Land classification defines the value or quality of land for any one type of use. The classification of land according to its quality for agricultural use is made on the basis of physical characteristics of the land and the associated socioeconomic factors. Numerous methods of assessing land quality have been advised.
The quality of land has been measured by the physical and chemical characteristics of soil, as well as social and economic considerations of land. The chief physical properties of soil taken into account are texture, structure, pore, space, water holding capacity, organic matter, pH value and total soluble salts; and the chemical composition! Or fertility elements are nitrogen, phosphorous and potassium. For example, organic matter increases the chance of creating a physically fertile soil by strengthening structure, reducing the size of structural units, and strikingly increasing the moisture holding capacity of sandy soils. Equally important are the non-physical or socioeconomic conditions of land.