STUDIES ON WEED MANAGEMENT IN GARLIC (Allium sativumL.)
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Date
2016
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled “Studies on weed management in garlic (Allium sativum 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 season 2014-15 with the objective to study the effect of different weed management practices on growth and yield of garlic cv. Agrifound Parvati and economics of production. In this study, 12 treatments viz. preplant application of pendimethalin, preplant application of oxyfluorfen, hand weeding at 30, 60 and 90 DAP, stale seed bed method, preplant application of pendimethalin + hand weeding at 30 DAP, preplant application of pendimethalin + hand weeding at 60 DAP, preplant application of oxyfluorfen + hand weeding at 30 DAP, preplant application of oxyfluorfen + hand weeding at 60 DAP, mulching with black polythene, pine needles and local grass and unweeded check were compared in a Randomized Complete Block Design (RCBD) having three replications with a plot size of (3 х 2) m2 and a plant spacing of 20 cm х 10 cm. The observations were recorded on plant height (cm), number of leaves per plant, number of bulbs per plot, average weight of bulb (g), number of cloves bulb-1, clove size (cm2), bulb yield plot-1 (kg) and ha-1 (q), weed density (m-2), weed intensity (% m-2), dry weight of weeds (g m-2), N, P and K uptake by weeds (kg ha-1), weed control efficiency (%), visual phyto-toxic effects of herbicides, total soluble solids (0Brix), total microbial count (cfu g-1 of soil), available N, P, K (kg ha-1), physico-chemical properties of soil (pH, EC (dSm1) and OC (%)). T9 (Mulching with black polythene) was rated as the best treatment for majority of characters like plant height (cm), number of leaves per plant, number of bulbs plot-1 (288.33), average weight of bulb (50.62 g), number of cloves bulb-1 (13.41), clove size (5.05 cm2), bulb yield plot-1 (14.60 kg) and ha-1 (243.25 q), weed control efficiency (90.30 %), total soluble solids (28.79 0Brix), available N (364.13), P (47.81), K (345.29) kg ha-1, physico-chemical properties of soil pH (7.02), EC (0.69 dSm-1) and OC (1.25 %) followed by T7. Gross income (Rs. 4,86,500.00 ha-1), net return (Rs. 2,80,701.50 ha-1) and B:C ratio (1.36) was also maximum in T9. Therefore, on the basis of present study, it is concluded that application of black polythene mulch can be suggested cost effective method for enhanced growth, yield and quality garlic production in mid hills of Himachal Pradesh.
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