Agricultural practices like tillage, residues burning, incorporation, mulching and removal of crop residues influence soil health and its physical properties. These agricultural practices also contribute almost 20% of the global greenhouse gases (GHGs) emission which further contribute towards global warming (GW). The main purpose of the study was to elucidate the effects of wheat residue, its biochar and their application methods (incorporation vs mulching) on soil organic carbon (SOC) dynamics in maize crop. The study is helpful to the farming community in choosing better form of organic amendment which contributes less in GHGs emissions and climate change. Therefore, a field trial was conducted by using maize (Zea Mays L.) as test crop. Wheat residue (2 t ha-1 ) and its biochar was incorporated in soil and mulched on soil. A control without any organic amendment was also maintained. Each treatment had four replicates distributed according to randomized complete block design (RCBD). Soil carbon dioxide emissions are measured by trapping the CO2 in gas chamber using 1M NaOH and NH3 by trapping in 2% H3BO3 once in a week. At the end of experiment SOC, microbial biomass carbon (MBC), extracellular enzymes of soil and soil aggregate fractionation were determined. The results showed that CO2 emissions were significantly increased by application of wheat residues (2634±179 mg C m-2 day-1 ) and wheat biochar (2325±86 mg C m-2 day-1 ) as incorporation as compared to mulching. Volatilization of NH3 was higher in application of wheat residues as incorporation (690±20 mg NH3 m-2 day-1 ) and wheat biochar (633±57 mg NH3 m-2 day-1 ) at 45th day and then it decreased till 75th day. Soil MBC was significantly increased by application of wheat residue as mulching as compared to other. The β-glucosidase enzyme activity was significantly increased by application of wheat biochar as incorporation (88±17 n M g-1 soil hr-1 ) and significant increase in chitinase activity was observed by application of wheat residue and wheat biochar as mulching as compared to incorporation. Acid phosphatase activity showed highly significant increase in application of wheat biochar as incorporation (413±82 n M g-1 soil hr-1 ). Total grain weight yield was significantly increased in incorporation of wheat residue and wheat biochar as compared to mulching and no amendment. SOC was significantly increased by application of wheat residue as incorporation and wheat biochar as mulching as compared to no amendment. It was concluded that yield and β-glucosidase enzyme activity increased by addition of wheat biochar. Microbial biomass carbon, soil organic carbon and soil nitrate were increased by addition of wheat residue as incorporation. Hence, it is suggested to use wheat residue and its biochar as organic amendments to improve soil organic carbon sequestration and soil physical characteristics.