An experiment was conducted with ten different rice-based cropping systems T1 – Rice-rice-blackgram; T2 – Rice-rice-sesame; T3 – Dhaincha-rice+dhaincha(5:1)-blackgram; T4 – Sunn hemp-rice+dhaincha-greengram; T5 – Blackgram-rice-groundnut; T6 – Greengram-rice-sesame; T7 – Fodder cowpea-rice-fodder maize; T8 – Fodder sorghum-rice-fodder cowpea; T9 – Maize hybrid-rice-bhendi+blackgram; T10 – Ragi-rice-cluster bean+blackgram during different seasons (kharif, rabi and summer), 2021-2022 in the intensively cultivated sandy loam soils of Thanjavur district, Tamil Nadu, India. Samples were collected from different cropping systems in the experimental plot at post-harvest stage during kharif, rabi and summer seasons. Soil samples were examined and analysed for soil chemical properties in the Department of Soil Science and Agricultural Chemistry, Coimbatore, Tamil Nadu, India. Results from the study revealed that highest values of chemical properties like available N, P, K, Ca, Mg, Cu, Mn, Zn and Fe were recorded under T4-Sunn hemp-rice+dhaincha (10:1)-greengram system. Also better soil quality maintenance was observed in T4-Sunn hemp-rice+dhaincha (10:1)-greengram cropping system by recording the highest level of soil available nutrients due to the inclusion of green manure and pulse crops in rice-based cropping systems.