Combining cash crops with companion species to deliver ecosystem services
This study evaluates ecosystem services from intercropping companion plants with winter oilseed rape and relay legumes in wheat, showing reductions in weed biomass and improved nitrogen supply (10 kg/ha for rape and 50% more uptake in the following wheat), enabling 30–60 kg/ha fertilizer savings without yield loss.
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Detaljerad beskrivning
The article reports on field trials of two intercropping systems: winter oilseed rape sown with companion species at the start of its cycle, and winter wheat under-sown in relay with legume cover crops. Both associations reduced weed biomass and ground cover compared to sole crops. In unfertilized rape trials, companion plants contributed an average of 10 kg N/ha in spring, while relay-intercropped legumes enhanced nitrogen uptake in the following wheat by over 50% compared to the control. Leguminous mixtures emerged as the most effective companions, allowing fertilizer reductions of 30–60 kg N/ha without yield penalties. Establishing a robust companion cover was identified as critical for success.
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Detaljerad information om bidrag
- Projekt
- Plats
- France
- Författarna
- Muriel VALANTIN-MORISON, Catherine DAVID, Sylvain CADOUX, Mathieu LORIN, Florian CELETTE, Camille AMOSSÉ et Aude BASSET
- Syfte
- Adopt innovative practices
- Filtyp
- dokument
- Skapad den
- 01 nov. 2014
- Ursprungspråk
- French
- Officiell projektwebbplats
- Innovations agronomiques
- Licens
- CC BY