Taking secondary vaccination measures is conducive to increasing the yield of straw mushrooms. The growth rate of the mushroom mycelium is too fast, it is easy to age, resulting in weakened viability, and can not effectively use the nutrients in the culture material to continue to produce mushrooms. After the first mushroom is harvested, the surface of the mushroom is loosened and wetted with lime water, and the pH of the culture material is adjusted to 8~9; then the strain is spread on the surface, and a thin layer of fermented culture material is covered after sowing. . After harvesting the first to second mushroom, the material block can be turned over, the bottom culture material is turned to the surface layer, and 1% lime water is sprayed to adjust the pH. Then, the inoculation is carried out twice on the surface, and the inoculum is 2% to 3%, which generally increases the yield by about 30%.
Specific practice of adjusting pH: Spray 3% lime water to the culture material, not only to replenish water, but also to make the culture material alkaline; or to spray 0.1% urea and wheat bran water to the culture material (100 kg water plus 10 kg) Wheat bran, filter after cooking, take 50 kg of filtrate and add 50 kg of water.) Urea dosage is 0.1%~0.2%, the dosage should not be too much, otherwise it will easily produce coprinus; or use dry manure and human urine. The dried cow dung is broken, 40% human urine is added, mixed, and piled up for 1 day before use. After each mushroom is taken, it is applied to the surface. If some chicken and duck manure are added, the effect will be better.
The implementation of soil-covered grass cover soil can improve the moisturizing performance of the culture material and adapt to temperature changes, make the mushroom body hypertrophy, reduce the dead mushroom, and increase the yield by more than 20%. The soil covering material can be used for vegetable garden soil (under the surface of 8~10 cm), and the thickness of the covering soil is generally 2 cm.
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Vitamin A is a fat-soluble vitamin, an organic compound whose chemical formula is C20H30O. It is stable to heat, acid, and alkali, and is easily oxidized. Ultraviolet rays can promote its oxidative damage. Vitamin A includes A1 and A2, and A1 is retinol. Vitamin A2 is 3-dehydroretinol, and its physiological activity is 40% of that of vitamin A1. [1]
Vitamin A has a variety of physiological functions such as promoting growth, reproduction, maintaining normal secretion of bones, epithelial tissue, vision and mucosal epithelium, and vitamin A and its analogs have the effect of preventing precancerous lesions. Deficiency manifests as growth retardation, impaired dark adaptation and night blindness. Dry eye disease occurs due to dryness, desquamation, hyperkeratosis, and decreased secretion of lacrimal glands of epidermal and mucosal epithelial cells. In severe cases, corneal softening, perforation and blindness occur. Respiratory epithelial cells become keratinized and lose their cilia, making them less resistant to infection. The recommended intake of vitamin A (RNI) for adults in my country is 800 μg retinol activity equivalent per day for men and 700 μg retinol activity equivalent per day for women. [2] Foods rich in vitamin A include liver, egg yolk, and milk powder of poultry and livestock. Carotene can be converted into vitamin A in the mucosa of the small intestine, red-yellow and dark green vegetables. Fruits contain more carotene.
Vitamins,Vitamin Powder,Vitamin K,Vitamin A
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