ABSTRACT The research is to study the effect of the time and cocentration of Trichoderma sp on growth of chilli (Capsicum Annum). The research was carried out since Jully 30th 2002 to September 5 th 2002 at Green house of SMK Negeri 1 Temanggung. The kind of soil is latosol, pH is 6,0 and the altitude is 600 meters. The research uses factorial experiment (3 x 4) in randomized completely …