Technology offer : Coculture for soil refertilization

Technology's description

The intensive cultivation of non-native forest plants or fruit on a territory (e.g. Eucalyptus camaldulensis and Pinus patula in Madagascar) may tend to decrease the biological activity of soil. To overcome this problem IRD (Research & Developement Institut - France) and CNRE (Centre National de Recherches sur l'Environnement - National Environmental Research Center - Madagascar) have developed a new process that combines a "nurse" plant with a target arboreal strain or a fruit tree strain.

A "nurse" plant is determined by its mycorrhizal symbiosis compatibility with the target plant. After culturing the "nurse" plant in a soil, the target species (or a seed) is introduced into this soil. After several months, the root system of the target plant has seen its mycorrhizal development improved and the plant is ready to be reintroduced into the natural environment.

Once it is planted in the fields, the effect of the target plant will increase the mycorrhizal development of the soil and make it more fertile.


  • Adaptable to many couples : nurse plant / target plant
  • Recreate a vegetal cover in a depleted or infertile soil
  • Uses of aerial part of nurse plant for economical aspects
  • Growth enhancement of the target plant
  • Respectful of the environnement
  • Better microenvironnement created by the nursed plant
Ref : OT-00025

Area of activity : AGRONOMY

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Industrial applications

  • Industrial nursery, Reforestation, Vegetation

Intellectual property

  • This technology is protected by a patent

Technology transfer

  • Know-how
  • License


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