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.
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