ABSTRACT The research of the effect of critical phase and level of leaf injury to yield and compensation capability of noy bean (Glycine max (1) Kerr) have be done at Duspeh village. Patrobingeon, Mitrict of Sort Magelang, region of Magelang, eentest Java fros October 1991 until January 1992. 1992. The search was done at open field, the soil type in latosol, pil of 11 6.5 1tra altitu…