The invention discloses a double
cropping planting method of early-maturing potatoes and grain-feed dual-purpose corn in a
loess hilly area in eastern Gansu, and relates to the technical field of
crop planting, and the method specifically comprises the following steps: S1, a first
crop of potato cultivation technology: S11, land selection and preparation; s12, fertilization, vertical deep rotation, ridging and film mulching; s13, preparing potato seeds; S131, selecting improved seeds; s132, potato
seed treatment; s14,
sowing in a suitable period; s15, field management; s16, prevention and treatment of diseases, pests and weeds; s17, harvesting at
proper time; s2, a second-
crop corn cultivation technology: S21, variety selection; s22,
soil preparation; s23, fertilization is carried out; s24, ridging and film mulching are carried out; s25,
sowing the seeds; s26, field management; S27,
disease and
pest control; and S28, harvesting. And S29,
plastic film residue
recovery. According to the one-year-two-
cropping planting method for the early-maturing potatoes and the grain-feed dual-purpose corn in the
loess hilly area in the eastern Gansu, the utilization structure of hydrothermal resources can be optimized, soil hydrothermal
coupling is achieved, and the farmland productivity is remarkably improved.