PJB-2005-78
EFFECT OF SOIL INCORPORATED HERBICIDES ON WEEDS AND YIELD OF CANOLA (BRASSICA NAPUS L.)
A. TANVEER, M. AYUB, A. ALI AND M.A. NADEEM
Abstract
The effect of two soil incorporated herbicides viz., trifluralin @ 0.90,1.20,1.50 kg a.i. ha-1 and acetochlor @ 0.094, 0.124 and 0.312 kg a.i. ha-1 on weeds and yield of canola was evaluated in a field trial at Agronomic Research Area, University of Agriculture, Faisalabad. Trifluralin @ 1.50 kg a.i. ha-1 was very effective in controlling the weeds and reducing their fresh and dry weight. Application of trifluralin @ 1.5 kg a.i. ha-1 reduced the weed density (7.00m-2) significantly as compared to control (32.67m-2) reducing the weed dry weight from 8.1 gm-2 to 1.7 gm-2. Trifluralin @ 1.5 kg a.i. ha-1 showed maximum increase (34%) in canola seed yield by increasing the number of pods per plant, seeds per pod and 1000-seed weight.
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