Improved Phosphorus Recycling in Organic Farming: Navigating Between Constraints
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Improved Phosphorus Recycling in Organic Farming : Navigating Between Constraints. / Möller, Kurt; Oberson, Astrid; Bünemann, Else K.; Cooper, Julia; Friedel, Jürgen K.; Glæsner, Nadia; Hörtenhuber, Stefan; Løes, Anne Kristin; Mäder, Paul; Meyer, Gregor; Müller, Torsten; Symanczik, Sarah; Weissengruber, Lina; Wollmann, Iris; Magid, Jakob.
Advances in Agronomy. Vol. 147 2018. p. 159-237 (Advances in Agronomy).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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TY - CHAP
T1 - Improved Phosphorus Recycling in Organic Farming
T2 - Navigating Between Constraints
AU - Möller, Kurt
AU - Oberson, Astrid
AU - Bünemann, Else K.
AU - Cooper, Julia
AU - Friedel, Jürgen K.
AU - Glæsner, Nadia
AU - Hörtenhuber, Stefan
AU - Løes, Anne Kristin
AU - Mäder, Paul
AU - Meyer, Gregor
AU - Müller, Torsten
AU - Symanczik, Sarah
AU - Weissengruber, Lina
AU - Wollmann, Iris
AU - Magid, Jakob
PY - 2018
Y1 - 2018
N2 - Phosphorus (P) is an essential element for all living organisms. At the current rate of extraction, global reserves of mineable deposits will be exhausted within the next few centuries. This publication aims to summarize the current knowledge on P recycling for organic farming. The evaluation of recycled P fertilizers (RPFs) includes (i) a chemical characterization, (ii) assessment of their plant P availability and added effects in the soil, (iii) life cycle assessments, (iv) a risk assessment of their long-term impacts on soil pollution, and (v) the compilation of other environmental impacts of different treatment approaches to produce RPFs. The highest nutrient recovery rates for P are achieved by rather simple process approaches of P recycling, while more sophisticated approaches often result in lower P recovery rates (e.g., chemical approaches for P precipitation), lower plant P availability in the final product (e.g., most thermal approaches), and losses of organic matter and nutrients like nitrogen and sulfur (e.g., thermal approaches). The plant P availability of many RPFs is higher than that of phosphate rock. Each P recycling approach has strengths and weaknesses. We conclude that any decision not to use a potential recycled P source or to introduce sophisticated treatments may have consequences compromising the ability of future generations to meet their needs. Nevertheless, we need to minimize risks for current and future generations caused by contamination linked to fertilization. Therefore, any management of nutrient recycling requires navigation between constraints. The challenge for the organic agriculture sector is to assess RPFs using a balanced approach that compromises neither the principle of ecology nor the principle of care.
AB - Phosphorus (P) is an essential element for all living organisms. At the current rate of extraction, global reserves of mineable deposits will be exhausted within the next few centuries. This publication aims to summarize the current knowledge on P recycling for organic farming. The evaluation of recycled P fertilizers (RPFs) includes (i) a chemical characterization, (ii) assessment of their plant P availability and added effects in the soil, (iii) life cycle assessments, (iv) a risk assessment of their long-term impacts on soil pollution, and (v) the compilation of other environmental impacts of different treatment approaches to produce RPFs. The highest nutrient recovery rates for P are achieved by rather simple process approaches of P recycling, while more sophisticated approaches often result in lower P recovery rates (e.g., chemical approaches for P precipitation), lower plant P availability in the final product (e.g., most thermal approaches), and losses of organic matter and nutrients like nitrogen and sulfur (e.g., thermal approaches). The plant P availability of many RPFs is higher than that of phosphate rock. Each P recycling approach has strengths and weaknesses. We conclude that any decision not to use a potential recycled P source or to introduce sophisticated treatments may have consequences compromising the ability of future generations to meet their needs. Nevertheless, we need to minimize risks for current and future generations caused by contamination linked to fertilization. Therefore, any management of nutrient recycling requires navigation between constraints. The challenge for the organic agriculture sector is to assess RPFs using a balanced approach that compromises neither the principle of ecology nor the principle of care.
KW - Biosolids
KW - Life cycle assessment
KW - Meat and bone meal
KW - Organic pollutants
KW - P fertilizer effectiveness
KW - Potentially toxic elements
KW - Recycled phosphorus fertilizers
KW - Risk assessment
KW - Urban organic wastes
U2 - 10.1016/bs.agron.2017.10.004
DO - 10.1016/bs.agron.2017.10.004
M3 - Book chapter
AN - SCOPUS:85034056262
SN - 978-0-12-815283-6
VL - 147
T3 - Advances in Agronomy
SP - 159
EP - 237
BT - Advances in Agronomy
ER -
ID: 218400241