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Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture

Oliver Grunert (UGent) , Dirk Reheul (UGent) , Marie-Christine Van Labeke (UGent) , Maaike Perneel (UGent) , Emma Hernandez Sanabria (UGent) , Siegfried Vlaeminck (UGent) and Nico Boon (UGent)
(2016) MICROBIAL BIOTECHNOLOGY. 9(3). p.389-399
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Abstract
Vegetables and fruits are an important part of a healthy food diet, however, the eco-sustainability of the production of these can still be significantly improved. European farmers and consumers spend an estimated Euro15.5 billion per year on inorganic fertilizers and the production of N-fertilizers results in a high carbon footprint. We investigated if fertilizer type and medium constituents determine microbial nitrogen conversions in organic growing media and can be used as a next step towards a more sustainable horticulture. We demonstrated that growing media constituents showed differences in urea hydrolysis, ammonia and nitrite oxidation and in carbon dioxide respiration rate. Interestingly, mixing of the growing media constituents resulted in a stimulation of the function of the microorganisms. The use of organic fertilizer resulted in an increase in amoA gene copy number by factor 100 compared to inorganic fertilizers. Our results support our hypothesis that the activity of the functional microbial community with respect to nitrogen turnover in an organic growing medium can be improved by selecting and mixing the appropriate growing media components with each other. These findings contribute to the understanding of the functional microbial community in growing media and its potential role towards a more responsible horticulture.
Keywords
ROOT-OXYGENATED SEDIMENTS, SOILLESS CULTURE-SYSTEMS, AMMONIA-OXIDIZING BACTERIA, COMMUNITY STRUCTURE, FOREST SOILS, ARCHAEA, ACIDIC SOILS, CARBON, OXIDATION, BIOMASS

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MLA
Grunert, Oliver et al. “Growing Media Constituents Determine the Microbial Nitrogen Conversions in Organic Growing Media for Horticulture.” MICROBIAL BIOTECHNOLOGY 9.3 (2016): 389–399. Print.
APA
Grunert, O., Reheul, D., Van Labeke, M.-C., Perneel, M., Hernandez Sanabria, E., Vlaeminck, S., & Boon, N. (2016). Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture. MICROBIAL BIOTECHNOLOGY, 9(3), 389–399.
Chicago author-date
Grunert, Oliver, Dirk Reheul, Marie-Christine Van Labeke, Maaike Perneel, Emma Hernandez Sanabria, Siegfried Vlaeminck, and Nico Boon. 2016. “Growing Media Constituents Determine the Microbial Nitrogen Conversions in Organic Growing Media for Horticulture.” Microbial Biotechnology 9 (3): 389–399.
Chicago author-date (all authors)
Grunert, Oliver, Dirk Reheul, Marie-Christine Van Labeke, Maaike Perneel, Emma Hernandez Sanabria, Siegfried Vlaeminck, and Nico Boon. 2016. “Growing Media Constituents Determine the Microbial Nitrogen Conversions in Organic Growing Media for Horticulture.” Microbial Biotechnology 9 (3): 389–399.
Vancouver
1.
Grunert O, Reheul D, Van Labeke M-C, Perneel M, Hernandez Sanabria E, Vlaeminck S, et al. Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture. MICROBIAL BIOTECHNOLOGY. 2016;9(3):389–99.
IEEE
[1]
O. Grunert et al., “Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture,” MICROBIAL BIOTECHNOLOGY, vol. 9, no. 3, pp. 389–399, 2016.
@article{8027945,
  abstract     = {Vegetables and fruits are an important part of a healthy food diet, however, the eco-sustainability of the production of these can still be significantly improved. European farmers and consumers spend an estimated Euro15.5 billion per year on inorganic fertilizers and the production of N-fertilizers results in a high carbon footprint. We investigated if fertilizer type and medium constituents determine microbial nitrogen conversions in organic growing media and can be used as a next step towards a more sustainable horticulture. We demonstrated that growing media constituents showed differences in urea hydrolysis, ammonia and nitrite oxidation and in carbon dioxide respiration rate. Interestingly, mixing of the growing media constituents resulted in a stimulation of the function of the microorganisms. The use of organic fertilizer resulted in an increase in amoA gene copy number by factor 100 compared to inorganic fertilizers. Our results support our hypothesis that the activity of the functional microbial community with respect to nitrogen turnover in an organic growing medium can be improved by selecting and mixing the appropriate growing media components with each other. These findings contribute to the understanding of the functional microbial community in growing media and its potential role towards a more responsible horticulture.},
  author       = {Grunert, Oliver and Reheul, Dirk and Van Labeke, Marie-Christine and Perneel, Maaike and Hernandez Sanabria, Emma and Vlaeminck, Siegfried and Boon, Nico},
  issn         = {1751-7907},
  journal      = {MICROBIAL BIOTECHNOLOGY},
  keywords     = {ROOT-OXYGENATED SEDIMENTS,SOILLESS CULTURE-SYSTEMS,AMMONIA-OXIDIZING BACTERIA,COMMUNITY STRUCTURE,FOREST SOILS,ARCHAEA,ACIDIC SOILS,CARBON,OXIDATION,BIOMASS},
  language     = {eng},
  number       = {3},
  pages        = {389--399},
  title        = {Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture},
  url          = {http://dx.doi.org/10.1111/1751-7915.12354},
  volume       = {9},
  year         = {2016},
}

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