Nitrogen And Weed Management in Okra (abelmoschus esculentus Moench)
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Date
1999
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Birsa Agricultural University, Ranchi
Abstract
The experience entitled “ Nitrogen and weed management in Okra” was conducted during rainy season of 1998 at vegetable section of Department of Horticulture under the faculty of Agriculture , Birsa Agriculture university ,Kanke,Ranchi. It was conducted in randomized block design having sixteen treatment replicated three times with an objective to increase production of Okra use of herbicides /hand weeding along with the application of nitrogen in proper dose, four levels of nitrogen(0,40,80 and 120kg/ha) and a herbicide pendimethaline at the rate of 1 kg a.i./ha in 800 liters of water pre-emergence spray and two hand weedings (20and 40DAS).
The vegetative characters like, plant height (92.16cm)number of branchs (10.46) number of nodes (13.93)were significantly better in N120 WM while minimum in control. Minimum days taken to first flower (1.40) was found in N 40 W0 and maximum (5.73) was in N120 wm.
Among the yield attributing characters significant influence with application of nitrogen and herbicides were observed maximum fruit length (12.06) ,number of fruit per plant (10.33) were recorded in N120wm ,closely followed by N120 Wph and minimum in control. The treatment N120Wm gave maximum yield (108.02q/ha)followed by N80 Wm (68.92q/ha) and N80 Wph (66.25q/ha). Maximum profit of Rs. 44,777=50/ha and best benefit cost ratio (4.80) were obtained in treatment N120 Wm followed by a profit of Rs 25.619=00/ha and a benefit cost ratio 2.89 in treatment N80 Wm
Based on these observation, judicious use of 120Kg N/Ha +hand weeding is suggest for maximum growth and yield of okra cultivation. However, herbicide (pendimethaline)may be used, if the labour is not available.