Effects of Cropping Pattern on Carbon Sequestration And Aggregate Stability of Soil in Long Term Agricultural Fields in Khulna, Bangladesh

Authors

  • Md Tareq Bin Salam Soil, Water and Environment Discipline, Khulna University, Khulna-9208, Bangladesh
  • Md Tipu Sultan Soil, Water and Environment Discipline, Khulna University, Khulna-9208, Bangladesh
  • Mehjabin Hossain Soil, Water and Environment Discipline, Khulna University, Khulna-9208, Bangladesh
  • Must Alima Rahman Agricultural Chemistry Department, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

DOI:

https://doi.org/10.3329/bjb.v50i4.57069

Keywords:

Soil carbon sequestration, Soil organic carbon, Aggregate stability, Carbon input, Carbon stock

Abstract

Effects of cropping pattern on soil carbon sequestration and their aggregate stability in long term agricultural fields was investigated in 2018. Four cropping patterns were selected that have been cultivated for last ten years. Results showed that Soil organic carbon (SOC) value was improved for vegetable field from 4.06 to 9.11 g/kg and carbon stock (20.14 Mg C ha/yr) as well as soil carbon sequestration rate was the highest in vegetable field (1.12 Mg C ha/yr). The logarithmic relationship between the C input and C sequestration rate showed the strong correlation (r = 0.72, p < 0.05). In terms of aggregate stability, vegetable field put the best result (0.41 mm) (p > 0.05). The straight-line relation between aggregate stability and Cstock established that they are strongly correlated (r = 0.81, p < 0.05). Finally, results indicated that Vegetable-Vegetable-Vegetable cropping pattern was the best soil carbon sequester along with the best aggregate stability.

Bangladesh J. Bot. 50(4): 1029-1034, 2021 (December)

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Published

2021-12-31

How to Cite

Bin Salam, M. T. ., Sultan, . M. T. ., Hossain, M. ., & Rahman, M. A. . (2021). Effects of Cropping Pattern on Carbon Sequestration And Aggregate Stability of Soil in Long Term Agricultural Fields in Khulna, Bangladesh. Bangladesh Journal of Botany, 50(4), 1029–1034. https://doi.org/10.3329/bjb.v50i4.57069

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