ORIGINAL RESEARCH International Journal of Recycling of Organic Waste in Agriculture (2021)10: 245-256 Doi: 10.30486/IJROWA.2021.1908103.1124 Soil Science Division, Bangladesh Agricultural Research Insttute, Gazipur, Bangladesh Department of Soil Science, Bangladesh Agricultural University, My- mensingh, Bangladesh IFDC Bangladesh - USAID RFS actvites, Dhaka, Bangladesh 1 2 3 M Jahiruddin m_jahiruddin@yahoo.com Introduction Composting of municipal solid waste (MSW) is a good option of solid waste management to protect the environment and to serve as a good source of organic fertilizers. The MSW includes the residential, commercial, and institutional solid waste generated daily in a city. The benefits of using MSW compost include its impact on soil chemical, physical and biological properties that will eventually improve soil productivity. However, marketed MSW compost is reported generally poor in essential plant nutrients and the crops do not respond to its exclusive addition. Many studies are done to combine chemical fertilizers with MSW compost to obtain better crop response; the approach is called integrated nutrient management (Aktar et al. 2018; Jahiruddin et al. 2012; Kavitha and Subramanian 2007). A good opportunity exists to improve the nutrient status of MSW compost through addition of some organic materials; literature pertaining to this type of work is highly limited. Torkashvand (2010) used molasses, office paper, sulfuric acid and paper mill sludge as mixing materials with municipal wastes Nitrogen, phosphorus and sulphur mineralization in soil treated with amended municipal solid waste compost under aerobic and anaerobic conditions Marufa Sultana 1 , M Jahiruddin 2* , M Rafqul Islam 2 , M Mazibur Rahman 2 , Md Anwarul Abedin 2 , Abdullah Al Mahmud 3 Received: 01 September 2020 / Accepted: 22 May 2021 / Published online: 25 July 2021 Abstract Purpose Our study had considered some organic amendments to enhance nutrient level of marketed municipal solid waste (MSW) compost for its potential use as fertilizer for growing crops in alluvial soils. Method We prepared three types of amended compost by mixing 20% mustard oil cake (MOC), and 30% poultry manure (PM) or cowdung (CD) or sugarcane press mud (SPM) with 50% MSW compost. The nitrogen (N), phos- phorus (P) and sulphur (S) mineralization study was done in soil treated with three amended and one unamended composts with three replications through an incubation experiment at a temperature of 25 ± 1°C for 82 days under aerobic (field capacity) and anaerobic (submerged) conditions. The mineralization data were fitted to the first-or- der kinetic model. Results The soil NO 3 - -N content was 2-3 times higher in aerobic condition than in anaerobic condition, while the NH 4 + -N was higher in anaerobic soils. The kinetic model reveals that poultry manure and sugarcane press mud had higher capability to supply N for use by the crops. The P release was the highest at day 15 with three-time higher availability in anaerobic condition. The S mineralization in soil was higher in field capacity than in submerged condition. Conclusion The compost mixture comprising MSW, MOC and SPM in a ratio of 5:2:3 demonstrated the highest cumulative N, P and S mineralization in both aerobic and anaerobic conditions. The N and S availability decreased while the P availability increased in submerged soils which result has fertilizer management implications for wet land rice crop. Keywords Kinetic model, N mineralization, P mineralization, S mineralization, MSW compost, Submerged soils