Abstract:
A field study was conducted to determine the impacts of salinity on soil properties at
Babuganj, Bakerganj, Gournadi and Kalapara upazila during the period of July to
September 2016. Soil sampling was done by random sampling method at 0-50cm and 50100cm
depth.
Salinity
has a detrimental effect on soil physical and chemical properties.
The dominant soil textural classes in the saline areas are silty clay. The soils pH of the
surface horizon is slightly lower than those of the subsoil and sub stratums. Cation
Exchange Capacity (CEC) of all these soils varies from 12.83 to 20.92meq/100 g soil.
Electrical conductivity (EC) of all these soil varies from 1.23 dS/m to 6.6 dS/m at
Babuganj, Bakergnaj and Gournadi and moderately saline at Kalapara. The organic
matter content is medium to high (0.62 to 1.6)% at Kalapara and Bakerganj, pretty low
(0.39 to 1.03)% at Babuganj and Gournadi. Nutrient deficiencies for total nitrogen were
quite dominant in the study area. Exchangeable sodium, potassium, calcium and
magnesium were in high level. The dominant water soluble anions were Cl
.
The amount of accumulated salt was found higher at the surface and decreases with
depth.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University,
Dhaka, in partial fulfillment
of the requirements
for the degree
of
MASTER OF SCIENCE
IN
AGROFORESTRY & ENVIRONMENTAL SCIENCE
