NAZRUL ISLAM1* and MD. OLIUL ALAM
1Former MS Student, Department of Soil Science, Bangladesh Agricultural University, Mymensingh and 2Upazila Agriculture Officer, Department of Agricultural Extension, Banaripara, Barisal, Bangladesh. *Corresponding author’s Email: oliulalam2@gmail.com
ABSTRACT
The study was conducted at the Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh during 2014 (Dry and Wet season) to identify the physical and chemical properties of saline soil. Soil samples were collected from 15 different locations under three districts namely Khulna, Bagerhat and Satkhira. The textural classes of the sampling spots found different in each location. Both the particle density and bulk density increased with increasing soil depth. Depth wise the porosity ranged from 37.10 to 44.92% and 35.34 to 43.20% at surface and subsurface soil. The PH varied from 7.01 to 8.24 at surface and 7.42 to 8.43 at subsurface soil in dry season but in wet season 6.05 to 7.78 at surface and 6.58 to 7.92 at subsurface soil. In both seasons Cation Exchange Capacity (CEC) and organic carbon contents decreased with increasing soil depth. The EC of soil ranged from 6.24 to 12.55 ds/m at surface and 4.83 to 11.95 ds/m at subsurface soil in dry season but in wet season varied from 2.15 to 5.75 ds/m and 1.23 to 4.54 ds/m at surface and subsurface soil. The cation such as Na+, K+, Ca+ and Mg+ were found to decrease with increasing soil depths (both seasons).
Keywords: Salinity, Particle density, Bulk density and Soil pH.