
ABSTRACT The research to know the effect of concentration of Bio fert-Plus on yield of several plant varieties (Cucumis sativus L.), had been carried out since February, 21 1999 until April 1999, at Sukodadi village, Bandongan district, Magelang regency, central Java Province. The soil type is lathosol with pH 6,5 and altitude 520 meters. The method is factorial experiment (3x4) with randomizeā¦