title: Sugarcane trash levels in soil affects the fungi but not bacteria in a short-term field experiment.
abstract: The sugarcane in Brazil is passing through a management transition that is leading to the abolition of pre-harvest burning. Without burning, large amounts of sugarcane trash is generated, and there is a discussion regarding the utilization of this biomass in the industry versus keeping it in the field to improve soil quality. To study the effects of the trash removal on soil quality, we established an experimental sugarcane plantation with different levels of trash over the soil (0%, 50% and 100% of the original trash deposition) and analyzed the structure of the bacterial and fungal community as the bioindicators of impacts. The soil DNA was extracted, and the microbial community was screened by denaturing gradient gel electrophoresis in two different seasons. Our results suggest that there are no effects from the different levels of trash on the soil chemistry and soil bacterial community. However, the fungal community was significantly impacted, and after twelve months, the community presented different structures among the treatments.
authors.affiliation: Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: C T C C
authors.initials: CT
authors.lastname: Rachid
authors.affiliation: Embrapa Solos, Rio de Janeiro, Brazil; Federal Rural University of Rio de Janeiro, Seropédica, Brazil.
authors.forename: C A
authors.initials: CA
authors.lastname: Pires
authors.affiliation: Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: D C A
authors.initials: DC
authors.lastname: Leite
authors.affiliation: Embrapa Solos, Rio de Janeiro, Brazil.
authors.forename: H L C
authors.initials: HL
authors.lastname: Coutinho
authors.affiliation: Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: R S
authors.initials: RS
authors.lastname: Peixoto
authors.affiliation: Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: A S
authors.initials: AS
authors.lastname: Rosado
authors.affiliation: Embrapa Agropecuária Oeste, Dourados, Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Salton
authors.affiliation: Embrapa Florestal, Colombo, Brazil.
authors.forename: J A
authors.initials: JA
authors.lastname: Zanatta
authors.affiliation: Embrapa Florestal, Colombo, Brazil.
authors.forename: F M
authors.initials: FM
authors.lastname: Mercante
authors.affiliation: Embrapa Solos, Rio de Janeiro, Brazil.
authors.forename: G A R
authors.initials: GA
authors.lastname: Angelini
authors.affiliation: Embrapa Solos, Rio de Janeiro, Brazil. Electronic address: fabiano.balieiro@embapa.br.
authors.forename: Fabiano de Carvalho
authors.initials: Fde C
authors.lastname: Balieiro
mesh_terms: D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D044822:Biodiversity; D001938:Brazil; D005658:Fungi / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D031786:Saccharum / Q000254:growth & development / Q000382:microbiology*; D012621:Seasons; D012987:Soil / Q000737:chemistry; D012988:Soil Microbiology
chemical_list: D012987:Soil
keywords: Fungal community structure; Green cane; Soil microbiology; Soil quality; Sugarcane trash