Author(s):

GK Yadav, AD Jagdhani, DD Sawale, Rajnish Yadav and LS Gurjar

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⁺, CO₃^2-, HCO₃^-, Cl^- and SO₄^2-, 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 MgSO_4, CaHCO_3, MgCl₂, CaSO_4, 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.

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