Soil acidity regulating agent as well as preparation method and application thereof

The invention relates to the technical field of soil improvement, in particular to a soil acidity adjusting agent and a preparation method and application thereof.The preparation method comprises the following steps that soaking is conducted, specifically, stems of liana bitter ropes are cut into sections and then soaked in cold water, and the bitter rope sections are immersed in the cold water; fermenting: sealing the soaking solution soaked with the bitter rope sections, and fermenting for 10-15 days; and diluting: diluting the fermentation liquor obtained by fermentation, and using the diluted fermentation liquor as a soil acid regulating agent. The acid regulating agent disclosed by the invention is simple and easy to implement, enables irrigation water for blueberry planting to be safer, green and environment-friendly, and is a degradable, residue-free and non-corrosive pure natural acid regulating agent. 本发明涉及土壤改良技术领域，尤其涉及一种土壤调酸剂及其制备方法和应用，包括以下步骤：浸泡：将藤本植物苦绳的茎切成段后，采用冷水浸泡，冷水没过苦绳段；发酵：将泡有苦绳段的浸泡液密封并发酵10～15天；稀