Environmental friendly alumo-silicate fertilizers based on natural phosphate and modified zeolite | Environmental Friendly alumosilikatna đubriva na bazi prirodnih fosfata i modifikovanih zeolita
2010
Stojanović, M., Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Milojković, I., Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Grubišić, M., Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Stevanović, D., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Adamović, M., Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia)
The application of raw phosphates for soil fertilizing is economically cost-effective and environmentally eligible then industrial phosphorus fertilizers, but it is limited on acid soils. The extend their use on all types of soils, and increased solubility, the synergistic mixture of phosphate ore-hydroxyapatite (FR) and natural zeolite (Z) was modified. This paper analyses the performance of modified zeolite with ammonium sulphate and urea as holders of NH4+ -ions. Modified zeolite was spiked with natural phosphate and concentrated phosphate from domestic raw material, obtaining natural environmental friendly fertilizers. The degree of phosphorus mobility and pH changes in the kinetic conditions were followed.
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