Assessing the agricultural suitability of groundwater using SAR values in Nasrullaganj area, district Sehore, Madhya Pradesh

Abstract

The classification of irrigation waters with respect to SAR is based primarily on the effect of exchangeable sodium on the physical condition of the soil. Sodium-sensitive plants may, however, suffer injury as a result of sodium accumulation in plant tissue, when exchangeable sodium values are lower than those effective in causing deterioration of the physical condition of the soil. In the present study the SAR values for groundwater samples have been calculated to understand the suitability of groundwater in the study area. The highest value of SAR is reported to be 4.4 and the lowest value is 0.5 at two locations, the average value is 1.9. The values fall in the excellent category of Richards (1954) [4] classification, and is very suitable for the agricultural purposes.