The effect of phosphate solubilizing bacteria and organic fertilizer on phosphatase, available P, P uptake and growth sweet corn in andisols

This experiment conducted at the greenhouse of Agriculture Faculty, Universitas Padjadjaran, Jatinangor, West Java, Indonesia elevated at ± 782 m above sea levels. The aim of this experiment is to determine the effect of phosphate solubilizing bacteria and organic fertilizer on the phosphatase, P available, P uptake, and growth of sweet corn which planted on Andisols from Lembang, West Java, Indonesia. The Randomized Block Design (RBD) was used in this experiment with twelve treatments and three replications. The treatments were three isolates (Bacillus mycoides, Bacillus maceransand Pseudomonas pseudoalcaligenes) combined with organic fertilizers: cow manure and green manure. The result shows that phosphate solubilizing bacteria and organic fertilizer significantly increased the soil phosphatase and P-available. The treatments did not have a significant effect on the growth of sweet corn on Andisols. The isolate of P. pseudoalcaligenes combined with green manure gave the highest to soil available P.