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International Agrophysics
wydawca:Instytut Agrofizyki
im. B. Dobrzańskiego
PAN
w Lublinie
ISSN: 0236-8722


vol. 21, nr. 2 (2007)

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Application of sodium hypochlorite in the technique of soil section preparation
(pobierz wersję PDF)
T. Głąb
Department of Machinery Exploitation, Ergonomics and Agronomy Fundamentals, University of Agriculture, Mjra Łupaszki 6, 31-198 Cracow, Poland

vol. 21 (2007), nr. 2, pp. 153-156
streszczenie Image analysis of soil section is often used by soil scientists in order to quantify the soil structure and macro-pore properties. During the computer image analysis the most difficult and error-burdened process is segmentation when pores and solid phase are detected. This paper presents a method of improving the image quality for computer analysis. Sodium hypochlorite was tested with respect to its bleaching effect for solid phase of soil. Different concentrations of NaClO and time of rinsing were tested. The results show that sodium hypochlorite increases the contrast between pores and solid phase and makes the process of image segmentation more precise. The optimum parameters of soil section bleaching are the concentration of 10 g l-1 available Cl and duration of 48 h.
słowa kluczowe sodium hypochlorite, soil structure, soil section