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Key Technical Points for the Early-Stage Operation of Edible Mushroom Growing Substrate

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Preparing a good edible mushroom growing substrate is very important, as it directly affects the growth of the edible mushrooms and the grower's returns. Here I will use the preparation of growing substrate with Jinbaobei fermentation agent as an example to introduce the key operating points. 1. Material preparation: Prepare Jinbaobei edible mushroom substrate fermentation aid at 0.1% of the substrate weight (that is, one part per thousand; if discarded substrate is being reused, it may be added at 0.2%); pre-soak or rinse the crushed or cut main material in advance to pre-wet it, and adjust the moisture to 60-70% and the pH to about 8. If the moisture is too low, it is not conducive to the rapid reproduction of functional microorganisms,

Preparing a good edible mushroom growing substrate is very important, as it directly affects the growth of the edible mushrooms and the grower's returns. Here I will use the preparation of growing substrate with Jinbaobei fermentation agent as an example to introduce the key operating points.

1. Material preparation: Prepare Jinbaobei edible mushroom substrate fermentation aid at 0.1% of the substrate weight (that is, one part per thousand; if discarded substrate is being reused, it may be added at 0.2%); pre-soak or rinse the crushed or cut main material in advance to pre-wet it, and adjust the moisture to 60-70% and the pH to about 8. If the moisture is too low, it is not conducive to the rapid reproduction of functional microorganisms, and the fermentation speed is slow; if the moisture is too high, not only will the temperature rise slowly, but poor aeration may also create localized anaerobic conditions, causing "spoilage bacteria" to multiply and produce a foul odor. To judge whether the moisture is suitable: tightly squeeze a handful of the material in your hand; it is ready if you see a water mark but no water drips out.

2. Mixing materials: Use fresh rice bran (note: "rice bran" is not "unhulled rice bran"; rice bran has good nutritional value and air permeability, while stale rice bran or unhulled rice bran has poorer nutrition and is also unfavorable; if rice bran is unavailable, wheat bran or cornmeal can be used as a substitute) to dilute the fermentation aid (add 5 kg of rice bran per 1 kg of Jinbaobei fermentation aid), then mix the diluted Jinbaobei fermentation aid evenly with the pre-wetted bran, cake fertilizer, manure and other auxiliary materials, and then evenly mix it into the main material.

3. Building the pile: Stir the substrate raw materials evenly, build the pile in the conventional way, use pointed rods about 10 cm in diameter to evenly punch holes through the pile for aeration, and cover it with breathable coverings such as burlap sacks and straw curtains to keep it warm and moist.

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