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master's thesis
Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije
2016. urn:nbn:hr:151:795625
Gavranović, Paula
Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
Department of agroecology and Enviroment Protection

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Gavranović, P. (2016). Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:795625

Gavranović, Paula. "Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:151:795625

Gavranović, Paula. "Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:151:795625

Gavranović, P. (2016). 'Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 13 February 2025, https://urn.nsk.hr/urn:nbn:hr:151:795625

Gavranović P. Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2016 [cited 2025 February 13] Available at: https://urn.nsk.hr/urn:nbn:hr:151:795625

P. Gavranović, "Model usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:151:795625

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TitleModel usporedbe različitih metoda ekstrakcije kalija u tlima istočne Slavonije
Title (english)Comparations model for different potassium extraction methods in eastern Slavonia soils
AuthorPaula Gavranović
MentorBrigita Popović (mentor)
Committee memberVladimir Zebec (predsjednik povjerenstva)
Committee memberVladimir Ivezić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(Department of agroecology and Enviroment Protection)
Osijek
Defense date and country2016-07-01, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Crop Production
Abstract
Cilj ovog rada bio je definirati različite metode ekstrakcije kalija u tlima Slavonije te njihovom usporedbom odrediti korelacije i kreirati model predviđanja koncentracije kalija temeljem osnovnih svojstava tla i ostalih ekstrakcijskih metoda. Na uzorcima tala uzetih s ratarskih površina istočne Slavonije (na različitim lokalitetima: Donji Miholjac, Rakitovica, Badljevina, Zelčin) na dubini od 0-30 cm provedene su laboratorijske analize osnovnih kemijskih svojstava tla: pH tla, sadržaj humusa u tlu bikromatnom metodom, koncentracija AL-pristupačnog kalija, te analize dopunskih svojstava tla: određivanje sadržaja karbonata u tlu. Od metoda koje su se koristile: AL metoda, AA metoda, AAEDTA metoda, Bray metoda, u obzir su se uzeli samo rezultati AL i AA-EDTA metode zbog brojnosti rezultata. Ovim dvjema metodama izvedeni su neki od sljedećih zaključaka: ekstrakcija kalija AA-EDTA metodom rezultira nižim vrijednostima u odnosu na ekstrakciju AL metodom prosječno 91% za sva tla u rasponu pHKCl 3,5-7,7. Različiti odnosi rezultata AA-EDTA i AL metoda na različitim pokusima i lokalitetima upućuju na zaključak da je model osjetljiv i na druga svojstva tla, što može omogućiti kreiranje još osjetljivijih i preciznijih modela uz dopunska istraživanja. AA-EDTA metoda može se sa sigurnošću koristiti za izradu preporuka gnojidbe kalijem, a pri tome se mogu koristiti iskustva gnojidbenih preporuka, provedenih gnojidbi i ostvarenih prinosa na temelju rezultata AL metode.
Abstract (english)
The aim of this paper was to define different methods of potassium extraction in Slavonija soils. Also, the correlations between different methods were determined and predictive modeling of potassium concentration was created based on basic soil caracteristics and other extraction methods. In the soil samples taken from the feild area of Eastern Slavonija (on different localities: Donji Miholjac, Rakitovica, Badljevina, Zelčin) at a depth of 0-30 cm laboratory analysis of the basic chemical properties of the soil were carried out: soil pH, humus content in the soil with dichromate method, concentration of AL-accessible potassium and the additional analysis of soil properties: the determination of the carbonate content in the soil. From the methods wich have been used: AL, AA, AA-EDTA, Bray, because of large number of informations, only AL i AA-EDTA methods have been considered in further investigation. Within these two methods, the following conclusions have been given: potassium extraction with AA-EDTA method has lower values according to extraction with AL method, on average 91% for all soils in the range of pHKCl 3,5-7,7. Further, pH reaction of soil significatly affects the ratio of AL and AA-EDTA extracted. Different ratio of the results of AA-EDTA i AL methods in different trials and localities suggest that the model is sensitive on other soil properties as well, which can enable the creation of more sensitive and accurate models with additional research. AA-EDTA method can be safely used for making fertilizer potassium recommendations.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:151:795625
Study programmeTitle: Plant Production; specializations in: Plant Production, Plant Nutrition and Soil Science, Plant Selection and Seed Production, Plant Protection
Course: Plant Nutrition and Soil Science
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka bilinogojstva (magistar/ magistra inženjer/inženjerka bilinogojstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Public notediplomski rad
Created on2016-09-16 08:10:41