| dc.description | Quality water for irrigated agriculture means quality soil health for crop
production. The impact of soil properties is an important criterion for the
management of crop production. Water quality refers to the characteristics of
water supply that will influence its suitability for a specific use, i.e., how will
the quality meet the needs of the users. During winter season less and
unequal distribution of rainfall affect on crop production. The situation is
turning from bad to worse day by day and now it is common in the NorthWest and South-West region of Bangladesh. Moreover in some areas there
are neither river nor canals, therefore, the only option left with the farmers is
groundwater. Groundwater is an important resource throughout the world.
Particularly in tropical countries like Bangladesh, where a vast majority of
the population depends on it for irrigation, drinking and industrial uses. | en_US |
| dc.description.abstract | A study was conducted to assess the quality of the soil and groundwater collected
from three thana of Dinajpur district in Bangladesh. 55 water samples and 15 soil
samples were collected from different locations for chemical analyses. The
standard parameter were pH, EC, TDS, Hr, Ca, Mg, Fe, Mn, Cu, Cl, HCO3, CO3.
SO,4, NOs, etc. The pH value indicated that the water was all most neutral to
slightly alkaline. Grading based on B and SSP reflected that all water was good to
excellent classes. Rating on TDS and SAR categorized the water as excellent. In
respect to hardness, water was moderately hard to soft class. All water was free
from RSC and belongs to the suitable category. EC and SAR revealed that water
samples were medium salinity and low alkalinity nature and was expressed as
C,S;. Other micronutrient like Fe, Zn, Mn and Cu were within the safe limit for
irrigating all types of agricultural crops. According to drinking standard, some of
the water was detected due to higher concentration of Fe and Mn ions. Other
pollutant likes Cl, Cu, Zn and SO, were within the safe limit. The soil of the
Dinajpur district was slightly acidic in reaction. The increasing tendency of EC in
soil of the study area might lead to soil salinity problem in future. The
concentration of P, S, Ca, Mg, Na, K, Na, Fe, Zn, Mn and Cu increased
significantly. Organic carbon and total nitrogen exhibited slight or no remarkable
change due to longterm irrigation. | en_US |
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