Productivity and profitability of different cultivars of potato (Solanum tuberosum) as affected by organic and inorganic sources of nutrients
2011
Sarkar, A. | Sarkar, Shondeep L. | Jāmāna, E. | Devi, W.P.
Field experiments were conducted during winter of 2005–06 and 2006–07 at Hooghly, West Bengal to investigate the effect of different organic and inorganic sources of nutrients on productivity and profitability of potato (Solanum tuberosum L.) cultivars. The treatments consisted 3 varieties, viz. ‘Kufri Chipsona-1’, ‘Kufri Chipsona-2’ and ‘Kufri Jyoti’ in main-plots and 4 nutrient sources, viz. Farmyard manure (FYM) @ 35 t/ha (N₁), FYM @ 30 t/ha + biofertilizers (N₂), FYM @ 25 t/ha + mustard cake @ 1 t/ha (N₃), recommended dose of NPK i.e. 180:66:125 kg/ha N, P, K (N₄) in sub-plots. Varieties had significant variations in growth and yield attributes, yield and nutrient uptake. Higher growth attributes were recorded under ‘Kufri Chipsona-1’ except plant height. Hence, ‘Kufri Chipsona-1’ gave maximum number of tubers, total tuber yield (28.18 and 28.39 t/ha), NPK uptake, net profit and B:C ratio (1.28, 1.22). Among sources of nutrient recommended dose of NPK showed better performance in all respects and registered 4.7 to 9.7% more tuber yield when compared with other nutrient sources. The highest B:C ratio (1.34, 1.29) was also recorded in recommended dose of NPK treatment. Higher dry weight of tubers (718.15, 722.40 g/m²), number of tubers (680.21, 690.74 thousand/ha) and tuber yield (29.44, 29.89 t/ha) were obtained from ‘Kufri Chipsona-1’ potato treated with recommended dose of NPK.
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