Influence of aerobic treated manure application on the chemical and microbiological properties of soil

Adriana Montañez; Natalia Rigamonti; Silvana Vico; Carla Silva; Lucía Nuñez; Stella Zerbino

Ayuda

Influence of aerobic treated manure application on the chemical and microbiological properties of soil

Montañez, Adriana ^[1] ; Rigamonti, Natalia ^[1] ; Vico, Silvana ^[1] ; Silva, Carla ^[1] ; Nuñez, Lucía ^[1] ; Zerbino, Stella ^[2]
1. [1] Universidad de la República
  
  Universidad de la República
  
  Uruguay
2. [2] INIA. La Estanzuela, 70000 Colonia
Localización: Spanish journal of agricultural research, ISSN-e 2171-9292, ISSN 1695-971X, Vol. 17, Nº. 4, 2019
Idioma: inglés
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Resumen
- Aim of study: This study evaluated the effect of the application of liquid aerobic treated manure (continuous liquid composting, CLC) on physical, chemical and biological soil properties, with the objective of monitoring changes induced by soil management with CLC as a biofertilizer.Area of study: Colonia, Uruguay (lat. 34,338164 S, long. 57,222630 W).Material and methods: Soil’s chemical properties, including nitrogen mineralization potential (NMP) and 15 microbiological properties (microbial biomass carbon, MBC; mesophylic aerobic bacteria; actinobacteria; filamentus fungi; fluorescein diacetate hydrolysis; dehydrogenase; with NMP; acid and alkaline phosphatase; cellulolose degraders; P-solubilizing bacteria; nitrifying; denitrifying and free-living N-fixing microorganisms; glomalin; and soil-pathogenicity index, SPI) were evaluated in two sites with similar cropping history, with one and three years of respective CLC application.Main results: CLC application had significant effects on soil microbial biomass (p<0.05), soil enzyme (p<0.1) and functional groups activity (p<0.05). SPI decreased in both sites with CLC application. No significant variations were detected for the chemical variables, with the exception of NMP, which was significantly high (p<0.05) in soil treated with CLC at both sites.Research highlights: The improved biological soil properties analyzed (MBC, soil enzyme activities and SPI, together with NMP) emerged as reasonable indicators to assess and monitor the effects of CLC application.