Liancong 7 is a new species of yellow-skin onion that was selected for the study of vegetables in Lianyungang City. It is medium-maturing and has a total growth period of about 250 days. Strong growth, plant erect, no leaf sag, generally 7 to 8 functional leaves, plant height 60 to 70 cm. Bulb round ball, low ball rate, pseudo stem smaller, in line with export standards. The skin is golden yellow, shiny and spicy. The single ball weighs about 290 grams, about 6,000 kilograms per mu, and is resistant to twitching. It is suitable for cultivation in Huanghuai and similar climate areas. The suitable sowing period in Lianyungang area is around September 15th, with 150-200 grams of seed per acre. Before sowing, it is 8~10 hours. The seedbed is made into a sorghum with a width of 1 to 1.5 meters and poured into the bottom water. After the infiltration, the seeds are spread evenly and covered with 1 cm thick fine soil. Miao Huangshou combined irrigation, applying 5 kg of urea per acre. Pay attention to the control of tobacco seedlings and bacterial blight during seedling stage. When the seedlings have 3 to 4 true leaves, colonization takes 55 to 60 days from sowing to planting. Per acre Shiren organic fertilizer 4000 ~ 5000 kg, 50 kg phosphorus and potassium fertilizer. After the fertilization, plunge 20 cm deep, mix the loam and make a 1.2-1.5-meter-wide sorghum. The mulch was preserved 4 to 5 days before colonization, and trifluralin was used for soil sealing before membrane deposition. Planting spacing 15 cm, spacing 13 cm, 22000 ~ 25000 per mu, after planting a flood. Don't chase fast-acting fertilizers before wintering, and timely freeze and seal the cold water before the arrival of the cold current. Keep the soil moist throughout the winter and prevent the seedlings from being dried and frozen. In the middle and late March, the onion seedlings returned to green. After shallow cultivation, 20 kg of urea was applied per acre in combination with irrigation. In the first half of April, the growth of the leaves entered a period of prosperous growth, with 20 kg of urea and 20 kg of phosphorus-potassium compound fertilizer per acre. From late April to mid-May, 30 kg of phosphorus and potassium compound fertilizer was applied per acre. Bulb expansion period can not be short of water, according to the situation of 10 to 15 days of irrigation water. At present, the diseases and pests that affect the production of yellow onion in Lianyungang area mainly include thrips, purple spot, and downy mildew, and deltamethrin can be used to control thrips and thrips; chlorothalonil and mancozeb are used to prevent purple spot; and isoprenil is used. Prevention of downy mildew. Watering was controlled two weeks before harvesting. When the leaves were not dry, the leaves were sprayed with 2,500 mg/liter of Qingxin and about 120 kg were sprayed per acre to prevent germination during storage. In the aboveground, the tubular leaves can be harvested 5 to 7 days after naturally lodging. After harvesting, they must be air-dried and can be hung on storage or piled up outdoors. During the storage period, it was turned 2 or 3 times and the rotten balls were removed in time to avoid normal onion infection. Demetdent Dental Milling machines were built for reliable, precise and error-free milling. Requiring no machine expertise to operate them, they are simple to set-up and feature a host of automated features. Choose from a range of dry-milling and wet-milling devices and create high-quality bridges, crowns and other restorations. Steel Milling Machine,Cnc Milling Aluminum,Cnc Metal Milling Machine,Mini Metal Milling Machine Shandong Carved Intelligent Technology Group Co.,Ltd , https://www.demetdent.com
A new yellow onion variety--Liancong 7