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Title:Primerjava metod za določanje potrebnih količin sredstva za apnjenje na osnovi različnih parametrov kakovosti tal
Authors:ID Manjević Kopčič, Tjaž (Author)
ID Muršec, Mateja (Mentor) More about this mentor... New window
Files:.pdf MAG_Manjevic_Kopcic_Tjaz_2018.pdf (2,46 MB)
MD5: 01A223577C801B3C838B1D2DC3732F30
PID: 20.500.12556/dkum/c5cc46d3-cbcc-420d-bec6-dcd95919b8bf
 
Language:Slovenian
Work type:Master's thesis/paper
Organization:FKBV - Faculty of Agriculture and Life Sciences
Abstract:Magistrsko delo temelji na primerjavi treh različnih metod za določanje potrebnih količin sredstva za apnjenje na pretežno kislih tleh iz SV dela Slovenije. Reakcijo tal smo izmerili v treh različnih raztopinah (KCl, CaCl2 in Ca(CH3COO)2). Potencialna kislost tal v raztopini KCl se je gibala med 3,46 in 7,06 pH oziroma v raztopini CaCl2 med 3,80 in 7,21 pH, medtem ko je hidrolitska kislost v raztopini Ca(CH3COO)2 variirala med 6,05 in 7,45 pH. Ugotovili smo zelo močno povezanost med pH-vrednostmi potencialne kislosti v raztopinah KCl in CaCl2 (koeficient korelacije R = 0,96). Pri izračunu potrebne količine sredstva za apnjenje smo primerjali tri različne metode, ki upoštevajo različne parametre kakovosti tal: Schachtschabel, VDLUFA in Vukadinović-Lončarić. Potrebne količine sredstva za apnjenje so primerljive po metodi Schachtschabel in Vukadinović-Lončarić (povprečna izračunana količina apnilnega sredstva pri Vukadinović-Lončarić je bila 15 CaO (dt/ha), pri Schachtschabel pa 14 CaO (dt/ha)), medtem ko je metoda VDLUFA dala petkrat večje količine kot drugi dve metodi. Pri slednji metodi smo talnim vzorcem določili tudi teksturo tal in vsebnost organske snovi. Rezultati so pokazali, da je bila korelacija med vsebnostjo organske snovi in vsebnostjo gline neznatna (R = 0,15), med organsko snovjo in vsebnostjo peska prav tako neznatna (R = 0,18) in med organsko snovjo in vsebnostjo melja negativno šibka (R = –0,21). Zelo šibka je bila tudi korelacija med vsebnostjo gline in pH (R ≤ 0,11) oziroma med vsebnostjo organske snovi in reakcijo tal v KCl (R = 0,24).
Keywords:apnjenje, reakcija tal, kisla tla, kalcijev oksid (CaO), kalcijev karbonat (CaCO3)
Place of publishing:Maribor
Year of publishing:2018
PID:20.500.12556/DKUM-72910 New window
NUK URN:URN:SI:UM:DK:IIAMIKXF
Publication date in DKUM:20.12.2018
Views:1604
Downloads:249
Metadata:XML DC-XML DC-RDF
Categories:FKBV
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:12.12.2018

Secondary language

Language:English
Title:Comparison of determination methods for required liming material for soil liming based on various soil quality parameters
Abstract:This Masters thesis is based on a comparison of three different methods for determining the quantity of lime agent needed for the soils originating in the North-Western part of Slovenia. The soil reaction was measured in three different solutions (KCl, CaCl2 in Ca(CH3COO)2). The potential acidity of soil was measured to be between 3,46 and 7,06 pH in the KCl solution and between 3,80 and 7,21 pH in the CaCl2 solution, while the hydrolytic acidity in the Ca(CH3COO)2 solution was measured to be between 6,05 and 7,45 pH. We discovered a strong correlation (correlation coefficient R = 0,96) between the measurements of pH in solutions with KCl and CaCl2. In the second part of the thesis, we compared three different methods for the comparison of soil quality: Schachtschabel, VDLUFA and Vukadinović-Lončarić. We discovered that the methods of Schachtschabel and Vukadinović-Lončarić give similar values for the quantity of lime agent required (average quantity of the lime agent using the Vukadinović-Lončarić method was calculated to be 15 CaO (dt/ha), while the Schachtschabel method gave 14 CaO (dt/ha)), the VDLUFA resulted with a factor of five higher quantity of the lime agent. With the later we also determined the soil texture and organic matter content for the soil samples. The results show that the organic matter content and clay content are weakly correlated (R = 0,15), as well as organic matter content and sand content (R = 0,18) and negatively low correlation between the organic matter content and silt content (R = -0,21). Moreover, we found a very low correlation between clay content and pH (R ≤ 0,11) and organic matter content and reaction of soil in KCl (R = 0,24).
Keywords:liming, soil reaction, acid soil, calcium oxide (CaO), calcium carbonate (CaCO3)


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