STUDIES ON INTEGRATED WEED MANAGEMENT IN TOMATO (Solanum lycopersicum L.)
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Date
2017-12
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled, “Studies on Integrated Weed Management in Tomato
(Solanum lycopersicum L.)” was carried out at Vegetable Research Farm, Department of Vegetable
Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) in the kharif
season 2017 with the objective to study the effect of different weed management practices on growth,
yield, quality and economics of tomato cv. ‘Solan Lalima’. In this study, 12 treatments viz. pre plant
application of pendimethalin, pre plant application of alachlor, post emergence application of paraquat
at 30, 45 and 60 DAT, hand weeding at 30, 45 and 60 DAT, pre plant application of pendimethalin +
Hand weeding at 60 DAT, pre plant application of alachlor + hand weeding at 60 DAT, pre plant
application of pendimethalin + post emergence application of paraquat at 60 DAT, pre plant
application of alachlor + post emergence application of paraquat at 60 DAT, mulching with black
polythene, mulching with crop residue, weed free plot and unweeded check were compared in
Randomized Complete Block Design with three replications with a plot size of 2.70 m × 1.80 m and a
plant spacing of 90 cm × 30 cm. The results revealed that treatment T9 (Mulching with black
polythene) recorded maximum number of fruits per plant (30.84), number of pickings (8.00), harvest
duration (40.67 days), plant height (127.11 cm), fruit weight (83.33 g), fruit size (26.88 cm2), fruit
yield per plot (46.20 kg), fruit yield per hectare (760.49 q) and weed control efficiency (93.59%). The
same treatment also resulted in highest net return (Rs 583366.80) and B: C ratio (3.30). Minimum
number of weeds (13.45 m-2), fresh and dry weight of weeds (41.66 g m-2 and 13.45 g m-2) were again
recorded in black polythene mulched plots. Use of black polythene mulch, therefore was found most
effective in controlling weeds and was rated as the best treatment for most of the character studied.
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