Method for producing selenium-rich dendrobium huoshanense by utilizing organic selenium biological agent
A technology of Dendrobium huoshanensis and biological preparation is applied in the field of producing selenium-enriched dendrobium, can solve the problems of affecting the growth of dendrobium huoshan, difficult to cultivate artificially, and achieves the effects of good disease prevention, rich selenium content, and reduced production cost
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Embodiment l
[0023] Embodiment 1: the preparation of organic selenium biological preparation
[0024] Self-made organic selenium conversion medium: 5 g sodium selenite, 30 g white sugar, 3 g calcium dihydrogen phosphate, 6 g dipotassium hydrogen phosphate, 0.5 g magnesium sulfate, 0.05 g calcium chloride, 1.25 g sodium citrate , 2.25 g of ammonium sulfate, 1.85 g of urea, 15 g / L of yeast powder, and 7.5 g / L of peptone were dissolved in water and adjusted to 1 L, and the pH value was adjusted to 7.0. After the medium was sterilized at 121 degrees Celsius for 30 minutes, the Add 5-7% EM active probiotics, mix well and carry out anaerobic fermentation in a sealed container at a fermentation temperature of 20-25°C for 7 days. After opening the cover, it has a sour and fragrant smell, and it is made into an organic selenium biological preparation.
Embodiment 2
[0025] Embodiment 2: the production of selenium-rich Dendrobium Huoshanense.
[0026] The organic selenium biological agent prepared in Example 1 was diluted with water to 100 times of the original volume. At this time, the selenium content is about 27mg / L. When the temperature is lower than 20 degrees Celsius at 3 o'clock in the afternoon from April to May and September to October, use a sprayer to spray the diluted organic selenium biological agent on the leaves and culture substrate of Dendrobium huoshanense, and do not spray on rainy days. The spray volume is 50mL / m 2 , Spray once every 5 days, and spray 6 times in total.
[0027] After being picked, it is made into finished products through the conventional production process of Dendrobium Huoshanense. The Dendrobium Huoshanense prepared by the process of the present invention is compared with the common Dendrobium Huoshanense of the same species (that is, not sprayed with an organic selenium biological agent) as a con...
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