Season Bio-fertilizertreatment*** Inorganic fertilizer treatment** Mean*
0% RR 25% RR 50% RR 100% RR
Grain yield (kg·ha−1)
2008/09 DS BG 4016 4421 4569 5134 4508 a
  BN 4163 4753 4900 5081 4683 a
  BS 4351 4569 4375 5173 4610 a
  Control 4062 4440 4630 4799 4534 a
  Mean* 4158 c 4548 b 4617 b 5034 a  
2009 WS BG 1963 1975 2502 2383 2206 bc
  BN 2149 2417 2420 2604 2398 a
  BS 2005 2179 2287 2674 2286 ab
  Control 1902 2000 2038 2165 2026 c
  Mean* 2005 c 2143 bc 2038 ab 2456 a  
2010 WS BG 4326 4303 4670 4596 4482 ab
  BN 4197 4529 5131 4794 4663 a
  BS 3952 4336 4578 4732 4399 bc
  Control 3389 4245 4274 4716 4219 c
  Mean* 3965 c 4353 b 4659 a 4710 a  
2010/11 DS BG 4145 4665 4926 5556 4825 a
  BN 4009 5049 5262 5519 4960 a
  BS 3955 4876 5175 5492 4861 a
  Control 3801 4420 4707 5265 4548 b
  Mean* 3977 c 4751 b 5014 b 5458 a  
* In each season, mean values in a column or row followed by the same letter are not significantly different at 5% of significance.
Table 4: Grain yield of the variety PSB Rc18 as affected by inorganic fertilizer level and biofertilizer treatments in all four experimental seasons and both sites.