Simulation of Salinity Profile of a Highly Saline Soil on Irrigation with Different Modes of Irrigation

摘要

An experiment was conducted in micro plots to observe and simulate the salinity profiles of arnhighly saline soil with different qualities/modes irrigation. The EC1:2 of the soil profile decreased withrnsuccessive irrigations. There was a decrease in EC1:2 in the upper soil layers and accumulation of saltrnin the lower layer both after the harvest of pearl millet and at sowing of berseem crop. The model ofrnPal et al. (1990) was used to simulate the depth distribution of EC1:2. The observed and the simulatedrnEC1:2 profiles were compared. The results showed reasonably good agreement between the twornvalues for all the treatments both after the harvest of pearl-millet and at the time sowing berssemrncrop, except in the second layer (10-20 cm), where it under predicted the EC1:2 values .