Long-term farmyard manure application affects soil organic phosphorus cycling: A combined metagenomic and 33P/14C labelling study

A - Papers appearing in refereed journals

Ma, Q., Wen, Y., Ma, J., Macdonald, A. J., Hill, P. W., Chadwick, D. R., Wu, L. and Jones. D. L. 2020. Long-term farmyard manure application affects soil organic phosphorus cycling: A combined metagenomic and 33P/14C labelling study. Soil Biology and Biochemistry. 149 (Article), p. 107959. https://doi.org/10.1016/j.soilbio.2020.107959

AuthorsMa, Q., Wen, Y., Ma, J., Macdonald, A. J., Hill, P. W., Chadwick, D. R., Wu, L. and Jones. D. L.
Abstract

Maintaining an adequate phosphorus (P) supply for plants and microorganisms is central to agricultural production; however, the long-term effects of organic manure and inorganic fertilizer application on soil P cycling remain unclear. Organic P cycling in a sandy loam soil receiving medium and high rates of farmyard manure (FYM) with and without mineral fertilisers was studied in a long-term field experiment with 14C/33P isotope labelling and metagenomic shotgun sequencing. FYM application alone negatively affected soil total P and organic P (Po) accumulation by enhancing crop offtake, enhancing Po mineralisation and stimulating P loss from the topsoil by reducing its P sorption potential. The P mineralisation/immobilisation rates detected by the 33P pool dilution method were significantly correlated with the abundance of microbial P cycling genes. Soil available C and N concentrations were related to gross P mineralisation/immobilisation rates and the abundance of P uptake/scavenging genes. Microbial genes related to P uptake and metabolism were more abundant than P scavenging genes, while P scavenging genes may work efficiently as both of them can sustain similar P mineralisation and immobilisation rates. The addition of FYM also promoted phosphatase activity reflecting the increased supply of Po in these soils. Our study demonstrates that long-term FYM application alters soil Po stocks and cycling, and that microbial functional gene abundance was coupled with P cycling rates

KeywordsLong-term fertilisation ; Phosphorus cycling; Soil layers; Substrate sorption; Waste management and recycling
Year of Publication2020
JournalSoil Biology and Biochemistry
Journal citation149 (Article), p. 107959
Digital Object Identifier (DOI)https://doi.org/10.1016/j.soilbio.2020.107959
Web address (URL)https://dx.doi.org/10.1016/j.soilbio.2020.107959
Open accessPublished as non-open access
FunderBBSRC Newton funding
Funder project or codeThe Rothamsted Long Term Experiments [2017-2022]
Output statusPublished
Publication dates
Online14 Aug 2020
Publication process dates
Accepted13 Aug 2020
PublisherElsevier
ISSN0038-0717

Permalink - https://repository.rothamsted.ac.uk/item/98213/long-term-farmyard-manure-application-affects-soil-organic-phosphorus-cycling-a-combined-metagenomic-and-33p-14c-labelling-study

Restricted files

Publisher's version

Under embargo indefinitely

34 total views
0 total downloads
32 views this month
0 downloads this month