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Suitability Study of Some Surface Water Samples of Madhupur Tract for Irrigation, Aquaculture and Livestock Consumption

MU Nizam
Department of Agricultural Chemistry Patuakhali Science and Technology University, Potuakhali, Bangladesh.

MW Zaman
Department of Agricultural Chemistry Bangladesh Agricultural University Mymensingh 2202-Bangladesh.

MM Rahman
Department of Agricultural Chemistry Bangladesh Agricultural University Mymensingh 2202-Bangladesh.

MS Islam
Upazila Agriculture Officer
Department of Agriculture Extension, Dhaka, Bangladesh.

Abstract/ Executive Summary:

Surface water samples from beel , river and canal of Madhupur Tract in Bangladesh were collected and analysed to find out the suitability of those water for irrigation, aquaculture and livestock consumption . Most of the samples were alkaline in nature only two samples were found acidic (pH 4.25 and 4.00). Out of 17 samples, 11 were limiting for irrigation and 15 were unsuitable for aquaculture with respect to pH values. Electrical conductivity (EC) rated maximum samples as “good” category for irrigation. TDS categorized the samples as “fresh water” for irrigation and were suitable for livestock, drinking and aquaculture. Chloride content of a few samples were beyond recommended limit for livestock. Micronutrient concentrations were alarming for livestock and aquaculture. Cu, Mn, Fe and Zn quantities categorized all the samples unsuitable for aquaculture. Most of the samples were also unsuitable for livestock due to higher Fe and Mn contents. Ca, Na, K and P quantities of all the samples were within safe limit for irrigation, aquaculture and livestock, but Mg contents of 8 samples were above recommended limit for aquaculture. Boron level classified 4 samples as “good”13 as “excellent” for irrigation. SAR and EC combinedly rated all the samples as “medium salinity” and “low alkalinity” class (C2S1) and hardness categorized the waters in “soft”, “moderately hard” and “hard water” class for irrigation. Considering all parameters not a single sample was found suitable for irrigation, livestock consumption, and aquaculture.

Keywords: Madhupur tract , Suitability , Surface water , Irrigation, Aquaculture, Livestock consumption

Location: Beel, river, canal and ponds of Madhupur Tract in Bangladesh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Water quality

Objectives:

To find out the suitability of those water for irrigation, aquaculture and livestock consumption .

Methodology:

Seventeen surface water samples were collected from the Beel, river, canal and ponds of Madhupur Tract in Bangladesh following methods outline by APHA. The analytical works were performed in the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh. The pH, EC and TDS were determined following methods. CO₃ and HCO₃ were determined acidimetrically and argentometric titration was followed for the determination of Cl. Ca and Mg were determined by complexometric method. Na and K were determined flame photometrically while Zn, Cu, Fe and Mn were determined with the help of AAS following method. Spectrophotometric method was followed for the determination of P and B. Sodium adsorption ratio (SAR), soluble sodiu m percentage (SSP), residual sodium carbonate (RSC) and hardness (H_T ) of samples were calculated following standard formula mentioned. Quality rating of the samples for irrigation was done following standard as mentioned. Statistical analyses were done following methods outlined by Gomez and Gomez with the help of computer package M - STAT.

Source of Information: Progressive Agriculture 25:9-16, 2014, ISSN: 1017 - 8139

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From results of chemical analysis of the water samples and comparison of the values with international standard recommendations of different organization and authors regarding irrigation, aquaculture and livestock drinking, it was found that elemental pollution existed in the surface water sources of Madhupur Tract. When one sample was found suitable for irrigation then it was unsuitable for aquaculture, on the other hand when another was found suitable for aquaculture then it was unsuitable for livestock consumption. None of the sample was found suitable for all the three purposes, irrigation, livestock drinking and aquaculture. Finally it can be concluded that the chemical quality of surface water sources of the study area must be checked to know its suitability for definite purpose and it will be help to protect any economic damage of field crops, fishes and livestock.

Knowledge Management: Journal