TechnoRep - Faculty of Technology and Metallurgy Repository
University of Belgrade - Faculty of Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   TechnoRep
  • Tehnološko-metalurški fakultet
  • Radovi istraživača / Researchers’ publications (TMF)
  • View Item
  •   TechnoRep
  • Tehnološko-metalurški fakultet
  • Radovi istraživača / Researchers’ publications (TMF)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Polyphosphate glass as fertilizer for plant seedlings

Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća

Thumbnail
2019
bitstream_10021.pdf (718.1Kb)
Authors
Vujošević, Ana
Matijašević, Srđan D.
Smiljanić, Sonja
Nikolić, Jelena
Zečević, Bogoljub
Topalović, Vladimir
Savić, Veljko
article (publishedVersion)
Metadata
Show full item record
Abstract
Due to the dissolution properties the phosphate glasses can be promising materials for the development of new ecologically safe fertilizers. The complex polyphosphate glass with a molar ratio (M2O + MO)/P2O5 gt 1 and addition of microelements Zn2+, Mn2+, Fe3+ and Cu2+ were used in substrate for production of flower and vegetables seedlings. Dissolution tests were conducted in deionized water and 2% citric acid. The effects of the reaction time on the normalized glass mass loss (fm) and the normalized concentrations of the ions (fi) at 20, 30, 37 and 50°C were determined. Dissolution rate constants (kw - deionized water, kc -2% citric acid) were also determined (kw-0.0028-0.0094 gm-2, kc-0.029-0.011 gm-2). Values of kc were higher than those of kw, which confirms a significant effect of solvent type and temperature on the dissolution kinetics of glass. The experiments with plants (one vegetable and one flower) showed that the addition of phosphate glass caused an increase in yield and ...quality of plants. The applied dose of polyphosphate glass of 1gl-1 showed the best effect on the growth of the examined plant seedlings.

Polifosfatno staklo, u kome je molski odnos (M2O + MO)/P2O5 gt 1, koje sadrži i mikroelemente Zn2+, Mn2+, Fe3+ i Cu2+, korišćeno je u supstratu za proizvodnju rasada cveća i povrća. Eksperimenti su izvedeni u stakleniku na Poljoprivrednom fakultetu u Beogradu i u laboratorijama ITNMS. Ispitivano je ponašanje polifosfatnog stakla prilikom rastvaranja u dejonizovanoj vodi i 2% rastvoru limunske kiseline na temperaturama od 20, 30, 37 i 50 °C. Ispitan je uticaj vremena rastvaranja na normalizovani gubitak mase (fm) i normalizovane koncentracije jona (fi). Određene su i konstante brzina rastvaranja(kw-dejonizovana voda, kc -2% rastvor limunske kiseline). Vrednosti kc su veće od vrednosti za kw, što potvrđuje uticaj rastvarača i temperature na proces rastvaranja. Rezultati su pokazali pozitivan efekat polifosfatnog stakla na rast i kvalitet ispitivanih biljaka. Primenjena doza polifosfatnog stakla od 1 gl-1 pokazala je najbolji efekat na rast ispitivanih biljaka-rasada.
Keywords:
polyphosphate glass / substrata / plant / seedlings / polifosfatno staklo / supstrat / biljka / rasad
Source:
Zaštita materijala, 2019, 60, 1, 96-104
Publisher:
  • Engineering Society for Corrosion, Belgrade, Serbia
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34001/RS// (RS-34001)
  • info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172004/RS// (RS-172004)

DOI: 10.5937/zasmat1901096V

ISSN: 0351-9465

[ Google Scholar ]
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4270
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet

DSpace software copyright © 2002-2015  DuraSpace
About TechnoRep | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutions/communitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About TechnoRep | Send Feedback

OpenAIRERCUB