Depth Distribution of Soluble Salts of a Highly Saline Soil on Irrigation with Different Modes of Irrigation

摘要

An experiment was conducted in micro plots (5 m x 4 m) under pearl millet and berseem crop at the farm of CCS Haryana Agricultural University, Hisar to study the depth distribution of reactive and non reactive solutes on irrigation with different qualities of irrigation water. The mean Cl and Na concentration of the profile decreased after the harvest of pearl millet and at the sowing of berseem crop. The order of decrease in concentration of Cl and Na from the soil profile was canal > mixed > sewage. The concentration of Cl decreased from the top layer very sharply and accumulated in the lower soil layers. On the other hand Na concentration leached from whole of the profile under canal irrigation the degree of decrease was not as sharp as that of Cal and in mixed and sewage irrigation the concentration of Na decreased upto 90 cm below this depth there was some accumulation.