The perseverance in the dry mass of all substrate pots by drying in a very ventilated oven at sixty°C (Heraeus, Hanau, Germany) for 7 days at the beginning and close of lettuce cultivation allowed the calculation on the mineralized organic and natural matter over the experiment. This process was applied https://steelwatchband54296.wssblogs.com/33003538/details-fiction-and-greenhouse-accessories