Soil amendment material and process for preparation thereof

Details Soil amendment material and process for preparation thereof Soil amendment material and process for preparation thereof

1988-05-13

1990-05-22

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Organic material-containing

71904, 71 6412, 71903, C05G 304

Patent

active

049274473

ABSTRACT:
A soil amendment material and an associated process for the preparation thereof, comprising a water swellable hydrophilic polymer infused with high concentrations of plant nutritive salts. The amendment is prepared by repeated soaking of hydrophilic swellable polymer particles in a solution of nutritive salts in water, followed by heat application to drive off the entrained water, leaving the nutrients entrapped in the polymer particles.

REFERENCES:
patent: 4058124 (1977-11-01), Yen et al.
patent: 4540427 (1985-09-01), Helbling
patent: 4762545 (1988-08-01), Youssef et al.

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