(1) CK1 (soil not inoculated with any microbe), (2) CK2 (soil inoculated with 1.5 g of R. solani Q1 kg−1 soil), (3) OF (soil inoculated with 1.5 g of R. solani Q1 kg−1 soil and amended with 1% OF), (4) N (soil inoculated with 1.5 g of R. solani Q1 kg−1 soil and 107 cells of N43 g−1 soil) and (5) BIO (soil inoculated with 1.5 g of R. solani Q1 kg−1 soil and 1% BIO). Four days after inoculation, pre-germinated cucumber seeds were planted in the soil. Twenty days after inoculation, the cucumber seedlings were harvested. Diseased plants and the dry weights and lengths of shoots of surviving plants were evaluated