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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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The FERTI-DIG project


Guide to good practices for digestate spreading to maximise the agronomic value and minimise impacts on soil fertility



Methanisation, encouraged by regulations and the societal context, seems to be a relevant solution to contribute to energetic transition and to territorial circular economies. Nevertheless, given the wide-scale development of methanisation in France, it is important to monitor fertilisation with digestate to ensure optimal plant nutrition and limit the associated impacts. Agronomic use of digestates involves understanding drivers of physico-chemical characteristics and effects on soil fertility as a function of the source of the digestate, as well as spreading, soil and climate contexts.

The overall aim of the FERTI-DIG project (ADEME/GRDF, 2021-2023) is to produce a guide to good practices for digestate spreading to help improve the sustainability of methanisation.

SAS staff involved


  • INRAE LBE (Narbonne) : Julie JIMENEZ, Dominique PATUREAU
  • INRAE ECOSYS (Grignon) : Sabine HOUOT, Florent LEVAVASSEUR,
  • INRAE SAS (Rennes) : Aurélia MICHAUD, Safya MENASSERI, Guenola PERES
  • INRAE EMMAH (Avignon) : Yvan CAPOWIEZ, Céline PELOSI
  • SOLAGRO : Sylvaine BERGER, Céline LABOUBEE
  • CRA Bretagne (CRAB) : Mariana MOREIRA
  • CRA Grand Est (CRAGE) : Marie DELAUNE
  • Acta : Mathilde HEURTAUX


  • GRDF