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Insights into circular horticulture: knowledge diffusion, and greenhouse technologies

The integration of the circular economy in agriculture has promoted sustainable innovation in food production systems such as horticulture. The present paper illustrates how horticulture is transitioning to a circular economy. This research field's performance approaches and trends were assessed through a bibliometric and text-mining analysis of the literature.

The findings revealed that circular horticulture is a recent research field that is constantly growing. Its approach has been neither systemic nor integrative but fragmented. Bioeconomy, urban agriculture, recycled nutrients, biochar, fertigation, and desalination have been positioned as research hotspots. Vegetables and fruits are the most studied crops. Resource circulation has focused primarily on biowaste recovery to provide benefits such as biofertilizers and linear-substrate substitutes and on water reuse for the establishment of hydroponic systems.

The One Health approach is scarcely explored and, therefore, weakly articulated, wherein the absence of assessment methodologies encompassing the health of ecosystems, animals, and people is a notable limitation. Science-policy interfaces between One Health and food systems need to be improved. Lastly, greenhouse technologies are aligned with bioenergy, sustainable materials, and sensing technologies. Challenges and directions for future research have been raised to promote the redesign of horticultural production systems, integrating long-term circularity.

Read the complete research at

Numa Vergel, Stephanie & Salinas-Velandia, Diego & Galindo-Pacheco, Julio & Romero-Perdomo, Felipe & Villagran Munar, Edwin. (2022). Insights into Circular Horticulture: Knowledge Diffusion, Resource Circulation, One Health Approach, and Greenhouse Technologies. International Journal of Environmental Research and Public Health. 19. 1-17. 10.3390/ijerph191912053. 

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