Effect of Biofertilizers (Azatobacter and Azospirillum) Alone and in Combination with Reduced Levels of Nitrogen on Cost and Returns of Cauliflower

An experiment was conducted during rabi season of 2004–05 involving three levels of nitrogen (0, 100 and 75% nitrogen) with four levels of biofertilizers (no inoculation, Azospirillum, Azotobacter and Azotobacter + Azospirillum). Out of the twelve treatment combinations, the best treatment was T₁₂ (N₂B₃) i.e. 75 percent nitrogen (120 kg ha⁻¹) + Azotobacter + Azospirillum which significantly influenced curd yield (400.00qha⁻¹) and give maximum net returns (96, 830.6 Rs ha⁻¹) with B: C ratio of 4.17.