Green fertilizer application method for reducing chemical weight and increasing efficiency in wheat and maize rotation cycle

The invention discloses a green fertilizer application method for reducing chemical weight and increasing efficiency in wheat and maize rotation cycle, which comprises the following steps: the suitable wheat-maize rotation variety is selected; the wheat-maize rotation is collocation and the rotation is carried out; wheat and corn stalk full returning to the field is carried out during the rotationperiod. During the rotation, the number of wheat and maize fertilizing times is changed from 4-6 times to 2 times, greatly simplifying the times of fertilizing, realizing the agronomical integrationof agricultural machinery and achieving the realistic goal of freeing the labor force. The technical measures such as humic acid synergism, the whole amount of straw and the substitution of organic fertilizer, reduce the amount of nitrogen and phosphorus fertilizer, and realize the green fertilization and green control of the wheat-maize rotation cycle. The method provides an effective solution for the scientific fertiliza