Formula and production method of watermelon nutrient soil culture substrate block

The invention discloses a formula of a watermelon nutrient soil culture substrate block, which comprises the following raw materials in parts by weight: garden soil, bamboo charcoal powder, bone meal,rotten barks, animal wastes, coconut shell powder, purified water, a microbial starter, a compound fertilizer, a mixed additive, an extract additive and protease. A production method of the watermelon nutrient soil culture substrate block comprises the steps of: S01: raw material pretreatment; S02: mixing and stirring; S03: microbial inoculation; S04: secondary mixing; and S05: fermentation stirring. In the invention, the water-retaining property and permeability of the nutrient soil culture substrate block can be effectively improved by adding the mixed additive consisting of water-retainingproperty mixed solution and permeability mixed solution, so that nutrient substances can be guaranteed to uniformly flow in the nutrient soil culture substrate block, excessive loss of nutrient substances is avoided, and wate