ASSESSMENT OF SEASONAL FLUCTUATION OF NUTRIENTS IN THE WATER AT DIFFERENT LOCATIONS OF KALAPARA ....

Seasonal variations in water quality are possible. Chemical characteristics of water in summer, rainy, and winter seasons were observed in Kalapara upazila, Bangladesh in 2019-2020 for designing a nutrient management strategy. pH, EC, TDS, P, K, Na, Ca, Mg, and S were all measured in the samples. The winter season had the highest water pH, EC, TDS, Ca, Mg, Na, and K levels, while the rainy season had the lowest. The pH, EC, TDS, Ca, Mg, Na, K, P, and S values in the water during the summer season were 5.80-7.95, 245-1595 S/cm, 156.80-1020.80 mg/L, 11.46-54.24 ppm, 11.33-45.39 ppm, 156.0-3872.35 ppm, 19.49-98.74 ppm, 0.142-0.789 ppm, and 13.00-54 Water pH, EC, TDS, Ca, Mg, Na, K, P, and S readings in the rainy season ranged from 5.20-6.94, 112-1150 S/cm, 71.68-736 mg/L, 10.23-51.25 ppm, 9.25-40.46 ppm, 40.21-381.22 ppm, 10.26-36.93 ppm, 0.326-2.610 ppm, and 13.90-74.80 ppm The pH, EC, TDS, Ca, Mg, Na, K, P, and S values in the water during the winter season were 6.30-8.10, 406-2852 S/cm, 259.84-1825.28 mg/L, 13.12-69.07 ppm, 12.59-61.99 ppm, 163.63-4048.97 ppm, 21.46-99.55 ppm, 0.261-1.120 ppm, and 8.20-44 The winter season had the highest nutritional content in water of all the seasons.

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