Modeling Phosphate Solubilization in Biofertilizer Different Ratio by Bacteria Using Response Surface Methodology

حسینی, معصومه and برین, محسن and رسولی صدقیانی, میرحسن and اسدزاده, فرخ Modeling Phosphate Solubilization in Biofertilizer Different Ratio by Bacteria Using Response Surface Methodology. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Phosphorus is one of the most vital macronutrients required for the growth and development of plants. Despite abundant amounts of phosphorus in parent material, the soil phosphors availability is limited for plant. The amount microorganisms of phosphate solubilization specially bacteria have the most important role in solublilizing of insoluble phosphorous component.The purpose of this study was modeling the effects of different sources and levels of organic carbon, sulfur and rock phosphate on phosphorous solubilization using central composite design and response surface methodology. Results indicated that organic matter was significant (p<0.01). also According to the results response surface methodology with central composite design depicted the high performance of the central composite predictive model of phosphorus dissolution (R2= 0.896). Organic matter and rock phosphate were the most effective of factor on phosphorous solubilization, respectively.

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