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Pak. J. Bot., 47(SI): 171-180, 2015. |
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Updated: 31-12-15 | ||||
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EFFECT OF VARIOUS LEVELS OF NPK ON CROP GROWTH AND YIELD OF SUNFLOWER HYBRIDS GROWN UNDER AUTUMN SEASONS
JEHAN BAKHT1*, MOHAMMAD SHAFI2 AND MOHAMMAD YOUSAF3
1Institute of Biotechnology and Genetic Engineering, University of Agriculture Peshawar KPK Pakistan 2Department of Agronomy, University of Agriculture Peshawar KPK Pakistan 3National Agricultural research Centre Islamabad Pakistan *Corresponding author’s e-mail: jehanbakht@yahoo.co.uk
Abstract: The present study investigates the effect of various doses of N, P and K (0, 50, 100 and 150 kg ha-1) on sunflower hybrids (SF-187 and Parsun-1. The data indicated that different parameters (plant height, head diameter, number of seeds head-1, 100 seed weight and biological yield) were significantly (p≤0.05) affected by an increase in fertilizer level in all combinations when compared with the control. Maximum seed yield (2813 kg ha-1) was produced by fertilizer combinations of 150:100:100 NPK kg ha-1 and minimum in control plot (1813 kg ha-1). Hybrid Parsun-1 produced less yield than SF-187. Oil content also varied with different combinations of NPK fertilizers, which ranged from 37 to 39%.during both the seasons. Maximum biological yield (15.8 tons ha-1) was produced in NPK combination of 150:100:100 kg ha-1.
Key words: Growth, Yield, Sunflower, NPK, Autumn
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