Question

A good example of organic fertilizer which improves phosphorus uptake is

• A.

• B.

• C.

• D. None of these

Answer 1

The correct option is C

Microphos biofertlisers include microorganisms such as , and , which solubilise bound phosphate of rocks and soil to increase the availability of soluble phosphate to the plants. The phosphate dissolving bacteria reduce the pH of the substrate by secretion of a number of organic acids. This causes release of soluble inorganic phosphate into the soil through decomposition of phosphate-rich organic compounds.