Microbial biomass phosphorus contributions to phosphorus solubility in riparian vegetated buffer strip soils

TitleMicrobial biomass phosphorus contributions to phosphorus solubility in riparian vegetated buffer strip soils
Publication TypeJournal Article
Year of Publication2013
AuthorsRoberts WM, Matthews RA, Blackwell MSA, Peukert S, Collins AL, Stutter MI, Haygarth PM
JournalBiology and Fertility of Soils
Volume49
Pagination1237-1241
Date PublishedNovember 01
Type of Articlejournal article
ISBN Number1432-0789
Abstract

This study tests the hypothesis that microbial biomass phosphorus (P) makes a significant contribution to P solubility in riparian buffer strip soils. In 36 soils collected from buffer strips within three UK soil associations, water-extractable inorganic P solubility was most strongly related to NaHCO3 extractable inorganic P. However, within individual soil associations where soil pedological properties and management were similar, water-extractable inorganic P was most strongly related to microbial biomass P. These results highlight the difficulty in predicting dissolved P leaching risk based on agronomic soil P tests alone and the dissolved P leaching risk presented by having soils high in organic matter and microbial biomass P in close proximity to surface waters.

Short TitleBiol. Fertil. Soils
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