Biofertilization of squash plants grown in sulphur rectified sandy soil with Streptomyces venezuelae Mutant and/or thiobacillus thiooxidans

The efficiency of a Streptomyces venezuelae mutant [SVM] and Thiobacillus thiooxidans [SOB] in oxidizing elemental sulfur in soil and the further consequences on squash growth and yield in a pot experiment was compared. Pronounced differences were distinguishable in the efficacy of tested strains in oxidizing sulfur and on pH values by either SVM or SOB in vitro as well asin increasing squash and yield. Sole biofertilization with SVM or SOB significantly increased the growth of squash and raised their nutrient contents. Dual biofertilization with SOB and SVM was superior to sole biofertilization