Patent ID: 8043995

Claim:
A fertilizer product comprising a fertilizer in combination with a polymer comprising recurring polymeric subunits each made up of at least two different moieties individually and respectively taken from the group consisting of B and C moieties, where moiety B is of the general formula and moiety C is of the general formula wherein each R 7 is individually and respectively selected from the group consisting of H, OH, C 1 -C 30 straight, branched chain and cyclic alkyl or aryl groups, C 1 -C 30 straight, branched chain and cyclic alkyl or aryl based ester groups, R′CO 2 groups, OR′ groups and COOX groups, wherein R′ is selected from the group consisting of C 1 -C 30 straight, branched chain and cyclic alkyl or aryl groups and X is selected from the group consisting of H, the alkali metals, NH 4 and the C 1 -C 4 alkyl ammonium groups, R 3 and R 4 are individually and respectively selected from the group consisting of H, C 1 -C 30 straight, branched chain and cyclic alkyl or aryl groups, R 5 , R 6 , R 10 and R 11 are individually and respectively selected from the group consisting of H, the alkali metals, NH 4 and the C 1 -C 4 alkyl ammonium groups, Y is selected from the group consisting of Fe, Mn, Mg, Zn, Cu, Ni, Co, Mo, V and Ca, and R 8 and R 9 are individually and respectively selected from the group consisting of nothing (i.e., the groups are non-existent), CH 2 , C 2 H 4 , and C 3 H 6 .