Effect of plant growth promoting rhizobacteria (PGPR) application on soil fertility, productivity and nutritional status of Rice (Oryza sativa)
Ashish1 and Manoj Kumar1
1Department of Botany, Faculty of Sciences, Baba Mastnath University, Asthal Bohar, Rohtak-124021 (Haryana) (India) Email: manojvermamdu@gmail.com
ABSTRACT
Field experiments were carried out on rice crop at Rohtak 124001, India and evaluated the effect of plant growth promoting rhizobacteria (Azotobacter sp., Bacillus sp. and Pseudomonas sp.) with 75% nitrogen (N) and recommended dose of phosphorus (P) and potassium (K). The results showed that maximum plant height and number of tillers were recorded by application of treatment (75% N + Full P, K + Azotobacter sp. + Bacillus sp. + Pseudomonas sp.). The combined application of 75% N with either two or three species of PGPR, viz. (75% N + Full P, K + Azotobacter sp. + Bacillus sp., 75% N + Full P, K + Bacillus sp. + Pseudomonas sp., 75% N + Full P, K + Azotobacter sp. + Pseudomonas sp. and 75% N + Full P, K + Azotobacter sp. + Bacillus sp. + Pseudomonas sp.) treatments had significantly increased growth attributes over treatment (75% N + Full P, K). The highest grain yield in rice crop was recorded by the application of (75% N + Full P, K + Azotobacter sp. + Bacillus sp. + Pseudomonas sp.) treatment.