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Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil. / Morais, Maristela C.; Siqueira-Neto, Marcos; Guerra, Henrique P. et al.
In: Sustainability, Vol. 12, No. 22, 9363, 11.11.2020.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Morais, MC, Siqueira-Neto, M, Guerra, HP, Satiro, LS, Soltangheisi, A, Cerri, CEP, Feigl, BJ & Cherubin, MR 2020, 'Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil', Sustainability, vol. 12, no. 22, 9363. https://doi.org/10.3390/su12229363

APA

Morais, M. C., Siqueira-Neto, M., Guerra, H. P., Satiro, L. S., Soltangheisi, A., Cerri, C. E. P., Feigl, B. J., & Cherubin, M. R. (2020). Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil. Sustainability, 12(22), Article 9363. https://doi.org/10.3390/su12229363

Vancouver

Morais MC, Siqueira-Neto M, Guerra HP, Satiro LS, Soltangheisi A, Cerri CEP et al. Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil. Sustainability. 2020 Nov 11;12(22):9363. doi: 10.3390/su12229363

Author

Morais, Maristela C. ; Siqueira-Neto, Marcos ; Guerra, Henrique P. et al. / Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil. In: Sustainability. 2020 ; Vol. 12, No. 22.

Bibtex

@article{ea1539cd58ab4ffb9559aed266d05bf8,
title = "Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil",
abstract = "Environmental benefits from bioenergy production derived from sugarcane crop residues (straw) can be lost by soil organic matter depletion resulting from excessive straw removal rates from fields. Soil organic carbon stock is the core for sustaining soil health, supporting nutrient cycling, and sequestering carbon dioxide. To find out that how much sugarcane straw can be removed from the field to produce bioenergy without changes in soil C concentrations, we investigated effects of straw removal rates (total, moderate, and no removal of sugarcane straw) on soil carbon and nitrogen fractions in an Oxisol and an Ultisol in southeastern Brazil for two years. Soil C and N fractions were affected by increased rates of straw removal at the second year. In the Oxisol, total straw removal decreased labile and microbial-C by ~30% and soil C stock by 20% compared to no straw removal. No removal decreased microbial-N and total N stock by ~15% and ~20%, respectively. In the Ultisol, no straw removal resulted in increases in C stock by >10% and labile and microbial-C by ~20% related to total straw removal. Total straw removal showed more microbial-N (~10%) and total-N stock (~25%) compared to no straw removal. The moderate straw removal intensity (i.e., 8 to 10 Mg ha−1 of straw) may control the straw-C release to soil by straw decomposition. This study suggests that excessive straw removal rates should be avoided, preventing SOM depletion and consequently, soil health degradation. Moderate straw removal seems to be a promising strategy, but long-term soil C monitoring is fundamental to design more sustainable straw management and bioenergy production systems.",
keywords = "crop residue management, soil organic matter quality index, bioenergy",
author = "Morais, {Maristela C.} and Marcos Siqueira-Neto and Guerra, {Henrique P.} and Satiro, {Lucas S.} and Amin Soltangheisi and Cerri, {Carlos E. P.} and Feigl, {Brigitte J.} and Cherubin, {Maur{\'i}cio R.}",
year = "2020",
month = nov,
day = "11",
doi = "10.3390/su12229363",
language = "English",
volume = "12",
journal = "Sustainability",
issn = "2071-1050",
publisher = "MDPI AG",
number = "22",

}

RIS

TY - JOUR

T1 - Trade-Offs between Sugarcane Straw Removal and Soil Organic Matter in Brazil

AU - Morais, Maristela C.

AU - Siqueira-Neto, Marcos

AU - Guerra, Henrique P.

AU - Satiro, Lucas S.

AU - Soltangheisi, Amin

AU - Cerri, Carlos E. P.

AU - Feigl, Brigitte J.

AU - Cherubin, Maurício R.

PY - 2020/11/11

Y1 - 2020/11/11

N2 - Environmental benefits from bioenergy production derived from sugarcane crop residues (straw) can be lost by soil organic matter depletion resulting from excessive straw removal rates from fields. Soil organic carbon stock is the core for sustaining soil health, supporting nutrient cycling, and sequestering carbon dioxide. To find out that how much sugarcane straw can be removed from the field to produce bioenergy without changes in soil C concentrations, we investigated effects of straw removal rates (total, moderate, and no removal of sugarcane straw) on soil carbon and nitrogen fractions in an Oxisol and an Ultisol in southeastern Brazil for two years. Soil C and N fractions were affected by increased rates of straw removal at the second year. In the Oxisol, total straw removal decreased labile and microbial-C by ~30% and soil C stock by 20% compared to no straw removal. No removal decreased microbial-N and total N stock by ~15% and ~20%, respectively. In the Ultisol, no straw removal resulted in increases in C stock by >10% and labile and microbial-C by ~20% related to total straw removal. Total straw removal showed more microbial-N (~10%) and total-N stock (~25%) compared to no straw removal. The moderate straw removal intensity (i.e., 8 to 10 Mg ha−1 of straw) may control the straw-C release to soil by straw decomposition. This study suggests that excessive straw removal rates should be avoided, preventing SOM depletion and consequently, soil health degradation. Moderate straw removal seems to be a promising strategy, but long-term soil C monitoring is fundamental to design more sustainable straw management and bioenergy production systems.

AB - Environmental benefits from bioenergy production derived from sugarcane crop residues (straw) can be lost by soil organic matter depletion resulting from excessive straw removal rates from fields. Soil organic carbon stock is the core for sustaining soil health, supporting nutrient cycling, and sequestering carbon dioxide. To find out that how much sugarcane straw can be removed from the field to produce bioenergy without changes in soil C concentrations, we investigated effects of straw removal rates (total, moderate, and no removal of sugarcane straw) on soil carbon and nitrogen fractions in an Oxisol and an Ultisol in southeastern Brazil for two years. Soil C and N fractions were affected by increased rates of straw removal at the second year. In the Oxisol, total straw removal decreased labile and microbial-C by ~30% and soil C stock by 20% compared to no straw removal. No removal decreased microbial-N and total N stock by ~15% and ~20%, respectively. In the Ultisol, no straw removal resulted in increases in C stock by >10% and labile and microbial-C by ~20% related to total straw removal. Total straw removal showed more microbial-N (~10%) and total-N stock (~25%) compared to no straw removal. The moderate straw removal intensity (i.e., 8 to 10 Mg ha−1 of straw) may control the straw-C release to soil by straw decomposition. This study suggests that excessive straw removal rates should be avoided, preventing SOM depletion and consequently, soil health degradation. Moderate straw removal seems to be a promising strategy, but long-term soil C monitoring is fundamental to design more sustainable straw management and bioenergy production systems.

KW - crop residue management

KW - soil organic matter quality index

KW - bioenergy

U2 - 10.3390/su12229363

DO - 10.3390/su12229363

M3 - Journal article

VL - 12

JO - Sustainability

JF - Sustainability

SN - 2071-1050

IS - 22

M1 - 9363

ER -