Téboulba , Tunisia (August 20, 2017) – The producer Nourddine Belkahla applied the ferti-activator Sanbio EPSOMIT on eggplant in greenhouse production in the season 2017. He made two foliar application with a single dose of 1 kg Sanbio EPSOMIT in 500 liters of water. By that he increased the yield at 3.1 t/ha, resp. +31.6% more eggplant fruits.