as demonstrated in table 3, with the increase of composted sludge, the dry weight of crop increased firstly and then declined, which was in accordance with the variation trend of height. meanwhile, the dry weights in program II and program VI were respectively slightly higher and far lower than that of control program I. In addition, when the dry weight of composted sludge was 1% the dry weights of corn and wheat were respectively 1.14 and 1.03 times higher than those of control program I. however, in case dry weight of composted sludge was 50% the dry weights of corn and wheat were merely 0.50 and 0.13 times higher than those in control program I respectively.