Straw Uses trade-off only after Soil Organic Carbon Steady-State

Mauro Sarno, Luciano Gristina, Agata Novara, Eric C. Brevik, Paulo Pereira, Artemi Cerdà

Risultato della ricerca: Article

3 Citazioni (Scopus)

Abstract

Soil organic matter (SOM) is the key for a healthy soil and a relevant property to achieve thesustainability on soil management. However, soils are still net exporters of organic matter.One example is the use of wheat straw residue for industrial and energy applications, whichhas gained attention in the last years. The off-farm use of this abundant and low cost resourceshould follow sustainability criteria to avoid soil degradation and SOM losses. Straw residueincorporation is recognized as a recommended management practice to control erosion andmitigate CO2 emissions by increasing SOM. The goal of this work was: i) to evaluate thesteady-state carbon (C) level in relation to C input and estimate the minimum residue inputneeded to maintain this SOC level in a durum wheat-based cropping system in long-termexperiment; and ii) estimate the potential availability of durum wheat straws for alternativeuse. Results showed that a C steady-state can be achieved after 3.4 years with an annualorganic C input of 4.5 Mgha-1. Only after reaching a steady-state, straws can be used fortrade-off, leaving 1.03 Mgha-1y-1 of C input remain in the soil.
Lingua originaleEnglish
pagine (da-a)216-220
Numero di pagine5
RivistaITALIAN JOURNAL OF AGRONOMY
Volume13
Stato di pubblicazionePublished - 2018

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soil organic carbon
straw
soil organic matter
Soil
Carbon
wheat straw
durum wheat
Triticum
soil
erosion control
soil degradation
soil management
cropping systems
farms
carbon
Practice Management
energy
Costs and Cost Analysis

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Agricultural and Biological Sciences(all)

Cita questo

Straw Uses trade-off only after Soil Organic Carbon Steady-State. / Sarno, Mauro; Gristina, Luciano; Novara, Agata; Brevik, Eric C.; Pereira, Paulo; Cerdà, Artemi.

In: ITALIAN JOURNAL OF AGRONOMY, Vol. 13, 2018, pag. 216-220.

Risultato della ricerca: Article

Sarno, Mauro ; Gristina, Luciano ; Novara, Agata ; Brevik, Eric C. ; Pereira, Paulo ; Cerdà, Artemi. / Straw Uses trade-off only after Soil Organic Carbon Steady-State. In: ITALIAN JOURNAL OF AGRONOMY. 2018 ; Vol. 13. pagg. 216-220.
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AU - Sarno, Mauro

AU - Gristina, Luciano

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AU - Brevik, Eric C.

AU - Pereira, Paulo

AU - Cerdà, Artemi

PY - 2018

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N2 - Soil organic matter (SOM) is the key for a healthy soil and a relevant property to achieve thesustainability on soil management. However, soils are still net exporters of organic matter.One example is the use of wheat straw residue for industrial and energy applications, whichhas gained attention in the last years. The off-farm use of this abundant and low cost resourceshould follow sustainability criteria to avoid soil degradation and SOM losses. Straw residueincorporation is recognized as a recommended management practice to control erosion andmitigate CO2 emissions by increasing SOM. The goal of this work was: i) to evaluate thesteady-state carbon (C) level in relation to C input and estimate the minimum residue inputneeded to maintain this SOC level in a durum wheat-based cropping system in long-termexperiment; and ii) estimate the potential availability of durum wheat straws for alternativeuse. Results showed that a C steady-state can be achieved after 3.4 years with an annualorganic C input of 4.5 Mgha-1. Only after reaching a steady-state, straws can be used fortrade-off, leaving 1.03 Mgha-1y-1 of C input remain in the soil.

AB - Soil organic matter (SOM) is the key for a healthy soil and a relevant property to achieve thesustainability on soil management. However, soils are still net exporters of organic matter.One example is the use of wheat straw residue for industrial and energy applications, whichhas gained attention in the last years. The off-farm use of this abundant and low cost resourceshould follow sustainability criteria to avoid soil degradation and SOM losses. Straw residueincorporation is recognized as a recommended management practice to control erosion andmitigate CO2 emissions by increasing SOM. The goal of this work was: i) to evaluate thesteady-state carbon (C) level in relation to C input and estimate the minimum residue inputneeded to maintain this SOC level in a durum wheat-based cropping system in long-termexperiment; and ii) estimate the potential availability of durum wheat straws for alternativeuse. Results showed that a C steady-state can be achieved after 3.4 years with an annualorganic C input of 4.5 Mgha-1. Only after reaching a steady-state, straws can be used fortrade-off, leaving 1.03 Mgha-1y-1 of C input remain in the soil.

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SN - 2039-6805

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