Controlled release particulate fertilizer composition

Details Controlled release particulate fertilizer composition Controlled release particulate fertilizer composition

1981-07-30

1983-03-29

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

For mushrooms

71 28, 71 29, 71 6411, 71903, 71904, 564 59, C05C 902

Patent

active

043782388

ABSTRACT:
A controlled release particulate fertilizer composition prepared by the reaction of urea and formaldehyde comprising polymeric nitrogen in the form of methylene urea polymers of varying chain length. The majority of the polymeric nitrogen consists of short chain polymers selected from the group consisting of methylene diurea, dimethylene triurea and mixtures thereof and the average degree of polymerization of urea and formaldehyde is greater than 1.5. The fertilizer compositions combine safety and high levels of plant nutrient efficiency.

REFERENCES:
patent: 3076700 (1963-02-01), Renner
patent: 4025329 (1977-05-01), Goertz
patent: 4089899 (1978-05-01), Greidinger et al.

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