Soil improvement method and equipment for pepper planting

The invention discloses a pepper planting soil improvement method, which belongs to the technical field of pepper planting, and comprises the following steps: step 1, deep ploughing and soil improvement: on the basis of an original planting hole, performing annular furrowing on the outer edge of the planting hole, screening out stones dug out from the furrowing, mixing fermented chicken manure, weeds, bacillus subtilis and straws into the soil during backfilling, and then backfilling, fermented chicken manure and bacillus subtilis are mixed in an annular groove outside a planting pit of each plant; step 2, interplanting: interplanting leguminous crops between rows in the pepper field, wherein the row spacing of the leguminous crops is 80-90cm; step 3, fertilization: ditching at the projection edge of a tree crown, and applying fermented chicken manure, ammonium bicarbonate, calcium superphosphate and plant ash into annular ditches of each plant; 4, topdressing, wherein 5-8 holes with the diameter of 20-25 cm