Influence of land type and cropping on the distribution of micronutrients in Ganges river floodplain soils of Bangladesh

The soils of Ganges River Floodplain (GRFP), an important crop growing zone the country, are known to be widely deficient in micronutrients. study was conducted relate distribution and fate soil micronutrients relation land type, properties cropping practices GRFP.A total 52 locations were selected for sample collection from across GRFP, varied series pattern, analysed DTPA extractable iron (Fe), manganese (Mn), copper (Cu), zinc (Zn) hot water soluble boron (B). Most samples found Zn B, while a moderate number Fedeficient. major reason micronutrient deficiency high pH. Among four studied, Ghior most implying pedogenic differences among soils. Significant effect contrasting types on observed although not consistent. rice-rice pattern have slightly higher contents Mn, B compared rice-non-rice which might due longer submergence period under pattern. Dhaka Univ. J. Biol. Sci. 32(1): 91-105, 2023 (January)