The field manages small summer heat until the beginning of the autumn for the slow seedling period, do not watering within 15 days after transplanting; break the bottom, prevent compaction, pay attention to flood control. In the event of rain, pour with well water to adjust the temperature. The land is thin and weak and the topdressing nitrogen fertilizer is suitable. From autumn to autumn, it is divided into vegetative growth period, combined with cultivating soil, separate autumn, summer heat, and autumnal 3 times of top dressing and watering. The equinox to the beginning of the winter is a vigorous growth period. In October alone, the amount of growth can account for 40% of the total growth. Therefore, fertilizer and water management should be strengthened during this period, and more fertilizer (a few times more) and water should be used to make the soil dry. The water is usually poured every 5-6 days, and watering is stopped 7-8 days before the onset of spring onions to facilitate storage and transport.
Pest control pests mainly include leafminer, onion thrips, and onion seedlings. The prevention and treatment uses 40% dimethoate 800 times solution or pyrethrin pesticide spray, and 50% phoxim 400 times to irrigate roots; the diseases mainly include purple spot and downy mildew. Disease, gray mold. The use of carbendazim and other bactericidal pesticide sprays.
(1) Natural astaxanthin: it is a powerful antioxidant, known as the king of anti-aging. Its ability to scavenge free radicals is 6000 times that of vitamin C; 1000 times that of vitamin E; yes β- 100 times the efficacy of carotene; It is 20 times more effective than selenium; It is 700 times the efficacy of anthocyanins; It is 320 times the efficacy of tea polyphenols; It is 10 times more effective than lycopene; 800 times that of coenzyme Q10;: It is 240 times more effective than grape seed extract; It is 200 times the efficacy of carotol (Lutein); It is 3000 times higher than resveratrol[ 1]
(2) Vitamin C: also known as ascorbic acid, is an acidic polyhydroxy compound containing 6 carbon atoms: lack of vitamin C can greatly reduce endurance exercise ability. Vitamin C supplementation can significantly reduce exercise-induced oxidative stress. The safe dose of vitamin C supplementation is 0.5 ~ 3.0 g / day. The recommended daily dose of vitamin C supplement is 0.5 ~ 2.0 G.
(6) Anthocyanins: anthocyanins belong to biological flavonoids, and the most important physiological active functions of flavonoids are free radical scavenging ability and antioxidant ability.
(7) Tea polyphenols: tea polyphenols are all natural antioxidant foods extracted from tea. They have the characteristics of strong antioxidant capacity, non-toxic side effects and no peculiar smell. The antioxidant effect of tea polyphenols can eliminate reactive oxygen species and inhibit the consumption of vitamin C, so it can keep skin delicate and white.
Astaxanthin 10% Powder, Glabridin 99% Powder, Tea Polyphenols Powder
Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com