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

Dernière mise à jour : Mai 2018

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EFELE - Bretagne (Ille et Vilaine)

© Morvan
EFELE is one of the 4 SOERE PRO strongly instrumented experimental field.

EFELE has been initiated in 2012

The objectives are to characterize the agronomic value of composts and the environmental impacts of OWP from breeding.

  • Location: Rennes – France
  • Administrator unit: UMR SAS INRA - AgroCampusOuest (
  • Supervisor and contact: Thierry Morvan INRA (
  • Metrology supervisor: Jérôme Chiffe (
  • Number of treatments: 48 (3-4 replicates)
  • Plot size: ≈120m²(PROs device) - ≈ 550m² (TS/MO device)
  • Surface SHON and nature : 1.7 ha (0.5 ha - PROs device and 0.7 ha - TS/MO device)


The experimental plan of the EFELE field experimentation contains 48 plots divided in 2 devices:  

- “Essai TS/MO” studies the effect of soil tillage and reduced tillage, crossed with farmyard manure and mineral N fertilization.

- “Essai PROs” studies the effect of various farm effluents, with different OWP treatments.

The devices are further divided in blocks of replicates, and each block corresponds to a randomized repetition of the following treatments:

"Essai PROs" :
  • 5 OWP : farmyard manure (FB), compost of pig manure (CP), poultry manure (FV), pig slurry (LP) et digestate of pig slurry (DIG-LP)
  • 2 controls (0N and MIN)
  • 2 OWP avec mineral N fertilization (CP + N and FB + N)
"Essai TS/MO" :
  • Farmyard manure versus mineral N fertilization
  • Tillage (L-) versus reduced tillage (TS-)

Figure : Plan of the 2 EFELE experimental devices (Morvan)

Site Management

The field is cultivated with a maize/wheat crop rotation, and white mustard is sown after the wheat to cover the soil during the intercropping period.


Figure : Devices, monitoring rooms for GHG emissions and spreading on EFELE site (Morvan)

Site instrumentation and monitoring

The hydrodynamic functioning monitoring of the soil is ensured by the continuous measurement of the content and the pressure of the water in the soil, on the rooting profile. The water composition is determined by sampling the water collected by wicking lysimeters placed at a depth of 40 cm and at the rooting limit of the cultures (depth of 90 cm). GHG emissions are measured by a device consisting of automatic measuring chambers, allowing monitoring of CO2 and N2O.

Pedo-climatic context

The experimental site is located in Le Rheu. The soil is classified as luvisol-redoxisol derived from aeolian silt on an alluvial terrace deposited on schist material. It is a loamy soil, characterized by a low organic matter content (10.8 ±0.73 gC kg-1 soil in 2012), a pH value around 6. Soil texture of the upper layer consist in  15% clay, 24% fine silt,  45% coarse silt, 10% fine sand, and 6%  coarse sand.

The climate is mild oceanic temperate, with a mild winter and warm summer. Annual rainfall heights are less than 700 mm. Monthly average temperatures range from 19°C for the months of July and August to 6°C for January and February (averages calculated over the period 1981-2010).



EFELE comes from a partnership between INRA, ADEME, Arvalis, CG35.


You can download the brochure :

See next => SOERE PRO Reunion