Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla

Svržnjak, Domagoj

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master's thesis

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The influence of application of various dispersants on the results of mehanical soil compostion analysis

Domagoj Svržnjak (2017)

University of Zagreb
Faculty of Agriculture
Department of Soil Science

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APA 6th Edition

Svržnjak, D. (2017). Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla (Master's thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:394933

MLA 8th Edition

Svržnjak, Domagoj. "Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla." Master's thesis, University of Zagreb, Faculty of Agriculture, 2017. https://urn.nsk.hr/urn:nbn:hr:204:394933

Chicago 17th Edition

Harvard

Svržnjak, D. (2017). 'Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 19 June 2019, https://urn.nsk.hr/urn:nbn:hr:204:394933

Vancouver

Svržnjak D. Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2017 [cited 2019 June 19] Available at: https://urn.nsk.hr/urn:nbn:hr:204:394933

IEEE

D. Svržnjak, "Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:204:394933

Cite this item: https://urn.nsk.hr/urn:nbn:hr:204:394933

Metadata

Title	Utjecaj primjene različitih sredstava za disperziju na rezultate analize mehaničkog sastava tla
Title (english)	The influence of application of various dispersants on the results of mehanical soil compostion analysis
Author	Domagoj Svržnjak
Mentor	Vedran Rubinić (mentor)
Committee member	Vedran Rubinić (predsjednik povjerenstva)
Committee member	Mario Sraka (član povjerenstva)
Committee member	Vilim Filipović (član povjerenstva)
Committee member	Ivan Magdić (član povjerenstva)
Granter	University of Zagreb Faculty of Agriculture (Department of Soil Science) Zagreb
Defense date and country	2017-09-08, Croatia
Scientific / art field, discipline and subdiscipline	BIOTECHNICAL SCIENCES Agronomy
Abstract	Mehanički sastav tla (MST) je postotni maseni udio primarnih čestica tla (pijeska, praha i gline). Jedna je od najvažnijih značajki tla, a laboratorijski se određuje nakon disperzije strukturnih agregata tla, i to najčešće različitim kemijskim sredstvima, a ponekad destiliranom vodom. Određen je MST 20 uzoraka (modioficiranom metodom HRN ISO 11277:2011), s tim da se svaki uzorak analizirao zasebno nakon dezagregacije Na–heksametafosfatom (Na–H) i Na–pirofosfatom (Na–P). Cilj je bio utvrditi postoje li značajne razlike u rezultatima analize, obzirom na izbor sredstva za dezagregaciju. Zaključeno je da Na–H i Na–P ne djeluju sasvim jednako na dezagregaciju, što u nekim slučajevima može utjecati na izmjereni udio pojedinih frakcija (rjeđe i na teksturnu oznaku tla). Daljnjim istraživanjima treba ispitati utjecaj ovih, ali i drugih, disperzivnih sredstava na rezultate analize MST, i tona uzorcima različite teksture, te različitih sadržaja humusa, Ca-karbonata i seskvioksida.
Abstract (english)	Soil particle size distribution (PSD) is the weight percentage of primary soil particles (sand, silt, clay).As one of the key soil features, it is determined in the laboratory after dispersing soil aggregatesusing mostly various chemical agents and sometimes distilled water.PSD of 20 soil samples was determined by modified HRN ISO 11277:2011, with each sample analyzed separately after using Na-hexametaphosphate (Na-H) and Na-pyrophosphate (Na-P). The aim was to testif there are significant differences in the results of the analysis, regarding the use of different dispersants. It is concluded that the effect of Na-H and Na-P on soil dispersion isnot completely equal. In certain cases, this can affect the measured weight percentage of some soil fractions (more rarely, also the soil textural name). Further studies should test the impact of these and other dispersants on PSD analysis, on soils with different texture, and varying contents of humus, Ca-carbonate and sesquioxides.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:204:394933
Study programme	Title: Agroekologija Study programme type: sveučilišni Study level: diplomski Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologija (magistar/ magistra inženjer/inženjerka agroekologija)
Type of resource	text
File origin	Born digital
Access conditions	Restricted access
Terms of use
Repository	Repository Faculty of Agriculture University of Zagreb
Created on	2017-09-18 11:57:31