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prof. Ing. Dušan Igaz, PhD.
Identification number: 1561
University e-mail: dusan.igaz [at]
Dean - Faculty of Horticulture and Landscape Engineering

Supervised theses

Basic information

Basic information about a final thesis

Type of thesis:
Diploma thesis
Thesis title:
Analysys of soil moisture changes after application of biochar
Written by (author): Ing. Lucia Toková
Department: Department of Biometeorology and Hydrology (FZKI)
Thesis supervisor: prof. Ing. Dušan Igaz, PhD.
Ing. Peter Šurda, PhD.
Final thesis progress:
Final thesis was successfully defended.

Additional information

Additional information about the final thesis follows. Click on the language link to display the information in the desired language.

Language of final thesis:

Slovak        English

Title of the thesis:
Analysys of soil moisture changes after application of biochar
Positive effects of biochar on hydrophysical soil properties were uncovered in previous studies. In 2014 agricultural experiment on the research area in Dolná Malanta was established, in order to verify this hypothesis. This experiment was composed of several variation trials with various doses of biochar and nitrogen. The main goal of this diploma thesis was to interpret the influence of biochar in various doses on the surface moisture and analyzing these changes. For the detection of surface soil moisture two methods were used gravimetric and TDR method. For better interpretation of results linear dependence was needed to calibrate both of methods. By studying the regression lines in all variantions we have reached very interesting facts, that in variations with the dose of nitrogen there is considerable deviation from the variation of control, which menas, that the nitrogen has influence on detection of TDR. For realization of the main goal we needed to start from the data, which was measured with gravimetric method, whereby the volume moisture was defined by four variation of trials B0+N0, B20+N0, B20+N160, a B20+N240. The positive effect of biochar on soil moisture cannot be shown in the year 2017. Biochar of the amount of 20 t.ha-1 with 240 kg.ha-1 of nitrogen raised the soil moisture, but not as considerably as in the previous years.
Key words:biochar, soil moisture, gravimetric method, TDR calibration

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