Assessment of salt accumulation through irrigation water in the soil of agriculture technical school, Manjri Farm, Pune

Abstract

An investigation was undertaken to study Seasonal Variation of Salts through Irrigation Water in the Soil of Agriculture Technical School, Manjri Farm, Pune, in the year 2018-19. 94 surface soil samples (0-22.5 cm depth) were collected in pre-monsoon (April-2018) and post-monsoon (October-2018) seasons. The ionic concentrations viz., Ca2+, Mg2+, Na+, K+, CO32-, HCO3-, Cl- and SO42-, were 1.13, 0.78, 0.13, 0.06, 0, 0.30, 0.81 and 0.93 me L-1, respectively in pre-monsoon season while post-monsoon results showed 1.00, 0.64, 0.12, 0.05, 0, 0.19, 0.57 and 0.81 me L-1. The dominant accumulated salt in soil was CaCl2 followed by MgSO4, CaHCO3, MgCl2, CaSO4, Na2SO4 and K2SO4. The ionic concentration and salt accumulation in soil were high in pre-monsoon than post-monsoon season. In post-monsoon season ion leached out with rainfall water beyond the root zone.