Biochar has previously been used in growing media blends as fertilizer or for improving plant growth, disease suppression, and a sustainable replacement of peat. To achieve optimal circular horticulture, we propose here to reuse the biochar from spent media. However, it is unclear what extent feedstock determines mode action if use may encounter nutrient salt problems. Differences chemical char...

Soilless systems, such as hydroponics and aquaponics, are gaining popularity a sustainable alternative to traditional soil-based agriculture, aiming at maximizing plant productivity while minimizing resource use. Nonetheless, the absence of soil matrix poses challenges that require precise management nutrients, effective control salinity stress, proactive strategies master disease management. P...

The objective of this study was to determine the persistence of Metarhizium anisopliae (F52), measured as infectivity against black vine weevil larvae, in a soilless potting medium at six wholesale nursery locations across the Willamette Valley, Oregon. A granule formulation (0.30 and 0.60 kg/m(3)) was incorporated into media at planting and fungal persistence determined over two growing season...