Nitrogen input effectiveness on carbon sequestration in rainfed cropping system

Risultato della ricerca: Other

Abstract

The combined effect of total N and C/N ratio had a large influence on the decomposition rate and consequently onpotential soil organic carbon sequestration.The aim of the work was to evaluate Carbon sequestration potentiality under three mineral N fertilization levels ininteraction with two cropping systems characterized by addition of N input due to leguminous species in the rotation.The study was carried out in the semiarid Mediterranean environment in a 18years long-term experiment. Iswell know that in the semiarid environment the excess of N fertilization reduces biomass yield and the consequentC input. On the contrary, both N and C input determine high difference in C/N input ratio and faster organic mattermineralization.Results showed no influence of N fertilization on SOC sequestration and a reduction of SOC stock due to croprotation due to lower C input. Crop residue quality of durum wheat-pea crop rotation characterized by a fasterdecomposition rate could explain the lower ability of crop rotation to sequester C in the semiarid environment.
Lingua originaleEnglish
Pagine13462-13462
Numero di pagine1
Stato di pubblicazionePublished - 2016

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carbon sequestration
cropping systems
long term experiments
nitrogen
Mediterranean climate
durum wheat
crop residues
soil organic carbon
carbon nitrogen ratio
peas
minerals
degradation
biomass

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title = "Nitrogen input effectiveness on carbon sequestration in rainfed cropping system",
abstract = "The combined effect of total N and C/N ratio had a large influence on the decomposition rate and consequently onpotential soil organic carbon sequestration.The aim of the work was to evaluate Carbon sequestration potentiality under three mineral N fertilization levels ininteraction with two cropping systems characterized by addition of N input due to leguminous species in the rotation.The study was carried out in the semiarid Mediterranean environment in a 18years long-term experiment. Iswell know that in the semiarid environment the excess of N fertilization reduces biomass yield and the consequentC input. On the contrary, both N and C input determine high difference in C/N input ratio and faster organic mattermineralization.Results showed no influence of N fertilization on SOC sequestration and a reduction of SOC stock due to croprotation due to lower C input. Crop residue quality of durum wheat-pea crop rotation characterized by a fasterdecomposition rate could explain the lower ability of crop rotation to sequester C in the semiarid environment.",
author = "Agata Novara and Luciano Gristina and Ignazio Poma",
year = "2016",
language = "English",
pages = "13462--13462",

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TY - CONF

T1 - Nitrogen input effectiveness on carbon sequestration in rainfed cropping system

AU - Novara, Agata

AU - Gristina, Luciano

AU - Poma, Ignazio

PY - 2016

Y1 - 2016

N2 - The combined effect of total N and C/N ratio had a large influence on the decomposition rate and consequently onpotential soil organic carbon sequestration.The aim of the work was to evaluate Carbon sequestration potentiality under three mineral N fertilization levels ininteraction with two cropping systems characterized by addition of N input due to leguminous species in the rotation.The study was carried out in the semiarid Mediterranean environment in a 18years long-term experiment. Iswell know that in the semiarid environment the excess of N fertilization reduces biomass yield and the consequentC input. On the contrary, both N and C input determine high difference in C/N input ratio and faster organic mattermineralization.Results showed no influence of N fertilization on SOC sequestration and a reduction of SOC stock due to croprotation due to lower C input. Crop residue quality of durum wheat-pea crop rotation characterized by a fasterdecomposition rate could explain the lower ability of crop rotation to sequester C in the semiarid environment.

AB - The combined effect of total N and C/N ratio had a large influence on the decomposition rate and consequently onpotential soil organic carbon sequestration.The aim of the work was to evaluate Carbon sequestration potentiality under three mineral N fertilization levels ininteraction with two cropping systems characterized by addition of N input due to leguminous species in the rotation.The study was carried out in the semiarid Mediterranean environment in a 18years long-term experiment. Iswell know that in the semiarid environment the excess of N fertilization reduces biomass yield and the consequentC input. On the contrary, both N and C input determine high difference in C/N input ratio and faster organic mattermineralization.Results showed no influence of N fertilization on SOC sequestration and a reduction of SOC stock due to croprotation due to lower C input. Crop residue quality of durum wheat-pea crop rotation characterized by a fasterdecomposition rate could explain the lower ability of crop rotation to sequester C in the semiarid environment.

UR - http://hdl.handle.net/10447/211941

M3 - Other

SP - 13462

EP - 13462

ER -