Policy instruments to reduce food loss prior to retail - Perspectives of fruit and vegetable supply chain actors in Europe.

Food loss and waste burdens the food system with an unnecessary use of natural resources such as soil, land and water as well as with the avoidable generation of further climate-relevant emissions. These negative externalities may provide a rationale for public sector intervention where feasible and efficient. Semi-structured interviews with 22 experts (farmers, producer organisations and retailers) in Germany and a questionnaire survey with 215 suppliers of a retailing company from Germany, Spain and Italy were conducted. The material reveals the perspectives and claims of relevant actors in upstream fruit and vegetable supply chains on political intervention. Stakeholders identified policy instruments from four overarching thematic categories: (I) communicative and cooperative policies, (II) subsidisation and food prices, (III) regulation and political framework conditions and (IV) questioning of necessity and effectiveness of food loss interventions. Four further categories of private sector measures were identified: (I) mechanisation, innovation and process optimisation, (II) communication and cooperation, (III) reconditioning and repackaging and (IV) processing, alternative marketing and redistribution. Issues that should be addressed by policy include consumer education and awareness, supply chain cooperation and power relations, food prices, marketing standards, alternative marketing and processing and promotion of technologies, infrastructure and agronomic practices to reduce food loss. The study shows that additional leverage points for policy action are still unrecognised and that stakeholders should be more involved in tackling the root causes of food loss. These policies should be holistically embedded in the sustainability transformation of the food system.

Legacy effects of temporary grassland in annual crop rotation on soil ecosystem services.

The introduction of temporary grassland into an annual crop rotation is recognized to improve soil ecosystem services, and resulting legacies can be beneficial for the following crops. In this context, the aim of the present study was to evaluate legacy effects of introducing temporary grassland into an annual crop rotation on five ecosystem services (i) soil structure maintenance (aggregate stability), (ii) water regulation (saturated hydraulic conductivity), (iii) biodiversity conservation (microbial biomass and microbial metabolic activity, as well as microorganism, enchytraeid, springtail and earthworm communities), (iv) pathogen regulation (soil suppressiveness to Verticillium dahliae), and (v) forage production and quality. Three crop rotation schemes, maintained for twelve years, were compared in four random blocks, one being an annual crop rotation without grassland (0%), another with a medium percentage of grassland (50%, corresponding to 3 years of continuous grassland in the crop rotation), and a third one with a high percentage of grassland in the crop rotation (75%, corresponding to 6 years of continuous grassland in the crop rotation). The results showed that the grassland introduction into an annual crop rotation improved, whatever the duration of the grassland, soil structure maintenance and biodiversity conservation, while it decreased pathogen regulation and did not modify water regulation. Comparing the two crop rotations that included grassland, indicated a stronger beneficial grassland legacy effect for the higher proportion of grassland concerning soil structure maintenance and biodiversity conservation. By contrast, water regulation, pathogen regulation and forage production were not affected by the legacy of the 75% grassland during the rotation. Overall, our findings demonstrated the extent to which grassland legacies are affecting the current state of soil properties and possible ecosystem services provided. To improve ecosystem services, soil management should take legacy effects into account and consider longer timeframes to apply beneficial practices.