Xining lettuce cultivation
one. Land selection and site preparation Choose soil with fertile soil, good physical soil after deep-cultivation and winter irrigation, and 5000 grams of organic fertilizer, 5 kg of carbendazim, 10 kg of diammonium phosphate, 25 kg of diammonium phosphate, and 15 kg of urea. The ridging film is covered with a ridge spacing of 40 cm. Ridge width 20 cm, ridge height 15 cm. two. Nursery 1. Seedbed preparation, preparation of bed soil according to a 2:1 ratio of dung, and application of 50% carbendazim 8 g/m2, deep plowing, flat pulverization, pouring 1-2 days before sowing foot water. 2. Mu per planting rate, per acre need seedbed 10-20 square meters, 8-10 grams per square meter sowing. 3. In sowing period and spring, the sowing date of greenhouse planting is from late December to early January; the sowing date of open field planting is in early February; in autumn, it is broadcast live in early May and early June. 4. Seeding methods, drilling, spacing 3 cm, after sowing covered wet fine soil 0.5 cm, and add a small arch shed, removed after emergence. 5. Seedling management is promoted before the use of control, 2 pieces of compound leaves can be watered, and gradually increased ventilation and seedlings, seedlings from the 3 cm square, seedlings 3-4 true leaves when the seedlings. Black tea powder has a light and elegant taste, fine powder quality and good solubility. In addition to direct consumption, it is widely used as a nutritional fortification and natural color additive in many industries such as food, health care products and cosmetics, and a wide variety of tea products have been derived. Black Tea Powder,Dark Tea Powder,Anhua dark tea powder Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyiherbs.com