Soil aggregation and associated organic carbon fractions as affected by tillage in a rice-wheat rotation in north India

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dc.creatorKumari, Mamta
dc.creatorChakraborty, Debashis
dc.creatorGathala, Mahesh K.
dc.creatorPathak, H.
dc.creatorDwivedi, B.S.
dc.creatorTomar, Rakesh K.
dc.creatorGarg, R.N.
dc.creatorSingh, Ravender
dc.creatorLadha, Jagdish K.
dc.date2011-03
dc.date2024-12-19T12:55:38Z
dc.date2024-12-19T12:55:38Z
dc.date.accessioned2026-06-27T04:13:55Z
dc.descriptionSoil samples were obtained from a long‐term trial conducted on a silty loam at Sardar Vallabhbhai Patel University of Agriculture and Technology, Modipuram (Meerut), in 2007–2008 to study the effects of various combinations of conventional and zero‐tillage (ZT) and raised‐bed systems on soil aggregation and associated organic C fractions in the 0‐ to 5‐cm and 5‐ to 10‐cm depth in a rice–wheat (Orysa sativa L.–Triticum aestivum L.) rotation. Macroaggregates increased under a ZT rice (direct‐seeded or transplanted) and wheat rotation with the 2‐ to 4‐mm fraction greater than that of the 0.25‐ to 2‐mm fraction. Bulk and aggregate associated C increased in ZT systems with greater accumulation in macroaggregates. The fine (0.053–0.25 mm) intra‐aggregate particulate organic C (iPOM‐C), in 0.25‐ to 2‐mm aggregates, was also higher in ZT than conventional tillage. A higher amount of macroaggregates along with greater accumulation of particulate organic C indicates the potential of ZT for improving soil C over the long‐term in rice‐wheat rotation.
dc.identifierhttps://hdl.handle.net/10568/165924
dc.identifier.urihttp://hdl.handle.net/123456789/25926
dc.languageen
dc.publisherWiley
dc.sourceKumari, M., Chakraborty, D., Gathala, M.K., Pathak, H., Dwivedi, B.S., Tomar, R.K., Garg, R.N., Singh, R. and Ladha, J.K. 2011. Soil aggregation and associated organic carbon fractions as affected by tillage in a rice-wheat rotation in north India. Soil Science Soc of Amer J, Volume 75 no. 2 p. 560-567
dc.subjectaggregates
dc.subjectcarbon
dc.subjectcrop rotation
dc.subjectorganic carbon
dc.subjectrice-wheat system
dc.subjectsilty loam
dc.subjectsilty soil
dc.subjectsoil
dc.subjectsoil aggregation
dc.subjectsoil organic carbon
dc.subjectsoil structural units
dc.subjecttillage
dc.subjecttriticum aestivum
dc.subjectwheat
dc.titleSoil aggregation and associated organic carbon fractions as affected by tillage in a rice-wheat rotation in north India
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)