Effect of Sewage on Physical and Chemical Properties of Soil in Unnao District (U.P.), India

This study was conducted during 2021-22 considering various vegetable growing farmers in Unnao District (U.P.), India to find out the effect of using sewage as the only source of irrigation to their crops. In this study, 250 surface soil samples collected from farmer’s field were analyzed for Physical as well as Chemical parameters. The physical properties of soils improved due to sewage application; Bulk density ranged from 1.04 to 1.42 Mg m-3 and particle density ranged between 2.61 to 2.88 Mg m-3 and Porosity ranged between 53.4 to 61.85 with mean of 56.87 percent. Chemical Parameters such as pH, E.C., O.C., Available N, P & K were also analyzed and the results indicated that soils had a mean normal pH of 7.2, E.C. of 0.76 dSm-1, O.C. of 56.80. Available nitrogen ranged from 565 – 1217 kg ha-1 with mean of 879.56 kg ha-1.The Phosphorus availability was found ranging from 14.40 – 33.5 kg ha-1 with a mean of 23.98 kg ha-1, while Potassium was found with a mean of 205.30 kg ha-1 in range of 174 – 235 kg ha-1.