Benzethonium Chloride Surfactant Optical Brightening Agent Ob-1,Dioctyl Dimethyl Ammonium Chloride,Benzalkonium Chloride Food additive Herbicide Co., Ltd. , http://www.chherbicide.com
(1) Harvesting seeds Dandelion can usually flower and seed in two years. In the wild from May to June, there are single plants and community growth. The longer the dandelion grows, the more flowers it blooms and the more it blooms than 20 flowers. Seed maturity is short after flowering, generally 13-15 days seed maturity. Seed maturity or not mainly depends on the change of the outer disk from green to yellow. The seed of each disk also changes from white to brown, which means that the seed can be harvested at maturity. After the seed matures, the accompanying flocks will fly away with the wind and can be harvested when the end of the disk is cracked. This is the key to the success of seed harvesting. After the disk is removed, it is cooked in the room for 1 day until all the discs are scattered, and then dried for 1 to 2 days. When the seeds are half dry, the velvet pieces at the tip of the seeds are picked off by hand and then dried. The large-leaved Pugongying is 2 grams in weight, and the lobular type is 1-1.2 grams. (2) Site preparation for bed 1 selection. Dandelion adaptability is both drought-resistant and alkali-resistant, like loose loose fertile drainage sandy loam. 2 fertilization. Apply Organic Fertilizer per hectare, preferably horse manure, 30,000-45000 kg, mixed superphosphate 225-300 kg, evenly spread the ground, and then deep-dip 20 cm. 3 Do beds and do ridges. After the ground has been leveled, make a seed bed that is 100 cm wide, 15 cm high, and 10 meters long, or 30 cm high, 30 cm wide, and 20 cm wide shoulders. (3) sowing and burying the root 1 bed sowing. A small ditch with a depth of 1 cm in depth and a width of 5 cm was drilled. Seeds were uniformly sowed in the ditch, covered with fine soil, and pressed with wooden rakes with a 15 cm spacing. 2 ridge broadcast. Shun ridge depth of 1 cm, 5 cm wide ditch. After sowing, cover the fine soil and suppress it with a mallet. 3 buried root planting. In order to raise the city's income and increase income, the excavation of roots in the greenhouse to plant roots in the greenhouse can yield a multiplier effect. When the late autumn (mid-and late October) dandelion is frosted for the first time, and the leaf color changes from green to red, it is best to take advantage of the wild excavation of the dandelion root system. The bed is made in a greenhouse and the specifications are as described above. By row spacing 15 cm, 5 cm planting roots, buried in the original root surface position is appropriate, so that the top of the root appears to be exposed non-exposed, hand compaction can be. The greenhouse temperature is controlled at about 20°C, and dandelion will grow normally. If dandelion is marketed during the peak season of market demand, it is necessary to control the greenhouse temperature so that the plant growth is limited and satisfactory results can be obtained. In order to achieve early seeding after sowing, the seeds can be placed in warm water of 50-55°C, stirred until the water is cool, then soaked for 8 hours, and the seeds are wrapped in a damp cloth and placed at 25°C. Around the place. Cover it with a damp cloth and pour it in warm water at 50°C every morning and evening. Seeds germinate in 3-4 days. The sowing rate per hectare is 11.25 kg. (4) Field management 1 Loose soil weeding. Half a month after the emergence of dandelion, weeding was performed once. Beds are sown with small pointed picks between the seedlings; the ridges are sown with a hoe in a furrow. The cultivator will be cultivated once every 10 days. After the ridges are closed, weeding must continue. 2 Dingmiao. Pu Gongying’s plant leaves are large on the ground. Management must fully consider the growth of the plant. There must be room for it. Usually after the emergence of seedlings can be set 10 days, spacing 5-10 cm. 3 water and fertilize. Always water the dandelion during growth to keep the soil moist. Since dandelion needs a lot of water after emergence, keeping the soil moist is the key to dandelion growth. Sowing dandelion cannot be harvested that year. After winter, apply 2000 kg of organic fertilizer per 667 square meters on the bed (ridge), preferably decomposed horse dung. In this way, it not only plays a role in fertilizing but also protects the roots from wintering safely. Fertilizers are not advocated. Although the tender plants and leaves are dark and long, the loss of the connotation of green plants also loses the game style of dandelion. Generally, it can produce 9000-10500 kg per hectare.