Osmotic fertilizer product and fertilization method

Details Osmotic fertilizer product and fertilization method Osmotic fertilizer product and fertilization method

1978-03-17

1980-09-23

Richman, Barry S.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 64F, 71 27, 71 64R, 47485, A01G 2900

Patent

active

042240484

ABSTRACT:
A fertilizer product and method for providing controlled application of high analysis fertilizer. A controlled initial light release of a water soluble plant food consistent with growth requirements of the plant is provided. As the plant increases in size and requires an increase of plant food the subject fertilizer and method supplies increasing amounts of plant food without fertilizer burning. The subject product and method includes a water expandable reverse osmosis membrane barrier, preferably in the form of a collar providing a source of plant food released in controlled varying amounts as required by plant growth.

REFERENCES:
patent: 1554865 (1925-09-01), Magoon
patent: 2380721 (1945-07-01), Brigden
patent: 4063919 (1977-12-01), Grano

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