Association d’une culture de rente et espèces compagnes permettant la fourniture de services écosystémiques
Year: 2023
Type: preprint
Abstract: With the shift towards a reduced reliance on external inputs in agriculture, diversification of vegetation through companion mixing crop with annual crop could serve multiple purposes, including (i) regulating insect pest densities, (ii) reducing weeds, (iii) increasing nitrogen through fixation and (iv) improving yield and crop quality. The aim of this paper is to present the ecosystemic services for two examples: winter oilseed rape (WOSR) with companion plants and relay intercropped legumes cover crops undersown in winter wheat. For both examples, weed biomass and weed cover rate are reduced comparing to the sole crop. The benefit of nitrogen for the WOSR in spring is around 10kg/ha for 0N experiments and for wheat, the improvement of nitrogen uptake of the subsequent crop could achieve 50% more than the control. The most promising companion plants are often legumes and mixing species of legumes. A reduction of 30kg/ha and sometimes 60kg/ha in WOSR fertilisation permit to achieve the same yield than sole crop. The success of these companion plants in annual crops is based on the cover crops establishment.
DOI: 10.17180/r3t2-d893
Authors: Valantin-Morison, Muriel, David, Catherine, Cadoux, Sylvain, Lorin, Mathieu, Celette, Florian, Amossé, Camille, Basset, Aude
Language: English
Subfield: Agronomy and Crop Science
Domain: Life Sciences
SDGs: Life on land, Zero hunger
Open Access status: green
OpenAlex ID: W2735831790