ABSTRACT A research about the effect weeds extract on growth of several varities of Chinese Cabbage (Brassica pekinensis L.) has been carried out since 31 December 1995 until 2 February 1996 at Tegalrandu, Srumbung, Magelang, Jawa Tengah. The soil is regosol, the PII 6,0 with an altitude of 580 metres above sea level The experiment was arranged with ran…