The perseverance in the dry mass of all substrate pots by drying inside of a ventilated oven at 60°C (Heraeus, Hanau, Germany) for seven times at first and finish of lettuce cultivation authorized the calculation of the mineralized organic and natural issue through the experiment. This process was applied in https://52inchceilingfan07384.weblogco.com/33171325/the-2-minute-rule-for-plant-factory