Patent ID: 6168643
Filing Date: 2001-01-02
Classification: C05B,C05G,Y10S

Abstract:
A concentrated phosphorus fertilizer formulation consisting essentially of: a) a phosphorus containing acid or its salts selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and salts thereof; b) an inorganic complexing agent or salts thereof comprising at least 1% but less than 30% by weight of the concentrated phosphorus fertilizer formulation, said inorganic complexing agent or salts thereof being selected from the group consisting of polyphosphoric acid, dipolyphosphoric acid, tripolyphosphoric acid, tetra polyphosphoric acid, penta polyphosphoric acid, hexapolyphosphoric acid, potassium polyphosphate, ammonium polyphosphate, sodium polyphosphate, zinc polyphosphate, magnesium polyphosphate, and iron polyphosphate; and when said concentrated phosphorus fertilizer is diluted with water, a substantially fully soluble fertilizer having an acceptable pH for phosphorus uptake by plants is formed.