composted palm waste as an alternative of coco peat in growing media: effects on growth and nutritional status of lily cut flower (lilium spp.)

Purpose: a greenhouse experiment was conducted to evaluate the effect of the mixture of different growing media (palm trunk: resulted from palm trunk only; palm tree: resulted from all palm organs; coco peat; perlite; reused coco peat) on growth and nutrient uptake of lily cut flower. research method: treatments including two cultivars (tiber and candy club) and eleven growing media compositions were set up in a factorial experiment based on a completely randomized design. findings: the control showed the highest leaf surface area, bulb depletion rate, and mg content, while the higher plant height and the leaves number were observed in 40% and 80% palm trunk treatments, respectively. furthermore, the 40% palm trunk resulting in a higher fe content. the highest bud's number, k, cu, and mn content measured in candy club, which was cultivated on 20% palm tree treatment, that increased by an average of 10.1%, 15.8%, 67.4%, and 54.3%, respectively compared to the control. the candy club has grown on control showed the highest values of the reproductive organ length, n, and p concentration. the highest ca content was obtained after the tiber's cultivation in the 80% palm trunk. research limitations: no limitations were founded. originality/value: because of the low cost, availability, and extensive cultivation area of date palm in iran and over the world, palm wastes has a great potential to be used as an eco-friendly horticultural substrate mixture to substitute coco peat in lily soilless culture.