Abstract
A field experiment was carried out at G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand to find out the effect of different plant densities and integrated nutrient management on N, P and K content and uptake of quality protein maize (QPM) during spring 2010 in factorial randomized block design replicated thrice with three plant densities viz., 66,666, 83,333 and 100,000 plants ha-1 and five modes of nutrition viz., 100% recommended dose of fertilizer (RDF) inorganic, 125 % RDF inorganic, 100 % recommended dose of nitrogen (RDN) through inorganic + 25 % RDN through organic, 75 % RDN through inorganic + 25 % RDN through organic and 50 % RDN through inorganic + 50 % RDN through organic The results revealed that high plant density resulted in reduction of N, P and K content in source as well as sink while fertilizer application either through inorganic alone or in variable combinations with organic did not influence nutrient content neither in source nor in sink.
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