the sludge organic complex fertilizer (Socf) for sugarcane, which contains 14.3% of itrogen, 4% of phosphoms oxide and 5% of potassium oxide. is made from municipal sludge after aerobic andzanaerobic fermentation by adding nitrogen, phosphoms and potassium properly Field experiinents show that: (1)Various fertilizers have a very weak influence onthe emergence rate, effective stem and sugar rate of sugarcane; (2)The output of sugarcane varies with the amount of SOCF applied infield and it is optiIllUm to apply 2 400kg ofthe fertilizer per hectare (3) 1he fertilizer effect of SOCF is superior to that of general complex fertilizer sold in nlarket and mixed fertilizer of urea, calcium-magnesium phosphate fertilizer and potassium chlonde when 2400kg of SOCF is used per hectare in field