Plant extracts are based on plants as raw materials. According to the needs of the use of the final product extracted, through a physical and chemical extraction and separation process, one or more effective ingredients in the plant are obtained and concentrated, without changing the effective ingredients. The product formed by the structure. Herbs Extract,Plant Extract,Functional Additives,Traditional Chinese Medicine PYSON Co. ,Ltd. , https://www.pysonbio.com
The phytohormones that are used for fat-tolerant tomato shedding are mainly 2,4-D and anti-dropping hormone. 2,4-D is commonly used in dip flower processing, and its use concentration is preferably 15-20 mg/kg. The method is to immerse the flowers of the early flowering period in the liquid. Generally one flower only dips the medicine once; it cannot be repeated. Immersion treatment works best on the day of tomato flowering. When dipping with 2,4-D, care must be taken to avoid contact between the liquid and young leaves and to prevent phytotoxicity. Since the 2,4-D dipping process is laborious, it consumes a large amount of labor, so it is not suitable for use in a large area, and it is only suitable for use in a home garden.
Anti-drugs will not produce phytotoxicity within a certain concentration range, so spray treatment can be adopted to save labor and labor. Concentration: When the temperature is 15 °C ~ 20 °C, 30 ~ 40 mg / kg is appropriate; when the temperature is 20 ~ 30 °C, with 10 ~ 15 mg / kg is appropriate. The concentration of the anti-dropping flower can not be too high; otherwise it will cause phytotoxicity. Generally, it is better to spray when each flower spike has 3 to 4 flowers in full bloom. The method is to use a small hand-held sprayer to spray the flowers, and each flower ear is usually sprayed only once. If there are more flowers on a flower spike, you can spray the flowers later on. Different plants and different spikes in the same field can be sprayed once every 3 to 5 days after flowering. The sprayed flowers should not be re-sprayed when the flowers are wet.
Practice has proved that after treatment with 2,4-D and anti-arsin, the spring tomato can be cultivated as early as 10 ~ 15 æˆç†Ÿ; early production can increase 2 ~ 3 times, the total production weight is also significantly improved. Attention should be paid to the management of fertilizer and water, which is to ensure efficient conditions. If nutrients are insufficient, it will be easy to produce stale fruit and reduce the effectiveness of the squeeze.
1. According to the content of active ingredients, it can be divided into three types: effective monomer extract, standard extract and ratio extract;
2. Divided into glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc. according to ingredients;
3. According to the product form, it can be divided into vegetable oil, extract, powder, lens, etc.
4. According to the purpose, plant extracts can be divided into natural pigment products, traditional Chinese medicine extract products, extract products and concentrated products.
There are several classifications of some of the best-selling plant extracts in the world. For example, Rhodiola, Ginkgo biloba, Ginseng extracts are used in the field of brain strengthening, nourishment, and prevention and treatment of Alzheimer's; polypeptide extracts of green tea, Citrus aurantium, apple, and bitter gourd Used in weight loss, lowering blood sugar and preventing diabetes; Paclitaxel, tea polyphenols, theanine, bioflavonoids, such as lycopene, anthocyanins, etc. are used in natural anti-cancer fields; licorice, garlic, astragalus, soybean extract Used in the field of human immune system.
In the adverse environmental conditions of low temperature, rain, and lack of sunshine in spring, tomatoes will suffer a large number of flowering and fruit falling, which will restrict the improvement of tomato production. Appropriate application of phytohormones can not only effectively prevent the abnormal shedding of tomatoes, increase the production of early production and total production, but also improve the quality and early maturation, which can increase the economic benefits of planting tomatoes.