Ida-Gro brand pelletized (0-3-0) - 20% total phosphate, 3% available phosphate, and 20% calcium is derived from a naturally mined soft rock phosphate source in Idaho. Biological activity and acidic conditions speeds release in compost or in soil.

• Application Rates

  Apply according to soil test recommendations. Manufacturer recommends application rates of 400 - 500 lbs/acre.