The invention discloses a cultivation method for increasing the yield of
sweet sorghum in high
saline-
alkali soil. The cultivation method comprises the following steps: in the mid month of March, performing broad
irrigation on the
saline-
alkali soil once, wherein the
irrigation amount of each mu of soil is 60-100m<3>; airing for 1-1.5 months till the
soil surface is dried and people can stand on the soil; applying 1000-1500kg of miscellaneous
manure or 50-55kg of a composite
fertilizer to each mu of the soil; performing rotary
tillage once to twice so as to mix up the soil and the
fertilizer; pressing by using a rake to preserve soil
moisture, and flattening the land; treating seeds of
sweet sorghum by using a seed
coating before being seeded, wherein the seed
coating is prepared from actinomycin,
bacillus subtilis, azospirillum brasilense,
fulvic acid, spicy
powder, heteroauxin, microelements, a
sodium alpha-naphthyl acetate
growth regulator, an EDTA-2Na chelating agent,
humic acid, turf, a bactericide and an insecticide; when mixing is implemented for seed dressing, blending the insecticide with the seeds firstly, stacking and tightly covering for 3-6 hours, further introducing the bactericide, and immediately seeding after the seed dressing is implemented.