Composition and method for enhanced fertilizer uptake by plants
AssigneeDonlar Corporation
InventorsAlan M. Kinnersley, Larry P. Koskan, David J. Strom, Abdul R. Y. Meah
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Abstract
Water-soluble poly(organic acids) having a molecular size of more than 1,500 Daltons enhance fertilizer uptake and promote plant growth. Particularly suitable for this purpose are the poly(amino acids) such as poly(aspartic acid) and copolymers thereof.
Claims20
A composition, suitable for the promotion of plant growth, and comprising a mixture of
- a water-soluble, non-aromatic poly(organic acid) which is a poly(amino acid) of the group consisting of poly(aspartic acid), poly(glutamic acid), poly(glycine), poly(lysine), a copolymer of cysteine and glutamic acid, and a terpolymer of cysteine, glutamic acid and aspartic acid, said poly(amino acid) having at least about 15 repeating organic acid mers and a molecular size larger than 1,500 Daltons and
- a fertilizer for said plant.
A composition, suitable for the promotion of plant growth, which comprises a fertilizer for said plant;
- and a non-chelating, water-soluble, non-aromatic poly(organic acid) which is a poly(amino acid) of the group consisting of poly(aspartic acid), poly(glutamic acid), poly(glycine), poly(lysine), a copolymer of cysteine and glutamic acid, and a terpolymer of cysteine, glutamic acid and aspartic acid, said poly(amino acid) having a molecular size larger than that which can be absorbed by said plant.
A method for promoting plant growth which comprises supplying to the plant a growth promoting amount of a water-soluble poly(organic acid) which is a poly(amino acid) of the group consisting of poly(aspartic acid), poly(glutamic acid), poly(glycine), poly(lysine), a copolymer of cysteine and glutamic acid, and a terpolymer of cysteine, glutamic acid and aspartic acid, said poly(amino acid) having a molecular size larger than 1,500 Daltons together with plant nutrients.
Dependencies are inferred from the claim text.