Effect of VAM and PSB on secretion of Organic Acids in soils of Tomato, Brinjal and Cucumber under semi arid conditions of Jaipur

Abstract

Microbial fertilizers are cost-friendly, environment-friendly. Sustainable agriculture practices mainly
include phosphate solubilizing, nitrogen-fixing, potassium mobilizing bacteria, fungi, and microorganisms.
Vesicular Arbuscular Mycorrhiza and P- Solubilizing Bacteria lives symbiotically with many plants. These
fungi and bacteria are found to increase the yield and productivity of plants by biosolubilizing the minerals
present in soil by organic acid production. Organic acids are produced as natural reflux to biotic and abiotic
stress by plant roots, organic decomposition, and microorganisms. Organic acids play an important role in the
carbon cycle, Solubilization of minerals, and detoxification of minerals. By this bio fertilization technology
production costs can be minimized and helps in evading environmental hazards. Presence of five organic acids
was determined through HPLC method viz. Oxalic acid, Pyruvic Acid, Gluconic acid, Formic acid and Citric
acid in 30 randomly selected treated plants. The Citric acid was present 14 samples, Formic acid was found in 7
samples, Gluconic and Oxalic acid was found in 4 samples whereas only 2 samples showed the presence of
Pyruvic acid, A significant concentration of Citric acid and Gluconic acid was observed in treated plants.