Effect of Phosphorous Level and Phosphorous Solubilizing Bacteria (PSB) on Yield Attributes and Yield of Berseem (Trifolium alexandrinum L.)

The present study was conducted at Research farm of R.A.K., college of Agriculture, Sehore, Madhya Pradesh during 2020-21. The experiment was laid out using Randomized Block Design with different levels of Phosphorus with or without PSB application (T1- 45 kg P2O5/ha, T2- 60 kg P2O5/ha, T3- 75 kg P2O5/ha,T4 -90 kg P2O5/ha, T5 - 45 kg P2O5/ha + PSB @ 5g/kg seed, T6 - 60 kg P2O5/ha + PSB @ 5g/kg seed, T7 - 75 kg P2O5/ha + PSB @ 5g/kg seed, T8 - 90 kg P2O5/ha + PSB @ 5g/kg seed).Treatment T7 found to be best for yield and yield attributes of berseem. Maximum no. of capsules/m2 (466), no. of seeds/capsule (28.81), Test weight (2.01 g), Seed yield (0.46 g/plant, 0.478 kg/plot, 239 kg/ha), Green fodder yield (63.75 kg/plot, 31870 kg/ha) and HI (10.21).While minimum recorded with treatment T1 (45kg P2O5/ha without PSB application).