Functioning of N2-Fixing Symbiosis in Grain Legumes: Agronomic and Environmental Impacts
This study examines the N2-fixing symbiosis in grain legumes, its regulation by soil nitrate availability and environmental factors, and quantifies nitrogen distribution in harvested organs, residues, and soil. It further evaluates how residue mineralization contributes to subsequent crop nutrition and the balance between reduced fertilizer needs and potential nitrate leaching.
or
Detail description
This paper details the physiological and agronomic functioning of symbiotic nitrogen fixation in grain legumes. It describes how soil nitrate availability, environmental conditions, and genetic factors regulate N2 fixation throughout the crop cycle. By quantifying nitrogen accumulation in seeds, straws, and soil, it explores how mineralization of legume residues can supply nitrogen to following crops and how agronomic practices can optimize this resource. The study also assesses the benefits and risks of introducing legumes into low-diversity cropping systems, highlighting reduced nitrogen fertilizer requirements alongside potential nitrate leaching losses.
1/1
or
Contribution detail info
- Project
- Location
- France
- Authors
- Anne-Sophie VOISIN, Pierre CELLIER et Marie-Hélène JEUFFROY
- Purpose
- Adopt innovative practices
- File type
- document
- Created on
- 01 DFómh 2013
- Origin language
- French
- Official project website
- Innovations agronomiques
- License
- CC BY