Testing of Agricultural Soil by Digital Image Processing

Soil Testing is the way to access the soil constituent which is useful to know fertility and acidity of the soil. This paper helps to determine the amount of fertilizer and pH of soil that must be applied. From Farmers perspective soil pH value plays an important role because growth of plants and vegetables based on pH factor present in the Soil. Generally soil pH is measured manually in Government Labs. There are various labs but instrument used for this is not available everywhere. So we need to implement calculation of soil pH by using digital Image Processing. Eighty soil samples were collected and their pH firstly tested in Government Soil Testing Lab, Agriculture College Nagpur and also it was determined by using digital image processing technique. On the basis of RGB values, pixels properties and their digital correlations, results showed that our pH values were approximately matching with results from Government Testing lab.