ABSTRACT An experiment of the effect of seedling age and feeding frequency Super Bionik on yield of lettuce (Lactuca sativa, L), had been done since July 16'? until October 20° 2003, at Jumo village, Jumo District, Temanggung Regency, latosol soil, pH 6,5 with an altitude 680 m. The experiment is factorial (3 X 4) with completely randomized design consisted of threa repl…