Paper Title
Evaluation of Bacteria with Phosphate Solubilizing Ability in Agricultural Soil Associated with The Development of Citrus Unshiu (Mandarina Satsuma) In Huaral – Perú

Abstract
The purpose of this investigation is to identify the main bacterial genera which present the physiological ability to solubilize phosphates, with the objective of using this information in future strategies for sustainable agronomic development, as well as in the production of bioinputs and bioproducts. Soil samples were collected from Satsuma tangerine cultivation areas in Perú’s Huaral province, and strains were selected based on macroscopic morphology in selective and differential media as well as with microscopic observation via GRAM differential stain focused mainly on the Bacillus sp. and Pseudomonas sp. genera. Out of the 95 assessed strains, 57 were picked as having a superior phosphate solubilizing capacity in NBRIP culture medium with bromophenol blue, presenting a halo between 10 mm and 30 mm in diameter. The results revealed that the Pseudomonas sp genus exhibited a wider halo diameter when compared with Bacillus sp., which suggests a superior phosphate solubilizing capability in Pseudomonas sp. Keywords - Bacillus Sp, Pseudomonas SP, Phosphate Solubilization, Citrus Unshiu