Insights into Circular Horticulture

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 the circular economy. This research field's performance approaches and trends were assessed through a bibliometric and text-mining analysis of the literature. Our 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

Agricultural engineering · Agriculture · Biology · Business · Circular economy · Economics · Environmental planning · Fertigation · Geography · Greenhouse · Natural resource economics · Nutrient · Resource (disambiguation · Reuse · Sustainable agriculture · Waste management · Agriculture Sustainability and Environmental Impact · Computer Science · Engineering · Environmental Science · Food Waste Reduction and Sustainability · Sustainable Supply Chain Management · Biotechnology · Ecology · Horticulture

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