Common guidelines for sampling methods

Common guidelines for sampling methods will be defined and shared among all the partners. An appropriate definition of the sampling methods is necessary: timing, number of samples per crop/site, technical replicates. A common guideline for sampling methodologies will be also developed for the different analyses. All partners will host field trials and will be responsible for sampling plants and soils and preparing samples for subsequent analysis. In all field trials an untreated control will be used to compare treatment effects.