EFFECT OF VARIOUS TECHNIQUES ON THE DETERMINATION OF pH OF THE SODIC SOIL

Md. Imrul Hossain1, Md. Mosharaf Hossain Sarker1, Md. Shahadat Hossain1, Kazi Sanjida Begum1*
Journal of the Sylhet Agricultural University, Volume 10, Issue 2, 2023, Pages 47-58

Abstract:

Soil pH is regarded as a key variable in soils as it has an impact on a variety of soil properties and processes. An experiment was conducted at Soil Science Lab., Sylhet Agricultural University, Sylhet during November, 2020 to February, 2021 to observe the effects of different matrix, their mixing ratios and time lapse of reading on pH of surface and sub-surface sodic soils and to observe the relationship of different soil properties with pH. The study was conducted using factorial CRD with six replications. The experiment comprises with two factors, Factor A: mixing ratios of soil and matrix i.e. 1:1.0, 1:2.5 and 1:5.0 and Factor B: time of reading after mixing/stirring of soil and matrix i.e. reading after 30, 90 and 150 minutes. Six soil samples from six different locations have acted as six replications. A total of 12 soil samples (6 surface and 6 sub-surface soils) were analyzed for pH by using three matrixes (distilled water, CaCl2 and KCl). The mean pH values of saline soils measured in distilled water, CaCl2 and KCl, respectively, showed a distinct declining trend from high to low (pHH2O>pHCaCl2>pHKCl). The increase in dilution of the soil and matrix ratio showed a tendency to increase the soil pH value which can be expressed as pH1:1.0<pH1:2.5<pH1:5.0. Time after mixing/stirring of the soil and matrix affected pH values of the surface soil using distilled water. In most cases, increased pH values were found for RA150MM compared to RA30MM and RA90MM. Variations in relationship of soil pH and other soil parameters were so strong in saline soils.

Keywords:

Soil pH, sodic soil, mixing ratios, matrix, determination techniques


Full Text

PDF

211 Views


Cite this article

Md. Imrul Hossain1, Md. Mosharaf Hossain Sarker1, Md. Shahadat Hossain1, Kazi Sanjida Begum1*. 2023. EFFECT OF VARIOUS TECHNIQUES ON THE DETERMINATION OF pH OF THE SODIC SOIL, Journal of the Sylhet Agricultural University 10(2): 47-58.