抄録
Bangladesh has been divided into 30 Agroecological Regions (AEZs) and the applied agricultural research has currently been conducted on this basis. In context of the lack of enough information on mineralogy on the AEZ basis, an attempt has been taken to study mineralogy of important soils from all AEZs of Bangladesh in order to provide basic information for applied research. As a part of this attempt, the mineralogy of soils from ten representative soil series of AEZ 28, Madhupur Tract, has been reported in this paper. The soils were acidic in nature, had moderate to high amounts of clay, and the texture was medium (silt loam) to heavy (clay). The 2-20μm silt fraction was composed mainly of quartz, with small amounts of mica, plagioclase, K-feldspar and chlorite. Mica, kaolinite and the interstratified mineral of kaolinite and smectite were the predominant minerals in the <2μm clay fraction. The impact of mineralogy on the inherent potentiality of soils regarding crop production has been discussed.
