Soil moisture conservation type bio-organic fertilizer and preparation method thereof

The invention discloses a soil moisture conservation type bio-organic fertilizer and a preparation method thereof, and belongs to the technical field of bio-organic fertilizers. Through two-step fermentation, efficient fermentation of the mushroom dregs is achieved, on one hand, rich organic nutrient substances are provided, and on the other hand, water absorption and retention are facilitated. Components such as humic acid and auxiliary nutrient substances are added, so that various abundant nutrient elements are provided for the soil. Secondly, a water-retaining agent component is prepared and added, so that an excellent water and soil conservation effect is achieved. The zeolite is added, and the porous structure of the zeolite enables the zeolite to adsorb and maintain moisture and nutrients, so that the zeolite is prevented from losing along with the moisture. Therefore, the water-retaining property of the soil can be improved, and the plants can better absorb water and nutrients, so that the fertility o