compared in a Randomized Complete Block Design (RCBD) having three replications with a plot size of 3 х 1.5 m and a plant spacing of 30 cm х 10 cm. All the treatments were found significant for different characters like maximum value for number of leaves per plant, leaf length, Average weight of bulb (132.37) in this study. Use of black polythene mulch, therefore was found most effective for most of the character studied.