Sprinkle Mushroom Powder When Covering The Mulch

1. The "ideal relationship" between bacterial powder and mulch
Mushroom powder is essentially a mixture of mycelium and nutrients, which is like hiring a "cleaner" for the soil - it can decompose organic matter, inhibit pathogenic bacteria, and improve the soil structure. However, after covering with mulch, the soil is in a relatively closed microenvironment, the oxygen content decreases, and the humidity increases. Spreading bacterial powder at this time is like asking a "cleaner" to work in a stuffy basement. The activity of mycelium will be greatly reduced, and the mycelium may even die due to lack of oxygen, which in turn wastes the effectiveness of the bacterial powder.

Key point: The soil has poor air permeability after being covered with mulch, and the activity of bacterial powder is easily inhibited. It is recommended to sprinkle bacterial powder first and then cover with mulch, or choose a mulch material with better air permeability.

2. The "golden window" for operational timing
If you want bacterial powder and mulch to "cooperate happily", timing is key.

Ideal operation: After soil preparation and before covering with mulch, spread the mycelium powder evenly into the soil, plow and mix, so that the mycelium is in full contact with the soil. In this way, the decomposition of bacterial powder can be used to improve the soil quality, and the mulch can be used to maintain heat and moisture, creating conditions for the growth of mycelium. If it has been covered with mulch and you want to re-spread bacterial powder, you need to uncover the edge of the mulch and cover it again after spreading. However, this will easily destroy the integrity of the mulch and increase the risk of pests and diseases invading.

Tips: If it is necessary to respread later, you can choose degradable mulch film, use a knife to cut a small opening and sprinkle it in to reduce damage to the mulch film.

3. "Potential Risks" of Improper Matching
Blind mixing may cause two problems. First, the organic matter in the bacterial powder may become a "culture medium" for pathogenic bacteria. If the mulch film is not tightly sealed, it will accelerate the spread of the disease. Second, the bacterial powder will release heat during the decomposition process. If the temperature under the mulch film is too high, it may "scald" the plant roots, especially in the seedling stage. In addition, some bacterial powders have high nitrogen content, which, combined with the high temperature and high humidity environment after mulching, may lead to the accumulation of ammonia and damage plant leaves.

Guide to avoid pits: Test a small area before use to observe the plant response; choose high-temperature resistant strains (such as Bacillus subtilis); use a well-ventilated mulch type (such as black and white two-color film).