The invention discloses a method for realizing ecological cycle by combining planting and breeding in a sugarcane field. The method comprises the following steps: interplanting corns in the sugarcanefield at the early growth stage of sugarcane,
processing fresh
silage corns and sugarcane
tail tips into a pig feed, and preparing
biochar from withered straws; building a hog house and a chicken house beside the sugarcane field for raising pigs and chickens, wherein a cleaning waste liquid and pig
urine of the hog house and the chicken house are used for
drip irrigation of the sugarcane field, and excrement of the pigs and the chickens is used for raising
hermetia illucens; feeding the chickens with produced
hermetia illucens, after the chickens are hatched, breeding the chickens in the chicken house in a captive mode to a sugarcane elongation stage, and
stocking the chickens to the sugarcane field; and preparing the
hermetia illucens treated excrement and the
biochar into a bio-
organic fertilizer, and applying the bio-
organic fertilizer to the sugarcane field so as to provide nutritional ingredients for growth of the sugarcane and the
silage corns. By using of the method provided bythe invention, the sugarcane and the corns are planted; the pigs, chickens and
hermetia illucens are bred;
low input and high output of the sugarcane field can be achieved; and the ecological conceptof cyclic utilization is met.