The perseverance of the dry mass of all substrate pots by drying inside of a ventilated oven at 60°C (Heraeus, Hanau, Germany) for seven times in the beginning and close of lettuce cultivation authorized the calculation of the mineralized organic and natural matter in the experiment. This technique was applied https://ceilingfanwithremotecontr09752.bloguetechno.com/not-known-facts-about-greenhouse-68158926