engineering recuitment GATE CE 2023-24 Test Series Irrigation Engineering Water Requirement of Crops
A farmland consisting of fine textured soils is irrigated through ground water pumping. The ionic concentration of the ground water for Na+, Ca+2 and Mg+2 are 25, 4, and 2 milli-equivalents per liter respectively and the electrical conductivity is 200 micromhos per cm at 25° C. Compute the sodium absorption ratio (SAR) for the available source of irrigation water (rounded up to two decimal places).
Enter numerical value using the virtual keypad. Round off where necessary.