The invention relates to a management method of ratoon sugarcanes and belongs to the technical field of
crop management. According to the management method, stubble shoveling,
fertilizer application, solution spraying and film lamination steps are finished in sequence through utilizing a stubble shoveling and
ridge breaking
machine; the management method specifically comprises the following steps: setting the position of a bottom cutter of the stubble shoveling and
ridge breaking
machine to be 5cm-8cm higher than a
ridge top; then shoveling off sugarcanes higher than the bottom cutter and remaining sugarcane piles to be 7cm-10cm, so as to increase the air permeability of soil and reduce diseases and insects; applying fertilizers after shoveling stubbles, and applying 748kg / ha-752kg / ha of single superphosphate, 297kg / ha-301kg / ha of
urea and 298kg / ha-302kg / ha of
potassium sulfate; meanwhile, applying 75kg / ha-90kg / ha of bisultap; after applying the fertilizers, spraying an
atrazine water solution; and finally, covering a mulching film. According to the management method provided by the invention, the air permeability of the soil is easy to improve and the
oxygen content of the soil is improved; the emergence rate and the tillering rate are improved; and meanwhile, the occurrence of
plant diseases and
insect pests can also be reduced and the yield of the sugarcanes is finally improved.