TSB thatâ s mean â Grows very Goodâ is natural material thatâ s very needed the plant for growth and produce very good. TSB support finaly result or oharvest like leaf, roots, and fruit because thatâ s contain organic material like : magnesium, Kalsium, Kalium, Phospor, barium with balance and has been tested for use. So thatâ s can reduce the chemistry use. Go fast loos of soil and reduce the grass.