Author
Listed:
- Jéssica Pereira de Souza
- Elisandra Solange Oliveira Bortolon
- Leandro Bortolon
- Francelino Peteno de Camargo
- Willian Sousa Silva Conceição
- Alan de Ornelas Lima
- Fabiane Machado Vezzani
Abstract
The objectives of this work were to evaluate the CO2 emission potential of an Oxisol under integrated crop-livestock and no-tillage systems in the Brasilian Savanna; and to analyze the impact of soil temperature and soil moisture as factors that regulate the seasonality and the emission of C-CO2 in these systems. Field-scale study was carried out at Fazenda Brejinho, in Pedro Afonso-TO, under Oxisol. The production systems studied were integrated crop-livestock and no-tillage under cropped with soybean and corn. The amount of carbon (C) released from the soil in the form of CO2 (C-CO2) was evaluated using cylindrical chambers installed in the field with a vial containing sodium hydroxide to collect CO2 released from the soil (soil emission) in an interval of 15 hours. Five evaluations were conducted over crops growing season, started in 01/26 through 06/16/2015. Data were tested to analysis of variance and the means were compared with Duncan test at 5%. The emission of C-CO2 differed between treatments in all evaluation periods. On average, the temperature ranged from 26.5 to 27.7 °C, the soil moisture ranged from 12.2 to 15.7% and the C-CO2 emission ranged from 87.4 to 119.9 mg m-2 h-1. Temperature, soil moisture and the production systems contributed to the emission and seasonality of carbon dioxide emissions. The integrated crop-livestock cropped with soybean/corn rotation was the system that had the lowest carbon dioxide emission.
Suggested Citation
Jéssica Pereira de Souza & Elisandra Solange Oliveira Bortolon & Leandro Bortolon & Francelino Peteno de Camargo & Willian Sousa Silva Conceição & Alan de Ornelas Lima & Fabiane Machado Vezzani, 2024.
"Carbon Dioxide Emissions in Agricultural Systems in the Brazilian Savanna,"
Journal of Agricultural Science, Canadian Center of Science and Education, vol. 11(17), pages 242-242, April.
Handle:
RePEc:ibn:jasjnl:v:11:y:2024:i:17:p:242
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JEL classification:
- R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
- Z0 - Other Special Topics - - General
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