The treated industrial wastewater has been, continuously used for crop production in the water scares region of our country. Irrigation with agro-based industrial wastewater (treated paper mill effluent) though it initially increased the yield of many crops, over a period; it deteriorates the soil quality by addition of soluble salts in soil profile results in deflocculating of soil structure, reduced infiltration and waterlogging leads to yield reduction in some crops under poor management condition. A subsurface drainage experiment conducted with different (15, 20 and 25 m) lateral spacing in waterlogged saline-alkali soil revealed that, drainage system improves the soil quality parameters, like soil pH, soil EC, reduction in exchangeable cation, and reduction in exchangeable sodium percentage and increased the maize yield under different lateral spacing under treated effluent irrigation. | Effect of subsurface drainage system on maize growth, yield and soil quality
