_____________________________________________________________________________________________________ *Corresponding author: E-mail: shraddhatikariha3103@gmail.com; International Journal of Plant & Soil Science 34(23): 1286-1290, 2022; Article no.IJPSS.90276 ISSN: 2320-7035 Assessment of Soil Enzymatic Activities and Nutrient Status in an Inceptisol under Varying Levels of Fly Ash with Fym Shraddha Tikariha a* , Vinay Bachkaiya a , Vedhika Sahu a , Pragya Pandey a and Kirtiwardhan Sukhdeve a a Department of Soil Science, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chattisgarh-492012, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJPSS/2022/v34i232543 Open Peer Review History: This journal follows the Advanced Open Peer Review policy. Identity of the Reviewers, Editor(s) and additional Reviewers, peer review comments, different versions of the manuscript, comments of the editors, etc are available here: https://www.sdiarticle5.com/review-history/90276 Received 23 June 2022 Accepted 17 August 2022 Published 21 November 2022 ABSTRACT Background: A study was carried out during kharif season of 2021. Field experiment was laid out in a randomized block design having 8 treatments which were randomized thrice viz. T1-Control; T2-100% RDF (100:60:40 N: P2O5:K2O kg ha -1 ); T3 -75% RDF + 25t/ha Fly ash; T4-75% RDF + 25t/ha Fly ash + 5t/ha FYM; T5-75% RDF + 30t/ha Fly ash; T6-75% RDF + 30t/ha Fly ash + 5t/ha FYM; T7- 75% RDF + 45t/ha Fly ash; and T8 -75% RDF + 45t/ha Fly ash + 5t/ha FYM. The results showed that application of fly ash with fertilizer and FYM could be viable source for increasing the production of crops under degraded land conditions. The experiment resulted a significant effect on the soil enzymatic activity viz. dehydrogenase (47.21 μg TPF 24 hr-1g-1 soil), urease (38.65 μg NH4 + - N g -1 soil h -1 ), acid phosphatase (27.41μg p-nitrophenol g-1 hr-1) and alkali phosphatase activity (69.54μg p-nitrophenol g -1 hr -1 ) which were found highest with the 75% RDF + 45t/ha Fly ash + 5t/ha FYM. Overall result concluded that use of 75% RDF + 45t/ha Fly ash + 5t/ha FYM can save 25% of fertilizer (NPK) and increase the soil biological activity. N, P, K were significantly enhanced with the incorporation of fly ash with FYM whereas there was no effect on content of micronutrients (Fe, Mn, Zn,Cu) in soil. Original Research Article