The willpower with the dry mass of all substrate pots by drying within a ventilated oven at sixty°C (Heraeus, Hanau, Germany) for seven times in the beginning and conclusion of lettuce cultivation allowed the calculation of the mineralized organic and natural matter throughout the experiment. This technique was applied according https://high-performance-vector-v54207.ttblogs.com/12684739/top-guidelines-of-soilless-cultivation