Journal ArticleDOI
Tillage and crop residue effects on soil carbon and carbon dioxide emission in corn-soybean rotations.
Mahdi Al-Kaisi,Xinhua Yin +1 more
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Adopting less intensive tillage systems such as no-tillage, strip-t Tillage, deep rip, and chisel plow and better crop residue cover are effective in reducing CO2 emission and thus improving soil C sequestration in a corn-soybean rotation.Abstract:
Soil C change and CO2 emission due to different tillage systems need to be evaluated to encourage the adoption of conservation practices to sustain soil productivity and protect the environment. We hypothesize that soil C storage and CO2 emission respond to conservation tillage differently from conventional tillage because of their differential effects on soil properties. This study was conducted from 1998 through 2001 to evaluate tillage effects on soil C storage and CO2 emission in Clarion-Nicollet-Webster soil association in a corn [Zea mays L.]-soybean [Glycine max (L.) Merr.] rotation in Iowa. Treatments included no-tillage with and without residue, strip-tillage, deep rip, chisel plow, and moldboard plow. No-tillage with residue and strip-tillage significantly increased total soil organic C (TC) and mineral fraction C (MFC) at the 0- to 5- and 5- to 10-cm soil depths compared with chisel plow after 3 yr of tillage practices. Soil CO2 emission was lower for less intensive tillage treatments compared with moldboard plow, with the greatest differences occurring immediately after tillage operations. Cumulative soil CO2 emission was 19 to 41% lower for less intensive tillage treatments than moldboard plow, and it was 24% less for no-tillage with residue than without residue during the 480-h measurement period. Estimated soil mineralizable C pool was reduced by 22 to 66% with less intensive tillage treatments compared with moldboard plow. Adopting less intensive tillage systems such as no-tillage, strip-tillage, deep rip, and chisel plow and better crop residue cover are effective in reducing CO2 emission and thus improving soil C sequestration in a corn-soybean rotation.read more
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Journal ArticleDOI
Long-term tillage effects on soil carbon storage and carbon dioxide emissions in continuous corn cropping system from an alfisol in Ohio.
David A.N. Ussiri,Rattan Lal +1 more
TL;DR: In this paper, the effects of long-term tillage practices on soil organic carbon (SOC) storage and CO2 emissions, was conducted on longterm Tillage and continuous corn (Zea mays L.).
Journal ArticleDOI
Soil carbon and nitrogen accumulation with long-term no-till versus moldboard plowing overestimated with tilled-zone sampling depths
TL;DR: In this article, the authors assess impacts of long-term (28 years) tillage and crop rotation on organic carbon (OC) and total nitrogen (N) content and depth distribution together with bulk density and pH on a dark-colored Chalmers silty clay loam in Indiana.
Journal ArticleDOI
Emissions of Nitrous Oxide and Carbon Dioxide
TL;DR: In this paper, the feasibility of using conservation tillage and N fertilizer placement depth to reduce N 2 O and CO 2 emissions associated with corn production on clay loam soils in Eastern Canada was evaluated.
Journal ArticleDOI
Soil carbon dioxide emission and carbon content as affected by irrigation, tillage, cropping system, and nitrogen fertilization.
TL;DR: Regardless of irrigation, CO(2) flux can be reduced from croplands to a level similar to that in CRP planting using no-tilled crops with or without N fertilization compared with other management practices.
Journal ArticleDOI
Determinants of annual fluxes of CO2 and N2O in long-term no-tillage and conventional tillage systems in northern France
TL;DR: The greenhouse gases CO2 and N2O emissions were quantified in a long-term experiment in northern France, in which no-till (NT) and conventional tillage (CT) had been differentiated during 32 years in plots under a maize-wheat rotation as mentioned in this paper.
References
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BookDOI
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M.R. Carter,Edward G. Gregorich +1 more
TL;DR: In this paper, the authors present a set of methods for soil sampling and analysis, such as: N.H.Hendershot, H.M.Hettiarachchi, C.C.De Freitas Arbuscular Mycorrhiza, Y.K.Soon and W.J.
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Journal ArticleDOI
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C. A. Cambardella,E.T. Elliott +1 more
TL;DR: The POM fraction was isolated by dispersing the soil in 5 g L-1 hexametaphosphate and passing the dispersed soil samples through a 53-micrometer sieve as mentioned in this paper.
Journal ArticleDOI
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