Integrated weed management in okra
2005
Usman, K. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Agronomy) | Ahmad, E. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Agronomy) | Khan, M.U. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Agriculture Chemistry) | Ahmad, A. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Horticulture) | Imdad, A. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Horticulture) | Iqbal, J. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Soil Science)
Integrated weed management study was carried out at Agronomic Research Area, Faculty of Agriculture, Gomal University Dera Ismail Khan, Pakistan during the summer 2003. Seven treatments viz. black plastic mulch, straw mulch, Stomp 330 EC alone, Stomp 330 EC with hand weeding once, hand weeding once, hand weeding twice and unweeded check. Data were recorded for different growth and yield parameters. Germination of okra was slightly affected by spraying the Stomp 330 EC. Plant height was improved by using all the mulches. Number of leaves were increased in all the treatments except un-weeded plots. Weed density was always lower in plots having mulches and the plots sprayed with Stomp 330EC or hand weeded. Plant survival was affected by any treatment, however the effect was not significant statistically. Pod length and pod diameter was also slightly affected, showing the higher pod length and pod diameter in mulch treated plots. Number of pods and yield were increased by all the weed control measures as compared to un- weeded plots. Both the mulches like black plastic mulch and straw mulch were found helpful in conserving the moisture, controlling weeds and producing higher yield, but were not found to be economical. The findings suggest that spraying Stomp330 EC @ 3 L ha-1 as pre-emergence with one hand weeding is the best to control weeds to get higher yield and economic returns.
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