| Title: |
Unveiling the effects of diversified prairies on wheat nutrition, phenology and growth in strip intercropping |
| Authors: |
Bécu, Thomas; Gross, Nicolas; Niboyet, Audrey; Alvarez, Gaël; Duchene, Olivier; Barot, Sébastien; Besson, Lisa; Pascon, Elodie; Roncoroni, Marilyn; Joannin, Magali; Fontaine, Sébastien |
| Contributors: |
Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP); VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris); Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); AgroParisTech; Agroécologie et Environnement (AGE); ISARA; Unité Expérimentale PHénotypage Au Champ des Céréales (UE1375) (PHACC); Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); I-SITE Clermont (Project AGROPRAIRIES – CIR Axis 2); Project CULTIVDUR – Pack Ambition Recherche 2021; ANR-20-PCPA-0006,MoBiDiv,Mobilizing and Breeding Intra and inter-specific crop Diversity for a systemic change towards pesticide-free agriculture(2020) |
| Source: |
https://hal.science/hal-05319034 ; 2025. |
| Publisher Information: |
CCSD |
| Publication Year: |
2025 |
| Subject Terms: |
Agroecosystem diversification; Strip intercropping; Wheat nutrition; Diversified prairies; Plant-plant interactions; Functional traits; N fertilization; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy |
| Description: |
Crop diversification is a promising strategy to improve agroecosystem sustainability in terms of plant nutrition and production, but it is frequently too restricted to reach its full potential. Insufficient diversity prevents agroecosystems from using nitrogen (N) efficiently enough to maintain enough yield without strongly relying on external inputs that are damaging to the environment. We advocate that combining annual crops like winter wheat with perennial and diversified prairies would be a major step toward enhancing cereal system sustainability, by promoting plant-soil interactions that improve long-term plant nutrition and growth. Yet, managing highly diversified agroecosystems requires a better understanding of complex and dynamic plant-plant interactions that can either boost or hinder crop development. We conducted a field experiment in which we associated four varieties of wheat with four functionally different prairies, in fine scale strips intercropping systems called "agroprairies". We assessed the effects of prairie strips on wheat nutrition, phenology, and growth under two N-fertilization conditions, with a focus on the influence of prairie functional traits. The analysis of the interactions between prairie functional trait syndromes, N fertilization, and wheat varieties uncovered key parameters that favor beneficial outcomes. Notably, we showed that plant resource-acquisitive trait syndrome known to shape N release from soil resources and a higher proportion of legumes in prairie strips significantly improved wheat nutrition, earliness, growth and biomass production. Our study reveals an existing avenue for developing cropping systems that incorporate high species richness, with synergistic benefits based on the mobilization of N from the soil and the atmosphere. |
| Document Type: |
report |
| Language: |
English |
| Availability: |
https://hal.science/hal-05319034; https://hal.science/hal-05319034v1/document; https://hal.science/hal-05319034v1/file/Preprint%20Becu%20et%20al%201st%20submission.pdf |
| Rights: |
http://creativecommons.org/licenses/by-nc/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.5B9B41D4 |
| Database: |
BASE |