Pedosphere 27(1): 1--16, 2017
ISSN 1002-0160/CN 32-1315/P
©2017 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Biosolid application to agricultural land---a contribution to global phosphorus recycle: A review
S. I. TORRI1, R. S. CORRÊA2 and G. RENELLA3
1Department of Natural Resources and Environment, School of Agriculture, University of Buenos Aires, Avenue San Martin 4453, Buenos Aires 1417 DSE (Argentina)
2University of Brasília-UnB/PPGCA, Campus Darcy Ribeiro, Caixa Postal 04.401, 70910-970 DF (Brazil)
3Department of Agrifood Production and Environmental Sciences, University of Florence, Piazzale delle Cascine 18, Florence 50144 (Italy)
ABSTRACT
      Phosphorus (P) is an essential nutrient required for plant development. Continuous population growth and rising global demand for food are expected to increase the demand for phosphate fertilizers. However, high-quality phosphate rock reserves are progressively becoming scarce. Part of the increased pressure on P resources could be alleviated by recycling P present in biosolids. Therefore, it is crucial to understand the dynamics of P in biosolid-amended soils, the effects of residual biosolid-borne P in soils, the way in which microorganisms may control P dynamics in biosolid-amended soils and the environmental implications of the use of biosolids as a source of P. Further research is needed to maximize biosolid-borne P uptake by crops and minimize its loss from biosolid-amended soils. The analysis of the microbiological control of P dynamics in biosolid-amended soils indicates interactions of biosolid P with other nutrients such as carbon (C) and nitrogen (N), suggesting that harmonization of the current regulation on the use of biosolids in agriculture, mainly based on total N and pollutant contents, is needed to better recycle P in agriculture.
Key Words:  anthropogenic P, P availability, phosphate, P biogeocycle, P uptake, runoff P
Citation: Torri, S. I., CorrÊa, R. S. and Renella, G. 2017. Biosolid application to agricultural land---a contribution to global phosphorus recycle: A review. Pedosphere. 27(1): 1-16.
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