Effective tilling promoter and effective tilling promoting method

摘要

[Problem] To provide novel technology by which effective tilling can be promoted. [Solution] Provided is an effective tilling promoter which comprises the product of a super-heated steam treatment of microbial materials, such product obtained by subjecting a mixture comprising yeast, yeast extract or yeast cell walls, phosphoric acid or a phosphoric acid compound, and potassium or a potassium compound to a super-heated steam treatment.