MAIZE GROWTH AND YIELD PERFORMANCE WITH THE APPLICATION OF PLANT GROWTH-PROMOTING RHIZOBACTERIA

Abstract

Plant growth-promoting rhizobacteria (PGPR) play a pivotal role in improving the crop productivity and soil health through several mechanisms, counting nutrient solubilization, hormone production and improved soil structure. This research trial intended to appraise the effects of diverse PGPR strains on maize progression, yield and soil properties. Field experimentations were carried out to assess the impact of Pseudomonas fluorescens, Pseudomonas putida, Azospirillum lipoferum, Bacillus polymyxa and Bacillus fimosus on key agronomic parameters. The results validated that PGPR application significantly improved root and shoot biomass, plant height and maize yield equated to control. Among the tried strains, Pseudomonas fluorescens, Pseudomonas putida and Azospirillum lipoferum were the most effective leading to substantial upsurges in maize productivity. Additionally, PGPR treatments boosted soil porosity and reduced bulk density signifying their role in improving soil structure. These outcomes advocate that PGPR can function as a justifiable alternative to conventional fertilizers, promoting maize growth while maintaining soil health.