title: [Development and evaluation of fertilizers cemented and coated with organic-inorganic materials].
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.
authors.affiliation: Institute of Plant Nutrition & Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China. xqiang1978@163.com
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xiao
authors.forename: Jia-Chen
authors.initials: JC
authors.lastname: Wang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zuo
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Bao-Cun
authors.initials: BC
authors.lastname: Liu
authors.forename: Tong-Ke
authors.initials: TK
authors.lastname: Zhao
authors.forename: Guo-Yuan
authors.initials: GY
authors.lastname: Zou
authors.forename: Qiu-Ming
authors.initials: QM
authors.lastname: Xu
mesh_terms: D018533:Biomass; D002484:Cementation / Q000379:methods; D055598:Chemical Phenomena; D005308:Fertilizers; D007287:Inorganic Chemicals / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry; D003313:Zea mays / Q000254:growth & development*
chemical_list: D005308:Fertilizers; D007287:Inorganic Chemicals; D009930:Organic Chemicals; D009584:Nitrogen