Soil Efflux of Carbon Dioxide in Brazilian Cerrado Wheat ( Triticum aestivum L.) under Variable Soil Preparation and Irrigation

Wininton M. da Silva, Aloísio Bianchini, Ricardo S. S. Amorim, Eduardo G. Couto, Oscarlina L. dos S. Weber, Aaron Kinyu Hoshide, Pedro S. X. Pereira, Cassiano Cremon and Daniel C. de Abreu
Additional contact information
Wininton M. da Silva: Empresa Mato-Grossense de Pesquisa, Assistência e Extensão Rural (EMPAER-MT), Centro Político Administrativo, Cuiabá 78049-903, MT, Brazil
Aloísio Bianchini: Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal de Mato Grosso, Cuiabá 78060-900, MT, Brazil
Ricardo S. S. Amorim: Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
Eduardo G. Couto: Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal de Mato Grosso, Cuiabá 78060-900, MT, Brazil
Oscarlina L. dos S. Weber: Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal de Mato Grosso, Cuiabá 78060-900, MT, Brazil
Aaron Kinyu Hoshide: College of Natural Sciences, Forestry and Agriculture, The University of Maine, Orono, ME 04469, USA
Pedro S. X. Pereira: Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal de Mato Grosso, Cuiabá 78060-900, MT, Brazil
Cassiano Cremon: Department of Agronomy, Universidade do Estado de Mato Grosso, Rua São João, s/n., Caceres 78216-596, MT, Brazil
Daniel C. de Abreu: AgriSciences, Universidade Federal de Mato Grosso, Caixa Postal 729, Sinop 78550-970, MT, Brazil

Agriculture, 2022, vol. 12, issue 2, 1-14

Abstract: Soil turning during pre-seeding preparation is meant to loosen and promote physical characteristics responsible for the development of crop roots in soil. In this study, we demonstrate effects of three methods of pre-seeding preparation at two depths of irrigation on carbon dioxide (CO 2 ) efflux as well as the temporal variability in the distribution of soil carbon. This experiment was conducted at the rural cooperative extension research station in Tangará da Serra, Mato Grosso, Brazil, for two wheat production years in 2011 and 2012. The experimental design was randomized in strips, with four repetitions. Wheat was irrigated during the June to early October dry season. The treatments include two methods of soil preparation: traditional preparation with one plowing and two disc harrowings and minimal preparation with one seed bed conditioner pass. A third treatment of direct seeding was also evaluated. Soil CO 2 efflux, soil temperature, air-filled soil porosity, and labile carbon were measured. We found soil preparation affects CO 2 efflux in irrigated cultivation systems within Brazil’s Cerrado savannah, with conventional tillage having greater CO 2 emissions than either reduced tillage or direct seeding. Soil CO 2 emissions were lower at 508 mm versus 698 mm irrigation depth, but wheat yields were significantly lower.

Keywords: cultivation; carbon emissions; dry season; labile carbon; savannah; South America; watering; yield (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2077-0472/12/2/163/pdf (application/pdf)
https://www.mdpi.com/2077-0472/12/2/163/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:12:y:2022:i:2:p:163-:d:732317

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().