Microbiological Attributes and Performance of the Bacterial Community in Brazilian Cerrado Soil with Different Cover Crops

Sebastião Ferreira de Lima, Vinicius Andrade Secco, Cátia Aparecida Simon, Antônio Marcos Miranda Silva, Eduardo Pradi Vendruscolo, Maria Gabriela de Oliveira Andrade, Lucymara Merquides Contardi, Ana Paula Leite de Lima, Meire Aparecida Silvestrini Cordeiro and Mariele Silva Abreu
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Sebastião Ferreira de Lima: Campus Chapadão do Sul, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil
Vinicius Andrade Secco: Campus Chapadão do Sul, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil
Cátia Aparecida Simon: Soil Science Department, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba 13418-000, Brazil
Antônio Marcos Miranda Silva: Soil Science Department, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba 13418-000, Brazil
Eduardo Pradi Vendruscolo: Campus Cassilândia, State University of Mato Grosso do Sul, Cassilândia 79540-000, Brazil
Maria Gabriela de Oliveira Andrade: Plant Breeding and Production Department, State University of São Paulo, Botucatu 18610-034, Brazil
Lucymara Merquides Contardi: Phytotechnics, Food Technology and Socio-Economics Department, State University of São Paulo, Ilha Solteira 15385-000, Brazil
Ana Paula Leite de Lima: Campus Chapadão do Sul, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil
Meire Aparecida Silvestrini Cordeiro: Campus Chapadão do Sul, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil
Mariele Silva Abreu: Campus Chapadão do Sul, Federal University of Mato Grosso do Sul, Chapadão do Sul 79560-000, Brazil

Sustainability, 2021, vol. 13, issue 15, 1-14

Abstract: Soil microbiological indicators are essential tools to understand how the management with cover crops interferes in the activity and the soil microbial community. Thus, the objective of the study was to evaluate microbiological attributes and performance of the bacterial community in the soil of the Brazilian Cerrado with different cover crops. The experiment was performed in a randomized block design, evaluating seven cover crops, Sorghum bicolor , Crotalaria ochroleuca , Pennisetum americanum , Panicum miliaceum , Raphanus sativus , Urochloa brizantha, Urochloa ruziziensis , and a fallow area. Cover aerial biomass dry weight (CB), microbial biomass carbon (MBC), basal soil respiration (BR), metabolic quotient (qCO 2 ), and abundance and structure of bacterial community based on the rrs 16S rRNA gene were evaluated. In the soil cultivated with S. bicolor there was the highest CB and MBC at the same time as there was less microbial activity (lower BR and qCO 2 ). The structure of the bacterial community was more differentiated in soils cultivated with S. bicolor , P. americanum, and C. ochroleuca . The MBC was more associated with cover crops of the Urochloa genus, while BR was positively correlated with S. bicolor . Bacterial abundance was positively correlated with P. miliaceum.

Keywords: no-till; microbial activity; organic carbon; soil quality (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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