Variety selection: choose early maturing, disease resistance, high quality varieties such as Changchun Mitsu, Jin Za 2 and Jinchun 2 etc. Nursery 1. Seedling period: greenhouse cultivation in early February 2. Preparation of nutritious soil: The ratio is decomposed organic fertilizer: Garden field soil: Fine furnace ash = 5:4:1. 0.5 kg of urea per cubic meter of nutrient soil and 1-2 kg of diammonium phosphate 3, soaking seed germination: seeds soaked 4-6 hours, set the germination at 25-30 °C, 1-2 days can bud 4, sowing: can be broadcast within the nutrition or broadcast on the seedbed (this method requires seedlings). After sowing, it should be kept at 25-30°C during the day and 18-20°C at night. After emergence, it should maintain 25-30°C during the day and 12-16°C at night. The seedling age is about 40 days. 5, strong seedlings standard: plant height 15-18 cm, 5-6 true leaves, dark green leaves, leading stretch, 1 cm thick stems, short internodes, top flower buds Colonization 1, planting period: late March 2. Density of planting: Large row spacing 75 cm, small row spacing 25 cm, plant spacing 30-33 cm, 3800-4200 per acre. 3, planting methods: Mushi organic fertilizer 5000 kg, 20-30 kg of diammonium phosphate, 10 kg of urea. 100 cm wide, planted in dark water. Plant extract is a kind of product that takes plant as raw material, uses appropriate solvent or method. According to the use needs of the final product, through physical and chemical extraction and separation process, directional acquisition and concentration of one or more effective components in plants, without changing the structure of its effective components. The product concept of plant extracts is relatively broad. According to the different components of the extracted plants, they form glycosides, acids, polyphenols, polysaccharides, terpenoids, flavonoids, alkaloids, etc. Herbal Extracts,Barley Grass Powder,Turmeric Extract,Rose Extract Powder Xi'an Longze Biotechnology Co., Ltd. , https://www.bestbilberry.com