An experiment with wheat-maize cropping system was conducted during rabi, 2010 and kharif, 2011 at the soil microbiology section of Department of Soil Science CSKHPKV, Palampur. An increase in number of tillers per plant, number of grains per spike, number of cobs per plant, grains per cob, diameter of cob were recorded highest in the treatment (T12) where inoculation with nitrogen fixer and phosphate solubilizers+125% of RDF of nitrogen+75% of RDF of phosphorus was done. Grain yield and straw yield were also increased in the treatment (T12) where inoculation with nitrogen fixer and phosphate solubilizers+125% of RDF of nitrogen+75% of RDF of phosphorus sources were applied. Quality parameters (protein and carbohydrate content) were also highest in treatment (T12).
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Dhiman et al. (2017) studied this question.