Publication:
Carbon mineralization rates and kinetics of surface-applied and incorporated rice and maize residues in entisol and inceptisol soil types

Simple item page
dc.contributor.authorRakesh, S.
dc.contributor.authorSarkar, Deepranjan
dc.contributor.authorSinha, Abhas Kumar
dc.contributor.authorShikha
dc.contributor.authorMukhopadhyay, Prabir
dc.contributor.authorDanish, Subhan
dc.contributor.authorFahad, Shah
dc.contributor.authorDatta, Rahul
dc.date.accessioned2025-01-30T06:00:48Z
dc.date.available2025-01-30T06:00:48Z
dc.date.issued2021
dc.description.abstractMineralization of carbon (C) is a burning issue that is regulated by soil attributes. It has direct impacts on crop productivity and quantification of organic residues addition in soil. For better understanding and achievement of potential tillage benefits, a comprehensive scientific understanding of C mineralization is very important. Therefore, a laboratory incubation experiment was conducted to investigate the C mineralization rates and kinetics of crop residues (rice and maize) when applied on the surface (as zero-tillage, ZT) and incorporation (as conventional tillage, CT) in four different soil types (S1 and S2 of Entisol; S3 and S4 of Inceptisols) of West Bengal state, India. Results showed that after 7 days of incubation, there was a rapid phase of decrease in CO2-C. It continued up to day 14 followed by a sluggish nature of CO2 emission up to day-42, and after that almost levelling off in all subsequent periods up to the end of 126 days of incubation. It was evident from the kinetic models that C mineralization from the residues followed the exponential model: C = C0 (1 ? e?kt ). Similar rate constant (k) values were recorded in both placement methods, but the rate of maximum potential mineralizable (C0k) residue C was higher under residue incorporation treatments for both rice and maize residue. However, the rice and maize residues showed almost similar amounts of C mineralized over time when applied on the surface. The future prediction analysis using the equation C = C0 X e?kt suggested that the residues incorporated into the soil release a maximum C irrespective of residue type. We conclude that the residues when incorporated into the soil significantly increase the C footprints through maximum C mineralization; leaving the crop residues on the soil surface reduces the C footprints which helps in achieving sustainability from an environmental perspective. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.
dc.identifier.doihttps://doi.org/10.3390/su13137212
dc.identifier.issn20711050
dc.identifier.urihttps://dl.bhu.ac.in/ir/handle/123456789/24879
dc.publisherMDPI
dc.subjectCO<sub>2</sub> fluxes
dc.subjectCumulative C mineralized
dc.subjectIncorporation
dc.subjectMineralization kinetics
dc.subjectRice and maize residues
dc.subjectSurface application
dc.titleCarbon mineralization rates and kinetics of surface-applied and incorporated rice and maize residues in entisol and inceptisol soil types
dc.typeArticle
dspace.entity.typePublication
journal.titleSustainability (Switzerland)
journalvolume.identifier.volume13

Files

Collections

2021