Use of ammonium syngenite as a slow-acting nitrogen fertilizer

Details Use of ammonium syngenite as a slow-acting nitrogen fertilizer Use of ammonium syngenite as a slow-acting nitrogen fertilizer

1988-03-17

1989-11-28

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 31, 71 41, 71 59, 71 61, 71 63, C05C 300, C05D 900, C05B 300

Patent

active

048835307

ABSTRACT:
Soils are fertilized by a method in which ammonium syngenite (NH.sub.4).sub.2 SO.sub.4.CaSO.sub.4.H.sub.2 O or a mixture of finely divided ammonium sulfate, calcium sulfate, calcium nitrate, calcium chloride and/or dicalcium phosphate is applied to these soils, as a slow-acting nitrogen fertilizer, with the proviso that the molar ratio of Ca to SO.sub.4.sup.-- in the mixture is 1:2.+-.10%.

REFERENCES:
CA 104261h, Ahmad, Feasability of a Mixed Fertilizer From Urea and Superphosphates, 1972.

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