Agricultural Sciences

Volume 8, Issue 9 (September 2017)

ISSN Print: 2156-8553   ISSN Online: 2156-8561

Google-based Impact Factor: 1.22  Citations  

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

HTML  XML Download Download as PDF (Size: 984KB)  PP. 887-903  
DOI: 10.4236/as.2017.89065    1,446 Downloads   3,028 Views  Citations

ABSTRACT

Increases in greenhouse gases (GHG) emissions, upon changes in land use and agricultural management, lead to a search for techniques that enhance carbon residence time in soil. Pyrolysis increases the recalcitrance of organic materials and enhances their activities as physical, chemical and biological soil conditioners. Emissions of CO2, CH4 and N2O quantified from a sandy soil that was treated with three rates (12.5, 25 e 50 Mg·ha-1) of either non-pyrolysed poultry manure and sugarcane straw or biochars, pyrolysed at two contrasting temperatures (350°C and 650°C). Subsequently, the flux of the three gases was converted and compared in a standard unit (CO2eq). The added biochars, significantly reduced GHG emissions, especially CO2, relative to the non-pyrolysed materials. The greatest differences between applied rates of poultry manure, relative sugarcane straw, both to biochar and raw material, and the positive response to the increase of pyrolysis temperture, confirm the importance of raw material choice for biochar production, with recalcitrance being an important initial characteristic. Greater emissions occurred with intermediate rate of biochars (25 Mg·ha-1) amendment to the soil. These intermediate rates had higher microbial biomass, provided by an intermediate C/N ratio derived from the original soil and the biochar, promoting combined levels of labile C and oxygen availability, leading to an optimal environment for microbiota.

Share and Cite:

Vieira Novais, S. , Oliveira Zenero, M. , Frade Junior, E. , Paiva de Lima, R. and Pelegrino Cerri, C. (2017) Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars. Agricultural Sciences, 8, 887-903. doi: 10.4236/as.2017.89065.

Cited by

[1] Exploring the potential of sugarcane straw biochar: Insights into N2O emissions and microbial functional genes
Ferreira… - Biomass and …, 2024
[2] Life cycle assessment of bio-based fertilizers production systems: where are we and where should we be heading?
… International Journal of …, 2023
[3] Short‐term biochar effects on greenhouse gas emissions and phosphorus availability for maize
2021
[4] Eco-Friendly Yield and Greenhouse Gas Emissions as Affected by Fertilization Type in a Tropical Smallholder Rice System, Ghana
2020
[5] Biochar and Organic Amendments for Sustainable Soil Carbon and Soil Health
2020
[6] Balancing Waste and Nutrient Flows Between Urban Agglomerations and Rural Ecosystems: Biochar for Improving Crop Growth and Urban Air Quality in The …
2020
[7] Balancing waste and nutrient flows between urban agglomerations and rural ecosystems: biochar for improving crop growth and urban air quality in the Mediterranean …
2020
[8] Poultry manure and sugarcane straw biochars modified with MgCl2 for phosphorus adsorption
Journal of Environmental Management, 2018
[9] A Theoretical Model for GHG Emissions Due to Biochar Application in Tropical Agricultural Soils
Agronomy Journal, 2018
[10] Phosphorus removal from eutrophic water using modified biochar
Science of The Total Environment, 2018

Copyright © 2025 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.