EFFECT OF DIFFERENT FERTILIZER DOSES ON YIELD AND ITS ATTRIBUTES IN POTATO

Potato is one of the world's fourth most important food crop after rice, wheat and corn. More than one billion people consume potatoes worldwide and it is the part of the diet of half a billion people in developing countries. In terms of area, India ranks third in the world after China and Russia and second in production after China. Afield experiment on effects of different fertilizer doses on yield and its attributes on potato was conducted during Rabi season for three consecutive years with an objective to prevent the indiscriminate use of fertilizers by the potato growers. The experiment was laid out in Randomized Block Design with seven treatments and 3 replications. The results revealed that potato treated with T2= 100% RDF i.e. 150 kg N, 60 kg P2O5 and 120 kg K2O recorded a yield of 15.33 t/ha which was at par with that recorded by T3 i.e. 150% RDF (13.74 t/ha). The fertilizer dose of 100% RDF was found beneficial for improving yield, quality and storability of potato tubers. The gross monitory return (Rs. 1,83,397/ha) and net monitory return (Rs. 98,401/ ha) were found to be maximum in treatment T2. B:C ratio was found to be maximum in T2.