Abstract: Four kinds of organic-inorganic cementing and coating materials were prepared by a coating method using water as the solvent, and the corresponding cemented and coated fertilizers (B2, PS, F2, and F2F) were produced by disc pelletizer. The tests on the properties of these fertilizers showed that the granulation rate, compression strength, and film-forming rate were B2>PS>F2>F2F. Soil column leaching experiment showed that the curve of accumulated nitrogen dissolving rate was the gentlest for B2. In 48 days, the accumulated nitrogen-dissolving rate was in the order of B2, 54.65%<PS, 56.16%<F2, 59.47%, <F2F, 63.12%.Field experiment showed that compared with the same application amount of NPK, all the test fertilizers had better effects on corn yield, among which, B2 was the best, with the corn yield and fertilizer use efficiency increased by 19.72% and 20.30%, respectively. The yield increasing effect of other test fertilizers was in the order of PS>F2>F2F.

Key words: a coating method using water as the solvent, organic-inorganic complex materials, cementation, coating, cadmium, znic, bioavailability, pig manure, chicken manure, rice straw.