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The effects of 55 years of different inorganic fertiliser regimes on soil properties and microbial community composition

Williams, Alwyn ; Börjesson, Gunnar ; Hedlund, Katarina

Soil biology & biochemistry, 2013-12, Vol.67, p.41-46 [Periódico revisado por pares]

Amsterdam: Elsevier Ltd

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Título:
The effects of 55 years of different inorganic fertiliser regimes on soil properties and microbial community composition
Autor: Williams, Alwyn ; Börjesson, Gunnar ; Hedlund, Katarina
Assuntos: Agriculture ; Agronomy. Soil science and plant productions ; Biochemistry and biology ; Biologi ; Biological and medical sciences ; Biological Sciences ; carbon ; Chemical, physicochemical, biochemical and biological properties ; community structure ; crop yield ; depletion ; Earth and Related Environmental Sciences ; Ecology ; Ekologi ; Fertilisation ; fertilizer application ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Generalities. Analysis and diagnosis methods ; Geovetenskap och miljövetenskap ; Markvetenskap ; microbial communities ; Microbial community ; mineral fertilizers ; Natural Sciences ; Naturvetenskap ; Nitrogen ; Nutrient ; Nutrient depletion ; Organic matter ; Phosphorous ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; potassium ; rock phosphate ; Soil organic carbon ; soil properties ; Soil Science ; Soil-plant relationships. Soil fertility. Fertilization. Amendments ; topsoil ; Triticum aestivum ; winter wheat
É parte de: Soil biology & biochemistry, 2013-12, Vol.67, p.41-46
Notas: http://dx.doi.org/10.1016/j.soilbio.2013.08.008
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Descrição: Agricultural fertilisation increases crop yields but can cause environmental damage, thus reductions in inorganic fertiliser application have been advocated. Farmer usage of phosphate rock has declined over the last decade, which may lead to soil nutrient depletion that undermines future crop production. We investigated the long-term (55 years) effects of eight different inorganic fertiliser regimes at four sites: no phosphorous and potassium (PK) fertilisation or annual replacement of harvested PK, combined with 0, 50, 100, or 150 kg nitrogen (N) ha−1 yr−1 on a range of soil properties and microbial community composition. We also investigated whether differences in microbial community composition under different fertiliser regimes arose from differences in underlying soil properties, changes in soil properties resulting indirectly from fertilisation, or directly from fertilisation. Reduced fertiliser application significantly reduced topsoil organic carbon and N, as well as plant-available P. This significantly reduced sugar beet yields but had less impact on winter wheat. The different fertiliser regimes had no significant effect on microbial community composition. Differences in soil properties as a result of fertilisation were less than differences between sites, and differences in microbial community composition were mainly explained by site. The results show that long-term inorganic fertiliser practices have little impact on microbial community composition, and lend support to research showing that microbial community composition is more influenced by organic matter inputs and underlying soil properties. •Soil microbial biomass and community composition unaffected by fertilisation.•Fertiliser induced changes to soil properties (SP) less than differences in SP between field sites.•Microbial community composition mainly explained by underlying SP, not fertilisation.
Editor: Amsterdam: Elsevier Ltd
Idioma: Inglês

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The effects of 55 years of different inorganic fertiliser regimes on soil properties and microbial community composition

Williams, Alwyn ; Börjesson, Gunnar ; Hedlund, Katarina

Amsterdam: Elsevier Ltd

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