eng Enviro Research Publishers Current Agriculture Research Journal 2347-4688 2321-9971 2019-12-18 7 3 332 336 7502 article Nilim Kalita 1 Sanjib Bhuyan 2 Subal Maibangsa 3 Ranjit Kumar Saud 4 1SMS (Soil Science.),Krishi Vigyan Kendra, Karbi Anglong, AAU, Assam, India. SMS(Extn Ed.), Krishi Vigyan Kendra, Karbi Anglong, AAU, Assam, India. Head, Krishi Vigyan Kendra, Karbi Anglong, AAU, Assam, India. Associate Director of Extension Education, Assam Agricultural University, Jorhat The study was conducted at the farmers’ field of Karbi Anglong district of Assam to determine the effect of seed treatment with Azotobacter and Phosphorus Solubilizing Bacteria (PSB) on growth and yield of Toria (var. TS-36). The effect of biofertilizers was observed in combination with various levels of chemical fertilizers and FYM. Seed inoculation with Azotobacter and PSB @40g kg^-1 seed + 75% NPK recorded maximum grain yield (11.15 qha^-1) due to the higher plant height (88.52 cm), branches plant^-1 (4.96), siliqua plant^-1 (164.76), root growth (2.30g plant^-1), seeds siliqua^-1(10.97) and 1000-seed weight (4.82 g). The seed treatment with biofertilizers in combination with different levels of chemical fertilizers was found to be superior over recommended dose of NPK. Economics of cultivation in terms of net return of Rs.17605 & Rs. 17205 and B: C of 2.07 & 2.11 were considerably higher in treatment of Azotobacter + PSB + 50% NPK + FYM and Azotobacter + PSB + 75% NPK + FYM In which biofertilizer seed treatment was done as compared to recommended NPK (Rs. 14160 and 1.93, respectively). Application of Azotobacter and PSB in combination with 75 and 50% NPK and FYM @2 t ha^-1 were found as viable and feasible option for getting higher yield and economic return from cultivation of toria in hill zone of Assam. http://www.agriculturejournal.org/volume7number3/effect-of-biofertilizer-seed-treatment-on-growth-yield-and-economics-of-toria-brassica-campestris-l-under-rainfed-condition-in-hill-zone-of-assam/ Azotobacter; Biofertilizer; Economics; Phosphorus Solubilizing Bacteria; Toria