The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 1984
Filed:
May. 06, 1983
Harold Heller, Cologne, DE;
Dietmar Schapel, Cologne, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
A process for supplying plants with nutrients uniformly and over a long period of time by the addition of nutrient-charged synthetic resin ion exchangers and mineral fertilizers to the culture medium, according to which the nutrient-charged synthetic resin ion exchangers are employed together with those mineral fertilizers with particle size <500 .mu.m which have been coated with massive polyurethanes having a particular water absorbing capacity which is adapted in a particular manner to the water solubility of the mineral fertilizer; furthermore, fertilizers containing nutrient-charged synthetic resin ion exchangers, and the mineral fertilizers coated with the massive polyurethanes having a particular water absorbing capacity.