Pattern of organic residue decomposition in saline soils of Bangladesh

Dr Mohammad Ekram Ul Haque1, Ms Sumaiya  Ahmed1, Dr Lee Heng2

1Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh, 2Soil and Water Management and Crop Nutrition Section, IAEA, Vienna, Austria

A pot experiment was conducted to investigate the decomposition of incorporated organic  residues  in saline soil at the Laboratory of Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh. The experiment was arranged in completely randomized design (CRD) with three replications involving four levels of salinity , S0 = non saline water (0.7 dS m-1), S1 = 5 dS m-1 saline water, S2 =10 dS m-1 saline water and S3 = 20 dS m-1 saline water and three treatments of organic crop residues (C0 = no incorporation of crop residue, C1 = incorporation of rice residue @ 10 t ha-1 and C2 = incorporation of groundnut residue @ 10 t ha-1). Decomposition rate of organic crop residues were decreased with the increase of salinity level irrespective of crop residues. The decomposition rate of crop residues varied between 0.63 and 0.71 % per day. The highest decomposition rate (0.71% per day) was observed in non saline soil (0.7 dS m-1 salinity level) and the lowest decomposition rate (0.63% per day) was observed at 20 dS m-1 salinity level.  The decomposition rate of groundnut residue (0.72% per day) was higher compared to rice residue (0.64% per day). Approximately, 58.02% rice and 64.68% groundnut residues were decomposed within 90 days of incubation.  The overall results suggest that organic residue decomposition was inversely correlated to the extent of soil salinity.


Biography:

Short CV

  1. NAME: MOHAMMAD EKRAM UL HAQUE
  2. ACADEMIC QUALIFICATION: Ph.D., Microbiology (N fixation: Nuclear Technique )

Research Experience:

  1. From 2013 – Uptodate: Principal Scientific Officer (PSO) and Project Director, SRSD, BINA Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh
  2. From 2009 – 2013: Principal Scientific Officer, Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh
  3. From 2001 – 2009 Senior Scientific Officer (SSO), Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh
  4. From 1994 – 2001 Scientific Officer (SO), Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh
  5. From 1992 – 1994 Scientific Officer (SO), Potash Project, Soil Resources Development Institute (SRDI), Dhaka, Bangladesh

 

Research involvement:

  1. FAO/IAEA/RAS Project (2016 – Up to date): Actively engaged myself as a Chief Research Investigator of FAO/IAEA/RAS project No. 5073 titled, “Supporting Climate Proofing Rice Production Systems (CRiPS) Based on Nuclear Application in Bangladesh” and also involved as a Project Counter Part of Bangladesh.
  2. IAEA Expert Mission: Successfully completed the IAEA Expert Mission to assist with implementing isotope techniques in field experiments, Mandalay, Myanmar during 3 – 7 February, 2014.
  3. FAO/IAEA Coordinated Research program (2013 – Up to date): Actively engaged myself as an Chief Research Investigator of the FAO/IAEA Coordinated Research project No. 17732 titled, “Landscape Salinity and Water Management in Coastal Region of Bangladesh for Improving Agricultural Productivity” from 2013.
  4. FAO/IAEA/RAS Project (2012 – 2015): As a Counter Part of Bangladesh, successfully completed the FAO/IAEA/RAS project No. 5065 titled, “Supporting Climate Proofing Rice Production Systems (CRiPS) Based on Nuclear Application in Bangladesh”.
  5. IAEA Research Fellow: Successfully completed the IAEA Research Fellowship training program on “ Study the effects of crop residue application on soil organic matter dynamics” in the laboratory of Soil Biology and Soil Fertility, University of Leuven, Belgium, during 01st October to 20th  December’ 2002.
  6. FAO/IAEA Coordinated Research program (1996-2000): As a Research Co-Investigator successfully completed the FAO/IAEA/CRP/8895 Project titled” Soil Organic Matter Turn Over Studies—“ during 1996-2000.
  7. FAO/IAEA Coordinated program ( 1994-1998) :

Engaged myself as an research investigator of the FAO/IAEA Coordinated Research project

No. BGD/8040 titled, “Isotope aided studies on nitrate movement in irrigated wheat” during

1994 – 1998.

  1. RELAVENT PUBLICATIONS

 

  1. M.E. Haque and M.A. Sattar, 2010. 15N aided studies on Legume Nitrogen fixation in Tista Meander Floodplain soils of Bangladesh. A paper published on DVD of 19th World Congress of Soil Science, Soil Solutions for a changing World, 1-6 August, 2010, Brisbane, Australia, P.1-4.
  2. M.E. Haque and M.A. Sattar, 2012. Legume nitrogen derived from different sources as affected by rhizobial inoculant in Bangladesh soil. A paper accepted for oral presentation at the FAO/IAEA International Symposium on Managing Soils for Food Security and Climate Change Adaptation and Mitigation to be held in Vienna, Austria, 23-27 July, 2012,
  3. M.E. Haque and M.A. Sattar, 2009. Nitrogen fixation by legumes and residual N benefits to succeeding rice in High Ganges River Floodplain soils of Bangladesh. Proc. 16th N workshop, Turin, Italy. P. 417-418.
  4. Rahman, S.M.; M.E. Haque and M.A. Khalil, 1997. Organic matter management for increased and sustainable agricultural production in Bangladesh. Fertilization for Sustainable Plant production and fertility. Proceedings of the 11th World Fertilizer Congress, vol. 1:703-709.
  5. Khalil , M.I. ; S.M. Rahman ; M.E. Haque and M. Badruzzaman, 1999. Studies on the phenology and nature of N uptake pattern at different levels of N application in irrigated wheat. Bangladesh J. of Nuclear Agriculture, Vol.15:41-50.
  6. M.E. Haque and M.S. Islam, 1998. Potassium mineralogy of sand fraction of Bangladesh soil. Bangladesh J. of Env. Sci., vol. 4:43-50.

SOIL ORGANIC MATTER

7th International Symposium
Soil Organic Matter

6 – 11 October 2019

Hilton Adelaide

Adelaide, South Australia

Australia

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