Wheat antifreeze high yield cultivation

Wheat anti-freezing high-yielding cultivation techniques are strain techniques for preventing and remedying wheat freeze injury. The types of frost damage in wheat production in China mainly include freezing injury in winter, freezing injury in early spring (cold spring), and low-temperature chilling injury. The techniques for preventing freezing injury include the use of appropriate winter and spring varieties, proper sowing and improved sowing quality, and cultivation of strong seedlings. The strain-remediation technology for remediating wheat freeze injury is followed by nitrogen topdressing and watering. Suitable for all winter wheat areas.

Herbal Medicine

Plant extraction process

1. Select plants/herbs. No more than ancient prescriptions, prescriptions, folk herbs to find. At present, common and uncommon herbs have been studied. At present, it is mostly to increase the amount of medicinal materials to extract and separate components with low content, or to find medicinal plants that have never been studied from miao medicine, Tibetan medicine, Mongolian medicine, Africa, Latin America and other places.


2. The extraction. Solvent petroleum ether, n-hexane, cyclohexane, benzene, chloroform, ethyl acetate, n-butanol, acetone, ethanol, methanol, water (low polarity → high polarity). Daily medicine decoction effective, water and ethanol and other solvents with large polarity, such as artemisinin boiling ineffective extraction with petroleum ether and other solvents with small polarity. Common medicinal materials water/alcohol/ether to go through, separation and identification of more compounds.

3. The separation. This is the most important work. In the solution extracted from the second step, there are dozens of compounds, usually by column chromatography, which is often referred to as the column flushing. It's a lot of work, it's boring, it's low tech. A master's student might do this every day for two years. The column for separating compounds, as shown below, is as large as 2 meters high and as small as 10 centimeters. Change the solvent condition of mobile phase, change the material of column, different conditions and different separation principles of column repeatedly punching, can be separated from the monomer compound.


Herbal Medicine,Ginger Extract Powder,Hawthorn Berry Extract,Lycium Berry Fruit Extract

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