Tomatoes are susceptible to root rot, bacterial wilt, blight, stem rot, and the like. If the tomato growth and development process, every 7 to 10 days of root application of a 400 to 500 times the biological preparations, 800 to 1000 times the humic acid active liquid fertilizer mixture, continuous application of 5 to 6 times, each time each plant drenching 1.5 ~ 2 kg, evenly applied in the soil around the roots of tomato plants, in order to fully penetrate the water into the soil is not appropriate, it will be able to significantly reduce the occurrence of these diseases, to prevent the emergence of rot and dead root phenomenon. Because the beneficial bacteria in the biological bacteria preparation under the nutrient of the humic acid active liquid fertilizer, multiply in the soil, prevent the harmful bacteria from harming the underground root system, stimulate the growth of the root system, make the root system developed, grow robust, and improve disease resistance. As a result, the tomatoes will not be affected and there will be no dead roots.
Vitamin A is a fat-soluble vitamin, an organic compound whose chemical formula is C20H30O. It is stable to heat, acid, and alkali, and is easily oxidized. Ultraviolet rays can promote its oxidative damage. Vitamin A includes A1 and A2, and A1 is retinol. Vitamin A2 is 3-dehydroretinol, and its physiological activity is 40% of that of vitamin A1. [1]
Vitamin A has a variety of physiological functions such as promoting growth, reproduction, maintaining normal secretion of bones, epithelial tissue, vision and mucosal epithelium, and vitamin A and its analogs have the effect of preventing precancerous lesions. Deficiency manifests as growth retardation, impaired dark adaptation and night blindness. Dry eye disease occurs due to dryness, desquamation, hyperkeratosis, and decreased secretion of lacrimal glands of epidermal and mucosal epithelial cells. In severe cases, corneal softening, perforation and blindness occur. Respiratory epithelial cells become keratinized and lose their cilia, making them less resistant to infection. The recommended intake of vitamin A (RNI) for adults in my country is 800 μg retinol activity equivalent per day for men and 700 μg retinol activity equivalent per day for women. [2] Foods rich in vitamin A include liver, egg yolk, and milk powder of poultry and livestock. Carotene can be converted into vitamin A in the mucosa of the small intestine, red-yellow and dark green vegetables. Fruits contain more carotene.
Vitamins,Vitamin Powder,Vitamin K,Vitamin A
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