The topdressing of greenhouse cucumbers during the high-yield period is the material basis for prolonging the high-yield period and winning high yields. This time dressing can not be stereotyped, it should be based on the growth trend. When the quagmire grows luxuriantly and the leaf area is large, it is generally necessary to chase or not to chase nitrogenous fertilizers. Phosphorus and potassium fertilizers should be used as the main components; when the fruit is seen to be small, fine, and dark green, it indicates excessive phosphorus. Insufficient nitrogen fertilizer should be dominated by nitrogen fertilizer. When yellow leaves are found on the leaves, there are small yellow spots on the leaves, indicating that potassium is insufficient and potassium can be added in time. Topdressing nitrogenous fertilizers is mainly urea and ammonium nitrate. Ammonium sulfate, ammonium chloride, and ammonium bicarbonate cannot be used. Since ammonium sulfate is a physiologically acidic fertilizer, ammonium sulfate will dissociate into ammonia and sulfate in soil moisture when applied in large amounts. When ammonia is absorbed by guarana, sulfuric acid and hydrated synthetic sulfuric acid will remain, which will lead to soil acidification. , Affecting the yield of vegetables in the future. In addition to accelerating soil acidification and consolidation, chlorine chloride is harmful to cucumbers, and must be strictly prohibited. Ammonium bicarbonate is a weak acid and weak alkali salt and is very unstable. Especially, cucumbers grown in greenhouses grow in a closed high-temperature environment. Ammonium bicarbonate soon decomposes to produce ammonia when it is applied to soil. When guarunes cannot be fully absorbed in time, excess The ammonia will gasify and escape into the shed. When the ammonia gas meets the water droplets on the leaf surface, it will produce ammonia water. The lower part of the light will be yellowed. When the ammonia is severe, it will become blue and dry and it will seriously affect the yield and even the harvest. Diammonium phosphate is mainly phosphate fertilizer, but also contains a certain amount of nitrogen (about 17%), but phosphorus diammonium phosphate applied to the soil is poor mobility, applied in the ditch is difficult to move with the water, so the effect of top dressing is not good. In order to improve the application effect, diammonium phosphate must be soaked in water for 24 hours and then topdressing with leachate, which is more troublesome. Of course, this problem can be solved by combining automatic underground ooze irrigation with top-dressing irrigation. It can transfer the available phosphorus dissolved in the water directly into the root soil for absorption and utilization by guarana. This is an ideal top dressing method. Potassium sulfate in potash can be used as topdressing, but it is not suitable to apply more to prevent soil acidification. Superphosphate is a phosphate fertilizer and is not suitable for topdressing due to poor mobility of available phosphorus. Potassium dihydrogen phosphate is a quick-acting phosphorus and potassium compound fertilizer with good solubility and can be used as top dressing. Potassium chloride cannot be topdressed. The number of topdressing should be based on the principle of less and more ground, that is, the amount of topdressing can not be much, and it is generally appropriate to chase 40–50g per ridge (30 strains) each time. If you feel that the amount of fertilizer is insufficient, you can increase the frequency of topdressing. This will not produce fertilizer damage, but also ensure high yields. Cultivated cucumbers in greenhouses are not allowed to be shaved and dried and applied dryly. They must be applied along with gutters. In the high-yield period, every water must be fat, and the prolongation of the high-yield period should be maintained. Foliage topdressing is an economical and effective topdressing method. Usually in the middle and later stages of production, it is found that when the leaves are thin and yellow, the nitrogen fertilizer is chased, and the urea 50g is used to water 15kg. After spraying and dissolving, the foliar is sprayed on the leaves, once every 5 to 7 days, for 3 to 5 consecutive times, it can be received. effective. When it was found that the melons were severe, the melon leaves were hypertrophy, and the melons were misshapen, the potassium dihydrogen phosphate 50g was used to stir and dissolve the water at 15kg and sprayed on the leaves for 3 to 5 days. It also received certain effects. In the later period of production, the roots are senescent. At the same time, 50 grams of water and 15 kg of potassium dihydrogen phosphate can be used together. Then add half-bottles to the spray and stir the sprayed leaves after dissolution to replace the top dressing, increase disease resistance and delay aging. The role of late high yield. Here we must explain that, under normal circumstances, pesticides that can prevent and cure diseases cannot be added to fertilizers at the same time and spray them. Otherwise, they are not caused by phytotoxicity or drug failure. When spraying is needed at the same time, it should be sprayed in the morning and sprayed in the afternoon to prevent phytotoxicity. About all kinds of compound fertilizers, compound fertilizers, organic fertilizers, fertilizing fertilizers, and various foliar fertilizers that are currently on the market are best used after comparative tests.
Shikonin is a kind of organic substance, which is insoluble in water, soluble in ethanol, organic solvent and vegetable oil. It is easy to dissolve in alkali water and precipitate when meeting acid. It can be used in the treatment of acute icteric or non icteric hepatitis, chronic hepatitis and verruca plana. It is also effective for cirrhosis (ascites) and verruca vulgaris. It has anti-cancer, anti-inflammatory, antibacterial and other effects. It is used in the treatment of acute and chronic hepatitis and cirrhosis (ascites). The Department of Dermatology and Hepatology is used for the treatment of verruca plana and psoriasis, local application for the treatment of burns and promoting wound healing. Eye drops are effective in the treatment of herpes simplex keratitis.
Product Name: Shikonin
Other Name : Shikonin Powder
Specification: 10%/30%/ 98%
Appearance: Dark Red Purple Powder
Form: Powder
Storage: Store in cool and dry places, keep away from strong light.
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1.Shikonin extract shikonin with the function of anti-tumor effects;
2.Shikonin extract shikonin acts the main role of the cardiovascular system;
3.Shikonin extract shikonin with acne and anti-inflammatory cosmetic effects;
4.Shikonin extract shikonin is mainly used for hepatitis, dermatitis and baby, women vaginitis, cervicitis, and other drugs
5.Shikonin has antimicrobial, anticancer and anti-inflammatory effect.
6.Shikonin is used in treating chronic hepatitis, oxyhepatitis and cirrhosis.
7.Shikonin is used in treating verruca plana and psoriasis.
8.Shikonin is also known to have wound healing, antitumor, and antithrombotic properties.
9.Shikonin works as colorant in cosmetic and food products.
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