Reactive Nitrogen in Crop, Fishery and Livestock Sectors of Bangladesh


  • Md Mizanur Rahman Dept. of Soil Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
  • Jatish Chandra Biswas Soil Science Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh



Urea fertilizer, industrial effluents, manure, environment


Agriculture in Bangladesh is characterized by crop, fishery and livestock sectors. Urea-N is used in all three sectors. Crop sector plays a dominant role in urea consumption to supply of food for ever burgeoning population. Application of inorganic N fertilizer definitely increased agricultural productivity. This however playing a significant role in altering global nutrient budget, water quality, greenhouse gas emission, and ultimately affecting the global climate. Though cropping intensity and use of N fertilizer have increased, yield plateauing is a concern for food security. Recovery efficiency of N rarely exceeds 30% in both crop and fish culture, while remaining reactive N is a global concern. Different industries have emerged in the last decade producing huge amounts of effluents discharging to the environment without treatment which appeared as a potential threat in damaging and disintegrating the environment. Resultant negative effect from application of large amount of organic and inorganic fertilizers and feeds in fishponds is a matter of boundless anxiety as it might act as a source of reactive N. Livestock sector comprising poultry and dairy produce huge amount of manure annually which is equivalent to 0.30 million tons of N and because of poor manure management reactive N is spreading in the environment. Reluctant attitudes on these crucial issues might bring a disaster through stopping natural ecosystem functions of the environment from where ‘U’ turn will rather be impossible. Adoption of resource conservation strategies, judicial and optimum use of N fertilizers in all agricultural sectors, improved management of livestock manure and industrial effluents are strongly recommended for environmental sustainability.

The Agriculturists 2020; 18(1) 144-163


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How to Cite

Rahman, M. M., & Biswas, J. C. (2020). Reactive Nitrogen in Crop, Fishery and Livestock Sectors of Bangladesh. The Agriculturists, 18(1), 144–163.



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