Thesis Title:
Prediction of in-situ N mineralization from manures
Project Description:
Increasing strict legislation and growing concern for environmental well-being has prompted farmers to use manure more judiciously than before. However, these efforts are hampered by uncertainty of N mineralization prediction for manure-amended soils. Manure is applied based on its total nutrient content, without much emphasis on availability. Several studies have been conducted to predict N mineralization from manure-amended soils but most of these were conducted under laboratory conditions, which cannot simulate the high variability of field conditions. An accurate prediction of the amount of inorganic N released from manure is essential for the development of farming practices that maximize N use efficiency and minimize adverse impacts of N to the environment. The proposed study will fit and test model parameters’ credibility using a couple of field and laboratory incubation experiments to predict N mineralization as well as to provide information in memoir from different livestock manures. Effects of soil moisture and temperature on N mineralization will be determined. Nitrogen mineralization in the field will be determined using the resin exchange technique whose trend will be compared to that from followed laboratory incubation study. The proc REG procedure of SAS and single and/or double exponential models will be used to develop a predictive equation relating net N mineralization to manure type, soil temperature and soil moisture. This will enable farmers to estimate more accurately the application rate of manure based on soil microclimate during the growing season.
Supervisor:
Expected Date of Completion:
September 2012 (P/T)
Previous Degrees:
M.Sc. Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh (2004)
B.Sc. Agriculture, Sher-e-bangla Agricultural University, Dhaka, Bangladesh (1999)
Work Experience:
Assisstant Professor
Department of Soil Science, Hajee Mohammad Danesh Science and Technology University (HSTU)
Dinajpur-5200, Bangladesh
Publications:
Ahmed,T., Chowdhury,A.K.M.M.B., Sayem, S.M., and Karim,M.M. Impacts of integrated weed management in transplant aman rice. Int. J. Sustain. Crop Prod. 3(2):45-53, February 2008.
Dhar, M., Rahman, S.M., and Sayem, S.M. Maturity and Post Harvest Study of Pineapple with Quality and Shelf Life under red soil. Int. J. Sustain. Crop Prod. 3(2):69-75, February 2008.
Rahman,M. N., Islam, M. B. Sayem, S. M., Rahman, M. A., and Masud, M. M. Effect of different rates of sulphur on the yield and yield attributes of rice in Old Brahmaputra Floodplain Soil. J. Soil. Nature, 1(1): 22-26, March, 2007.
Islam, M. T., Khan, M. A., Khanom F., and Sayem, S. M. Effect of number of plants per hill and level of nitrogen on growth and yield of carrot. J. Bangladesh Soc. Agric. Sci. Technol., 3(3 and 4), 137-140, December, 2006.
Aziz, M. A., Miah, M. A. M., and Sayem, S. M. Performance of Sunray organic fertilizer on the growth and yield of wetland rice. J. Agric. Rural Dev. 4(1 and 2)137-141, June, 2006.
Islam, M. R., Mondal, M. F., Hossain, A. K. M. M., Rahman, M. M., and Sayem, S. M. Effects of mulching and levels of nitrogen on growth and yield of carrot. J. Sci. Tech. 2. 34-39, June, 2004.
Rahman, M. N., Sayem, S. M. Alam, M. K., Islam, M. S., and Mondol, A. T. M. A. I. Influence of sulphur on nutrient uptake by rice and its balance in Old Brahmaputra Floodplain Soil. J. Soil. Nature. 1(3); 05 – 10, November, 2007.
Siddiqui, A.T.S.U.A., Hossain, A.K.M. M., Rahman, M.M., Rahman, S.M., and Sayem, S.M.. Effect of phosphorus on growth and nodule formation of indigo plant under old hymalyan piedmont field condition. Int. J. Sustain. Crop Prod. 2(6):21-24, December, 2007.
Mamun, M. A., Hossain, A., Hossain, A. K. M. M., Rahman, S. M., and Sayem, S. M. Physical and chemical properties of some acid sulphate soils of Bangladesh Bangladesh J. Environ. Sci. 14(1); 142-147, 2008
Ali, M.E., Islam, M.R., and Sayem, S.M. Effect of combined use of different organic manures and chemical fertilizers on the yield and nutrient uptake of transplanting aman rice var. BRRIdhan31. J. Sci. technol.(Dinajpur) Vol.5: 41-48 (2007)
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