The invention belongs to the field of
edible mushroom residue recycling, and particularly relates to an okra
seedling growing substrate based on crab
mushroom residues and a preparation method thereof. The substrate is prepared from, by weight, 40-50 parts of preprocessed crab
mushroom residues, 20-30 parts of vegetable garden soil, 15-20 parts of dried cattle
chip, 5-10 parts of
vermiculite, 5-10 parts of turfy soil and 0.1-0.15 part of
urea. The preparation method comprises the steps that the components are mixed and stirred to be uniform, and the
water content is controlled to be smaller than or equal to 12%. The substrate has the advantages that the components are balanced and reasonable, nutrients are enriched, the requirement for various nutrients needed by okra
seedling stage growth can be met, the okra seed
bud ratio is increased, and the
seedling growth is good, the
growth promoting capability is obvious, the
transplanting success rate is larger than 98%, the
raw material cost is low, operation is easy, and the wide large-scale application prospect is achieved.