The invention provides a division propagation method suitable for
plateau lavenders, and belongs to the technical field of
lavender propagation. The propagation method comprises the following steps: applying a base
fertilizer to a deep, smooth and
saline-alkali-free soil block, ploughing, ridging, furrowing and carrying out
soil preparation; planting healthy and
disease-free
lavender plants in furrows in a division manner, watering, topdressing,
pruning, irrigating, weeding and carrying out
disease field management; after the lavenders enter a full blooming period, harvesting the lavenders; and managing the lavenders before
overwintering in the middle ten days and the last ten days of the November. According to the division propagation method, soil permeability is improved through ridgingand furrowing, growth and development of a
root system are promoted, meanwhile, drainage and
irrigation are facilitated, topdressing and
irrigation are timely carried out to preserve soil
moisture andincrease temperature,
germination and new shoots of lavenders in the coming year are promoted to increase the flowering rate through multiple
pruning, meanwhile, robust growth of the lavenders is promoted through long illumination time and strong
sunlight in the
plateau area, and the division propagation
survival rate is improved. Moreover, seedlings obtained by the method disclosed by the invention bloom rapidly, plants grow robustly, flower shapes are full, and the yield is high.