The invention discloses a semi-
solid non-
tillage dry direct planting method for multi-
cropping type oilseed rape. The semi-
solid non-
tillage dry direct planting method comprises the following steps of S1, keeping water
layers, of which the depths are 1cm-5cm, in ditches before previous crops are harvested, and paving and spreading straws after the harvesting of the previous crops on
ditch surfaces to form rhizospheric
layers of oilseed rape seeds; S2, applying base
fertilizer on the
ditch surfaces on which the straws are paved and spread, and cleaning the ditches; S3, applying the oilseed rape seeds on the
ditch surfaces, mixing sun-dried oilseed rape seeds with semi-
solid biomass materials before seeding, wherein the mixed
mass ratio between the oilseed rape seeds and the semi-solid
biomass materials is (3-4):(1500-2500), and the
water content of the semi-solid
biomass materials is 40%-80%; S4, continuously keeping a dry state of the ditch surfaces for 3-7 days without irrigating water after the seeding, and forming semi-solid
layers,
straw base
fertilizer layers and soil layers on the ditch surfaces from top to bottom. According to the semi-solid non-
tillage dry direct planting method disclosed by the invention, no tillage and no burning on the straws of winter crops and no
irrigation of horse-racing water are realized, and the ecological benefit is obvious; the working
energy consumption is reduced,
pesticide is not used for cleaning stubbles,
haze is reduced, and
irrigation water is reduced.