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ThesisItem Open Access Studies on direct and residual effect of organic, inorganic and biofertilizers on mungbean-mustard cropping system(G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-04) Kapoor, Anil; Singh, RohitashavThe field experiments were conducted at N. E. Borlaug Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar, district Udham Singh Nagar (Uttarakhand) during Kharif and Rabi seasons of 2018-19 and 2019-20 to assess the direct and residual effect of organic, inorganic and biofertilizers on mungbean-mustard cropping system. The soil of the experimental field was sandy loam with neutral pH, high in organic carbon, low to medium in available nitrogen, medium in available phosphorus and potassium. The experiment was laid out in factorial randomized block design with three replications keeping three inorganic fertilizer levels viz., 75% RDF, 100% RDF and 125% RDF; two organic manures viz., control and FYM 5 t/ha and three biofertilizers viz., Rhizobium, LNM-16 and Rhizobium + LNM-16. In case of mungbean crop, treatment consisting of 125% RDF was found significant over 100% and 75% RDF, FYM @ 5 t/ha over control and seed inoculation with Rhizobium+LNM-16 over alone inoculation during both the years in terms of growth and development, yield attributes, economics (B:C ratio), and the soil health parameters. Likewise, similarly best treatments imposed in preceding mungbean crop gave best result in succeeding mustard crop in terms of yield attributes, economics (B:C ratio), and the soil health parameters of during both years of experiment. The system productivity of mungbean-mustard cropping system was recorded higher in terms of mungbean equivalent yield, net profit and benefit cost ratio under the application of 125% RDF (MEY :2116 and 2196 kg/ha) ;(Rs.90450 and 97631) and (1.58and 1.71) than that of 100% and 75% RDF; FYM @ 5 t/ha (MEY :2082 and 2147 kg/ha); (Rs. 87199 and 93323) and (1.50 and 1.61) over control and co-inoculation of Rhizobium + LNM-16 (MEY :1971 and 2126 kg/ha); (Rs.91704 and 96468)and (1.62 and 1.70) during 2018-19 and 2019-2020, respectively. On the basis of findings of the present investigation, it can be inferred that higher profitability from mungbean - mustard system can be achieved by growing of mungbean crop with the application of 125% RDF or FYM @ 5 t per hectare or combined inoculation of Rhizobium+LNM-16. Therefore application of 125% RDF or 5 t FYM or co-inoculation with Rhizobium+LNM-16 can be recommended in the mungmean- mustard cropping system for better utilization of nutrients in mungmean crop and harnessing the residual effect on mustard crop with increased profitability.