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Xiao Q.,Beijing Academy of Agricul ture and Forestry science | Wang J.-C.,Beijing Academy of Agricul ture and Forestry science | Zuo Q.,Beijing Academy of Agricul ture and Forestry science | Zhang L.,Beijing Academy of Agricul ture and Forestry science | And 4 more authors.
Chinese Journal of Applied Ecology | Year: 2010

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 gendest 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 com yield, among which, B2 was the best, with the com 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.

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