Téboulba , Tunisia (August 20, 2017) – The producer Nourddine Belkahla applied the ferti-activator Sanbio EPSOMIT on zucchini 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 1 t/ha, resp. +25% more zucchini fruits.