Microbially-mediated P fluxes in calcareous soils as a function of water-extractable phosphate

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• 作者：Kimberley D. Schneider^a ; ^b ; ^{kschne01@uoguelph.ca} ; R. Paul Voroney^b ; Derek H. Lynch^c ; Astrid Oberson^a ; Emmanuel Frossard^a ; Else K. Bü ; nemann^a ; ^d
• 关键词：Organic phosphorus mineralization ; Isotopic dilution method ; 33P ; Available phosphorus ; Perennial forage ; Microbial P turnover
• 刊名：Soil Biology and Biochemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：51-60
• 全文大小：809 K
• 卷排序：106

文摘

Gross organic P mineralization and immobilization were determined in calcareous soils. Microbial 33P uptake was greatest in soils with the lowest available inorganic P. A faster rate of microbial P turnover when available inorganic P is low is indicated. Microbial processes make a significant contribution to P cycling in forage field soils.