An experiment was conducted during 2011-12 and
2012-13 in the Division of Agronomy, Faculty of Agriculture, Khasla College,
Amritsar to study the effect of inorganic fertilizers and various organic
manures on productivity, nutrient uptake and profitability of processing type
autumn potato (Solanum tuberosum L.). The large sized (>40g) potato tubers
and total tuber yield was statistically at par with inorganic fertilizers and
100 per cent nitrogen through vermin-compost. With inorganic fertilizers applications,
the large sized potato tubers and total potato tuber yield was observed 5.82
per cent and 6.86 per cent more than application of 100 per N through
vermi-compost, but total income, net income and benefit cost ratio was found
higher with 100% nitrogen through vermin-compost followed by 100% N through
DRS. These organic source of nutrients were statistically comparable with
inorganic sources of nutrients. Sole application of organic sources of
nutrients were equally efficient to inorganic fertilizers in improving the
nutrients uptake, tuber yield and benefit: cost ratio (B: C). - See more at:
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