Influence of potassium and phosphate solubilizing bacteria on growth and development of Davana (Artemisia pallens bees)

The study assessed the impact of KSB and PSB application on Artemisia pallens growth, yield, and its impact on endophytic and rhizosphere bacterial populations. The plant height and flower diameter of davana were increased due to the application of T₇: 100% RDF+PSB+KSB over control and Recommended Dose of Fertilizer. Significantly higher plant height and flower diameter was 100% RDF+PSB+KSB compared to RDF alone. Treatments 75% RDF+PSB+KSB exhibited higher fresh plant weight than RDF alone. Soil samples from T₇ showed the highest bacterial population (49×104 Cfu/ml), enhancing plant yield and essential oil quality. Endophytic bacteria were predominantly Gram-negative with rod and cocci shapes. RDF with PSB and KSB increased respiration rate, indicating faster nutrient mineralization. Overall, 75% RDF with PSB and KSB benefits davana performance, bacterial population, and soil nutrient mineralization, reducing reliance on synthetic fertilizers and environmental risks.