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Vinay Kumar Binod Kumar Vimal Rakesh Kumar Rakesh Kumar Mukesh Kumar

Abstract

Soil is recognized as one of the most valuable natural resource whose soil pH property used to describe the degree of acidity or basicity which affect nutrient availability and ultimately plant growth. Fifty soil samples were collected and their pH was determined by using digital image processing technique. Soil colour is visual perceptual property corresponding in humans to the categories i.e red, green, blue and others. Soil colours are the parts of visual perceptual property where digital values of red, green and blue (RGB) provide a clue for spectral signature capture of different pH in soil. For the capturing images, digital camera was used. Transformation of the multispectral image was carried out through TNT Mips spatial software. On the basis of RGB grey values, pixels properties and their digital correlations, results showed that there was a clear cut gap in grey values of colours in the images 1, 2, 3, 4,10,11,14 and 16. Ranges of soil pH and pH index values were 7.30-7.50 and 0.0070-0.0261, respectively in deep brown colour. Similarly, soil pH range varies from 6.80-7.04 and 5.58-6.58 in light yellowish and greenish colour respectively while their corresponding pH index values were 0.0071-0.0451 and 0.0084-0.0239. Thus soil pH range varies from 7.30-7.50, 6.80-7.04 and 5.58-6.58 in deep brown colour, light yellowish colour and greenish colour respectively.

Article Details

Article Details

Keywords

Colour, Digital images, Signature capture, Soil pH

References
Bear, F.E. (1965). Chemistry of the soil, (2nd edition) Reinhold Publication Corporation, New York.
Buckman, H.O. and Brady, N.C. Weil, R.R. (2002). The nature and properties of soils, 13thEdition. Prentice Hall.
Carper, W.J., Lillesand, T.M. and Kiefer, R.W. (1990). The use of intensity-hue-saturation transformations for merging SPOT panchromatic and multispectral image data. Photo-grammetric Engineering and Remote Sensing, 56(4): 459-467.
Joseph, G. (2003). Fundamentals of remote sensing, University Press, Hyderabad pp, 65-66.
Lillesand, M.T. and Kiefer, W.R. (2004). Remote sensing and Image Interpretation, Replica Press Pvt. Ltd. Pa: 545-546.
Panda, B.C. (2009). Remote sensing: Principle and application. Viva Books Pvt Ltd.
Sawhney, J.S., Verma, V.K., Sharma, B.D. and Sharma, P.K. (1992). Pedogenesis in relation to physiography in semi-arid and arid tracts of Punjab, India. Arid Soil Research and Rehabilitation, 6:93-103.
Sehgal, J. (1996). Pedology: Concepts and Applications, Kalyani publisers, New Delhi.
Sharma, B.D., Mukhopadhaya, S. and Sidhu, P.S. (1999). Microtopographic control on soil formation in the Punjab region, India. Geoderma, 81: 357-368.
Section
Research Articles

How to Cite

Determination of soil pH by using digital image processing technique. (2014). Journal of Applied and Natural Science, 6(1), 14-18. https://doi.org/10.31018/jans.v6i1.368