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Effects of cover crops, compost, and manure amendments on soil microbial community structure in tomato production systems

Carrera, L.M. ; Buyer, J.S. ; Vinyard, B. ; Abdul-Baki, A.A. ; Sikora, L.J. ; Teasdale, J.R.

Applied soil ecology : a section of Agriculture, ecosystems & environment, 2007-11, Vol.37 (3), p.247-255 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Effects of cover crops, compost, and manure amendments on soil microbial community structure in tomato production systems
  • Autor: Carrera, L.M. ; Buyer, J.S. ; Vinyard, B. ; Abdul-Baki, A.A. ; Sikora, L.J. ; Teasdale, J.R.
  • Assuntos: ammonium nitrate ; animal manures ; bioassays ; Biolog ; Black polyethylene ; community structure ; Cover crop ; cover crops ; crop yield ; FAME ; fertilizer application ; Hairy vetch ; Microbial community ; Mulch ; nitrate fertilizers ; plastic film mulches ; soil amendments ; soil microorganisms ; Solanum lycopersicum var. lycopersicum ; tomatoes ; Vicia villosa
  • É parte de: Applied soil ecology : a section of Agriculture, ecosystems & environment, 2007-11, Vol.37 (3), p.247-255
  • Notas: http://hdl.handle.net/10113/9847
    http://dx.doi.org/10.1016/j.apsoil.2007.08.003
    ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
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  • Descrição: Soil microbial community structure and crop yield was investigated in field tomato production systems that compared black polyethylene mulch to hairy vetch mulch and inorganic N to organic N. The following hypotheses were tested: (1) hairy vetch cover cropping increases crop yield and significantly affects soil microbial community structure when compared to the standard plastic mulch and synthetic fertilizer-based system; (2) within plastic mulch systems, organic amendments will increase crop yield and significantly affect soil microbial community structure when compared to synthetic fertilizer; (3) crop yields and microbial community structure will be similar in the hairy vetch cover cropping and the organic amended plasticulture systems. Treatments consisted of ammonium nitrate (control), hairy vetch cover crop, hairy vetch cover crop and poultry manure compost (10 Mg/ha), three levels of poultry manure compost (5, 10, and 20 Mg/ha), and two levels of poultry manure (2.5 and 5 Mg/ha). Black polyethylene mulch was used in all treatments without hairy vetch. Fatty acid analysis was used to characterize the total soil microbial community structure, while two substrate utilization assays were used to investigate the community structure of culturable bacteria and fungi. Crop yield was not significantly increased by hairy vetch cover cropping when compared to black polyethylene mulch, although microbial community structure was significantly affected by cover cropping. Under black polyethylene mulch, crop yields were significantly increased by the highest levels of compost and manure when compared to inorganic fertilizer, but there was no detectable effect on soil microbial community structure. When cover cropping was compared to organic amended plasticulture systems, crop yields were similar one year but dissimilar the next. However, hairy vetch cover cropping and organic amendments under black plastic mulch produced significantly different soil microbial community structure.
  • Editor: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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