Effect of Biofertilizer Seed Treatment on Growth, Yield and Economics of Toria (Brassica Campestris L.) under Rainfed Condition in Hill Zone of Assam

Nilim Kalita^1*, Sanjib Bhuyan¹, Subal Maibangsa¹, Ranjit Kumar Saud²

¹Krishi Vigyan Kendra, Karbi Anglong, AAU, Assam, India

²Assam Agricultural University, Jorhat

Corresponding Author Email: nilimkalitakvk@gmail.com

DOI : http://dx.doi.org/10.12944/CARJ.7.3.08

Abstract:

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.

Keywords:

Azotobacter; Biofertilizer; Economics; Phosphorus Solubilizing Bacteria; Toria

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