MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

Graphical abstract

References

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Compliance with ethics guidelines

Daan Verstand, Theun Vellinga, Krijn Poppe, and Pieter de Wolf declare that they have no conflicts of interest or financial conflicts to disclose.

This article does not contain any studies with human or animal subjects performed by any of the authors.

RIGHTS & PERMISSIONS

The Author(s) 2020. Published by Higher Education Press. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0)