Project
The role of root traits and plasticity for crop-mixture performance and management
This project explores how root traits influence intercropping to sustain or enhance productivity while reducing fertilizer dependence. Since belowground interactions are difficult to study directly, we use models to investigate root traits in ways not possible in reality. These models simulate 3D plant growth, incorporating key processes like photosynthesis and nutrient uptake. By modifying root traits and testing their plastic responses, we assess their impact on intercropping. Examples include nitrogen fixation and root emergence patterns, such as number, angles, and branching frequency.
Background
Cultivating crop mixtures instead of monocrops is a potent way to sustainably increase crop production. Sufficient fertilizer inputs eliminate belowground limitations in crop mixtures; however environmental dangers urge reduced fertilizer usage. The root architecture determines the plant’s access to nutrients and competitive ability. Specific root traits form the root architecture. This project uses modelling techniques to study the role of root traits for crop-mixture performance and management.
Project description
Greenhouse and field experiments will be used to parameterize and validate the functional-structural models of a cereal (oat) and a legume (faba bean). Modell simulations will be used to assess the role of intrinsic root traits and their plastic responses for crop mixture performance and management.
This project is part of the CropMix programme.