1. Proportion: 1% naphthylacetic acid, 14% boric acid, 20% Zinc sulfate, 26% magnesium sulfate, 39% starch
2. Preparation method: Porphyrize all the raw materials, then mix well, separately package in glass bottles or plastic bags according to the specification of 50g.
3. Direction for use (Take Black fungus as an example): Before the formation of sporocarps, combine with water in accordance with the proportion of 1 to 1, then spray it on fungus beds or sacks. Generally, mushroom production could be increased by 15%-30%.
The solution is applicable in Black fungus, Straw mushroom, Button mushroom and Shiitake cultivation.