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Muslem, M., Farid, A.T., Miah, M.A., Jahiruddin, M., Rahman, A.M., Quayyum, M.A., Sattar, M.A., Motalib, M.A., Islam, M.F., Ahsan, M. and Razia, M.S. (2005) Fertilizer Recommendation Guide. Bangladesh Agricultural Research Council, Farmgate, Dhaka, 1215.

has been cited by the following article:

• TITLE: Soil Organic Fractions in Cultivated and Uncultivated Soils of Costal Area in Bangladesh

  AUTHORS: Ipsita Sarkar, Md. Zulfikar Khan, Md. Hanif

  KEYWORDS: Particle Size Fraction, Soil Organic Carbon, Nitrogen, Saline Soil

  JOURNAL NAME: Journal of Agricultural Chemistry and Environment, Vol.8 No.3, August 8, 2019

  ABSTRACT: Assessment of soil organic matter fractions can be instrumental in understanding the causes of limited nitrogen supply, and thus soil fertility restoration. A study was conducted in cultivated and uncultivated saline soil, in order to assay soil organic carbon (SOC), its particle-size fractions and their influence on cultivation and soil fertility at Sundarbans costal area in Bangladesh. Soil samples were taken from the 0 - 15 and 15 - 30 cm depths from four cultivated fields and from four nearby sites in a native mangrove forest as references. Soil samples were physically fractionated into sand (2000-50 μm), silt (50-2 μm) and clay ( silt > sand. The SOC pool and N in the clay-sized fraction were correlated to soil fertility indicators. More N was stored in the silt + clay size fractions, a generally more stable pool, than in the more labile sand-sized pool. The SOC pool in sand size fractions was far below in cultivated soils than in a reference uncultivated soil. Thus, the sand-sized pool emerged as the most likely cause of limited N supply in cultivated soils.