Expanding Leaf Tissue Nutrient Survey Ranges for Greenhouse Cannabidiol-Hemp

摘要

Recent legislation allows US growers to produce industrial hemp (Cannabis sativa L.) under State Industrial Hemp Pilot Programs. Hemp can be produced for seed, fiber, or cannabidiol (CBD) (Johnson, 2018). Cannabidiol is a non-intoxicating cannabi-noid, and products from CBD-hemp are considered to have one of the greatest market potentials due to its pharmaceutical value (Cherney and Small, 2016). There are no researched nutrient recommendations specific to greenhouse CBD-hemp, few resources for diagnosing plant nutrient problems, and little scientific research supporting greenhouse production. While there are Cannabis nutrient survey tissue values reported by Bryson and Mills (2014), it is unknown if these values are applicable for both field and greenhouse CBD-hemp crops or if differences exist among Cannabis cultivars. The purpose of this study was to determine if there were leaf tissue nutrient differences among industrial hemp cultivars being grown as stock plants for CBD-hemp production. In addition, the goal was to provide more precise nutrient survey tissue values that would aid in diagnosing nutrient disorders.