Composition for promoting growth of stevia rebaudiana, and preparation method for composition
A composition and technology of stevia, applied in fertilization methods, fertilizer mixtures, fertilization devices, etc., can solve the problems of no unified growth regulator, achieve the effect of improving nutrient supply, high utilization rate, and improving micro-ecological environment
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Embodiment 1
[0042] Embodiment 1, the preparation of special-purpose growth regulator of Stevia rebaudiana
[0043] method one:
[0044] 1. Preparation of fermentation products
[0045] 1) Cultivate
[0046] Bacillus sp. Y-25CGMCC 4092 was inoculated into seed tanks and cultured for 12 hours according to the conventional method, and then inoculated into fermentors for 37°C culture (the medium was LB medium, the formula was peptone 10g / L, yeast powder 5g / L, sodium chloride 10g / L.) After 24 hours, the culture solution obtained had a bacterial concentration of 2×10 8 cfu / mL, spare;
[0047] 2) fermentation
[0048] Add lignite (the organic matter content of lignite is 78% (mass percentage), humic acid content is 67% (mass percentage), originating from the Huolinhe area of Inner Mongolia Autonomous Region), wheat bran, straw, and water in proportion to fermentation In the tank, at the same time, the bacillus culture solution prepared above was inserted and fully mixed, and aerobically ...
Embodiment 2
[0069] Embodiment 2, the application of special-purpose growth regulator of Stevia rebaudiana
[0070] 1. Application of growth regulator 1
[0071] Take by weighing 1kg the special-purpose growth regulator 1 of stevia rebaudiana that obtains by embodiment 1, be dissolved in 1000L clear water, fully stir and mix, obtain foliage fertilizer dilution, the average per mu of stevia special-purpose biological growth regulator dilution is 30L .
[0072] When stevia rebaudiana (Stevia rebaudiana Bertoni, from Shenyang Yihua Ecological Park Development Co., Ltd.) was transplanted to the field for about one month, it was sprayed once every 7 days and sprayed twice continuously; During two months, spray 1 time every 7 days and spray 2 times in a row; when about 15 days before stevia flowering, spray 1 time every 7 days and spray 2 times in a row; For the middle and upper leaves of Chrysanthemum chrysanthemum, the main method is to spray on the back of the leaves;
[0073] The treatmen...
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