Performance of Azospirillium and Phosphate solubilizing Bacteria on Growth and Yield of Sorghum

Author: A.R. Jadhav, S.J. Waghmare, D.P. Deshmukh and V.S. Patil

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Abstract

In the present study, seven Azospirillium and eight Phosphate solubilizing bacteria (PSB) isolates were isolated from sorghum growing regions of Kolhapur District. All isolates were identified on the basis of morphological, microscopic features and different biochemical tests. The treatment T11, (Azospirillium + PSB + 100 %N and P2O5+ RD of K2O) showed the highest plant height at harvest (215.50 cm), number of tillers per plant (6.10) which was on par with treatment T10 (Azospirillium + PSB+ 75% N and P2O5+ RD of K2O) i.e. plant height at harvest (213.40 cm) and number of tillers per plant (5.70). The results concern yield parameters revealed that the treatment T11, (Azospirillium + PSB+ 100 %N and P2O5 + RD of K2O) showed the highest 1000 grain weight (39.80 g), grain yield (44.33 q/ha) and fodder yield (15 t/ha) which was on par with treatment T10, (Azospirillium + PSB+ 75 %N and P2O5+ RD of K2O) i.e. test weight (38.50 g), grain weight (43.26 q/ha) and fodder yield (14.60 t/ha). Also highest available N (166.78 Kg/ha), P (42.36 Kg/ha) and K (143.22 Kg/ha) was showed by treatment T11, (Azospirillium + PSB+ 100 %N and P2O5+ RD of K2O) which was on par with treatment T10, (Azospirillium + PSB+ 75%N and P2O5 + RD of K2O) available N (164.87 Kg/ha), P (41.16 Kg/ha) and K (142.63 Kg/ha) in soil after harvest

Keywords

Azospirillium, Phosphate solubilizing bacteria, yield, Sorghum

Conclusion

Results revealed that, the treatment T11, Azospirillium + PSB+ 100%N and P2O5+ RD of K2O, showed highest growth parameters, yield parameters and high available N, P, K followed by the treatment T10 , Azospirillium + PSB + 75% N and P2O5 + RD of K2O. Also it was noticed that the combine use of Azospirillum and phosphate solubilizing bacteria had better effect on growth and yield of sorghum than single. Use of Azospirillium and Phosphate solubilizing bacteria saves 25% dose of nitrogenous and phosphatic chemical fertilizers. Additionally efficient strains of Azospirillium and PSB could be increase nitrogen fixing and phosphorus solubilizing ability which indirectly increases yield. Integrated use of inorganic N, P, K and efficient strains of biofertilizers is most efficient way of saving the chemical fertilizers

References

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How to cite this article

A.R. Jadhav, S.J. Waghmare, D.P. Deshmukh and V.S. Patil (2024). Performance of Azospirillium and Phosphate solubilizing Bacteria on Growth and Yield of Sorghum. Biological Forum – An International Journal, 16(4): 178-183.