Greenhouse vegetables have high requirements for fertilization. If fertilization is improper, it will not only cause soil compaction, but also cause vegetable fertilizer damage, and it will also affect the nitrate and nitrite content exceeding the standard. These two substances are extremely harmful to human health. Therefore, in the greenhouse vegetable production, we must be careful to apply fertilizer and scientific fertilization. More organic fertilizers and less fertilization of organic fertilizers have higher nutrient content and longer lasting effect. After application, they can not only improve the soil of vegetable fields, but also provide various nutrients for vegetables. At least 3 cubic meters of organic fertilizer should be applied per mu of greenhouse. Controlling the application of chemical nitrogen fertilizer, increasing the application of phosphorus and potassium fertilizers Although nitrogen fertilizer is an indispensable fertilizer in greenhouse vegetable production, it cannot be applied excessively. Phosphorus and potassium, as quality elements, can participate in all biochemical reactions in vegetables, and can activate more than 60 kinds of enzymes in vegetables, so that the stress resistance of vegetables is obviously enhanced, so it should be applied in large quantities. In addition, in the greenhouse vegetable production management, the number and time of sheds and window opening should be increased appropriately, and the light intensity should be increased to minimize the nitrate content in vegetables. The chemical nitrogen fertilizers that need to be banned or limitedly applied mainly include: the application of nitrate nitrogen such as ammonium nitrate, potassium nitrate and nitrate-containing compound fertilizer is prohibited, and the nitrate accumulation in vegetables is reduced. It is not suitable to apply chloride ions such as potassium chloride or ammonium chloride to reduce the starch content in vegetables, so that the quality is deteriorated, the yield is reduced, and the residual soil in the soil easily causes decalcification of the soil and causes compaction. Limited application of magnesium sulfate and ammonium sulfate fertilizers Because the sulfate ions in the fertilizer are not easily absorbed by vegetables and remain in the soil, which is harmful to the growth of vegetables. In addition, a limited amount of ammonium bicarbonate is applied, which is easily caused by ammonia volatilization. Implement soil testing formula balanced fertilization to promote vegetable-specific compound fertilizer. The special fertilizer is determined according to the fertilizer characteristics of different vegetables and the soil fertilizer supply status. The nutrients are more complete, the nutrition is more scientific, the formula is more reasonable, and the pertinence is stronger. After application, the vegetable yield can be significantly improved and the vegetable quality can be improved. Promote the promotion of zinc, molybdenum, calcium, magnesium and other new fertilizers. These nutrients can actively improve the quality of vegetables, which is also essential for vegetable growth. Vigorously promote bio-fertilizers, especially to promote bio-organic compound fertilizers. The biological fertilizer contains microbial activated bacteria, which is a "four-in-one" fertilizer composed of organic fertilizer, inorganic fertilizer, bacterial fertilizer and synergist. It realizes the scientific cooperation of various fertilizers, complements each other's advantages, and benefits each other. One of the best fertilizer varieties for balanced fertilization of greenhouse vegetables. The application of bio-organic compound fertilizer can improve soil, increase soil fertility, and create a good growth environment for greenhouse vegetables. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone 1.Hawthorn extract Antialcoholic Liver Extract,Anti-Alcoholic Liver Extract,Liver Protection,Enhance Liver Nutrition Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyibiotech.com
Hawthorn can enhance myocardial contractility, increase cardiac output, slow down heart rate, dilate coronary blood vessels, and has the effect of lowering blood pressure and blood fat.
2.Rhubarb extract
In addition to laxative and laxative effect, rhubarb also has the effect of lowering blood pressure and cholesterol.
3, wolfberry extract
Lycium barbarum can lower blood sugar, inhibit fat deposition in liver cells, promote liver cell newborn, and have antihypertensive effect.
4, Cordyceps extract
Cordyceps can improve the immune function of the body, strengthen the ability to remove viruses, protect liver cells and indirectly inhibit the occurrence and development of liver fibrosis.
5. Salvia miltiorrhiza extract
Salvia miltiorrhiza is used in more research on anti-hepatic fibrosis treatment. It can protect hepatocytes, reduce the stimulation of stellate cells by hepatocyte injury, necrosis, etc., and inhibit the initiation and development of hepatic fibrosis; the collagen content in the liver is significantly reduced, and the urinary HPP discharge is elevated, suggesting that the drug can promote the degradation of collagen that has been formed, and the proliferating collagen is reabsorbed by hydrolysis.