Irrigation Water Quality Assessment of Chitra River, Southwest Bangladesh

Abstract

Narail Sadar Upazilla is a major agricultural productive region of Narail District, Bangladesh. The crop production here significantly depends on the Chitra River water for irrigation. The present study was undertaken with an aim to evaluate the usability of this river water for irrigation purpose during pre-monsoon, monsoon and post-monsoon. Sampling was conducted three times in each season both in high tide and low tide. The collected samples were analyzed for some physicochemical parameters including pH, electrical conductivity (EC), total dissolved solid (TDS), major cations (Na + , K + , Ca 2+ and Mg 2+ ) and major anions (The calculated chemical indices' values for the collected water samples during pre-monsoon indicate that this river water is chemically suitable for irrigation during pre-monsoon with respect to sodium adsorption ratio (SAR), residual sodium carbonate (RSC) and permeability index (PI). The values of all chemical indices declare this river water fitness for use in irrigation both in monsoon and post-monsoon. According to Wilcox diagram, all of the water samples irrespective of tide and sampling stations fall within "permissible to doubtful" category during pre-monsoon while the water samples collected in both tide from all stations fall within "excellent to good" category during monsoon and post-monsoon. The United States Salinity Laboratory (USSL) diagram certifies this river water as C1-S1 (low salinity along with low sodium level) type during monsoon and post-monsoon which makes the river water suitable for use in irrigation in these two seasons while the water is mostly C3-S1, C3-S2 and C3-S3 (high salinity along with low to high sodium level) type in pre-monsoon which makes the river water restricted for use in irrigation in this season.

Effect of Industrial Effluent on Irrigation Water Quality of Choba River in the Niger Delta Region of Nigeria

“…This implies that water from all sections of the study area except section D was good for irrigation and will not impair the movement of water through the soil pores thus, preventing flooding while that of section D is not suitable for irrigation purpose and could cause impermeability problems if such water is used over a long period of time. The varying conditions of the irrigation water quality along the Choba river is similar to previous works [33,34].…”

Effectiveness of Aqueous, Alcoholic Extracts and Fertilizing of Jatropha curcas Leaves in the Control of Blossom end Rot of Fruit in Tomato

“…These massive inputs, intended to increase the production capacity of the soil, will profoundly modify the environment and the evolution of the soil by increasing humidity and salt inputs. This irrigation water was moderately acidic (pH=5.94) nonsaline with an electrical conductivity (EC) of 110.47 s / cm and a dissolved solute content (TDS) of 55.37 mg / l. This water would be usable for the irrigation of most crops on most soils, with little chance of the appearance of salinity in the soil according to the work of [25,26,17]. According to these authors, good irrigation water should have its pH in the range 6.5 -8.4, EC less than 250 s / cm and TDS less than 450 mg/L.…”

Assessment of the Physicochemical Quality of Irrigation Water and Soil for Sustainable Irrigated Rice Cultivation: Case of Irrigated Perimeter of M’Bahiakro (Central-East of Côte d’Ivoire)

“…The Kelly coefficient (KC), on the other hand, is an important parameter that measures the ease of use of irrigation water [31]. Waters with a KC < 1 are classified as "suitable" for crop irrigation, while waters with a KC > 1 are considered "unsuitable" [32] [33].…”