Mohamed Abdugadir Hassan1&2, Bikash C Sarker2 and Hassan Nuur Ismaan3
1Zamzam University of Science and Technology, Mogadishu, Somalia, 2Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, 3Somali Agriculture Research and Technology Center (SARTEC), Mogadishu, Somalia.
*Corresponding author: bkash@hstu.ac.bd
Article history: Received: 07.01.2021, Accepted: 28.04.2021, Published: Online: 30.04.2021
To cite this article: Hassan, MA, Sarker BC and Ismaan HN. 2021. Water quality analysis and suitability assessment for irrigated agriculture in Dinajpur sadar, Dinajpur district of Bangladesh. Int. J. Agric. Med. Plants. 2(2): 33-41.
ABSTRACT
Water quality bears an utmost importance in irrigated agriculture, domestic uses, industrial and some other purposes for productivity, quality, public health and environmental issues. A laboratory experiment was performed to determine the chemical constituents of groundwater for crop production in Dinajpur sadar upazila under Dinajpur district of Bangladesh. Thirty groundwater samples were collected from different areas of sadar upazila for the evaluation of chemical constituents. Groundwater samples collected from selected areas were classified by examining chemical constituents present therein. Several parameters like pH, EC, TDS, Ca, Mg, Na, K, SO4, PO4, HCO3, Fe, Cu, Zn, Mn, and calculated parameters like SAR, SSP and HT, respectively, were considered for the suitability assessment. The pH value of all the water samples fluctuated from 6.16 to 7.51 indicating slightly acidic to slightly alkaline and found suitable for irrigation. EC and TDS values of water samples were found suitable. In the study areas, the water contained an appreciable amount of Ca, Mg, Na and K. The concentrations of SO4 and PO4, Fe, Cu, Zn and Mn, were found within safe limit for irrigating crops. On the basis of EC and SAR, all the waters were found excellent for irrigated agriculture. SSP values of all samples were rated as excellent, five samples were good, 15 samples were permissible and 10 samples were doubtful classes for crop prediction. On the basis of HT, three samples were moderately hard, 16 samples were hard and the rest 11 samples were very hard categories. Finally, water samples were suitable for crop production. It is advised that water should be analyzed systematically for understanding the impact of dissolved ions in water on the quality crops for prolonged uses.
Keywords: Irrigated agriculture, ionic concentration, water quality.
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