Effect of phosphate solubilizing bacteria and blue green algae on phosphorus uptake and its apparent recovery in hybrid rice
Author(s): Smita Sinha and Sunil Kumar
Abstract: A pot experiment was conducted during kharif season of 2020 on sandy loam soil in texture to investigate the impact of phosphate solubilizing bacteria (PSB) and blue green algae (BGA) on P uptake and its apparent recovery in hybrid rice cultivation. Thirteen treatments laid in completely randomized design with two different doses of chemical fertilizers (100% and 75%), two isolates of PSB (Enterobacter cloacae strain BAU3 and Bacillus aryabhattai strain BAUMS8) and blue green algae had been used in the study. The P uptake and its apparent recovery increased significantly when supplied with 100% recommended dose of inorganic fertilizers (RDF) + PSB @ 750 ml ha-1 + BGA @ 10 kg ha-1 as compared to 100% RDF. The P uptake augmented from control treatment (T1) 23.09 kg ha-1 to 30.33 kg ha-1 in the treatment (T8) (100% RDF + PSB1 @ 750 ml ha-1 + BGA @ 10 kg ha-1) due to increase in the grain and straw yield and P concentration. The apparent recovery percentage was maximum in treatment T8 (100% RDF + PSB1 @ 750 ml ha-1 + BGA @ 10 kg ha-1) i.e. 13.63 per cent. Finally, it can be concluded that application of 100% RDF along with PSB @ 750 ml ha-1 + BGA @ 10 kg ha-1 significantly increased the P uptake and its apparent recovery in hybrid rice.
Smita Sinha, Sunil Kumar. Effect of phosphate solubilizing bacteria and blue green algae on phosphorus uptake and its apparent recovery in hybrid rice. Pharma Innovation 2023;12(3):3949-3954. DOI: 10.22271/tpi.2023.v12.i3aq.19371