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Onion Series New Varieties Introduction
The new varieties of high-pile onion series are a series of new varieties cultivated in the roots and stems vegetable breeding project of the vegetable research center of Beijing Academy of Agriculture and Forestry Sciences, and have been widely promoted in the middle and long-day sunshine areas in central and northern China. The characteristics of the varieties and cultivation points are described below. First, characteristic characteristics 1. The sunshine type of Golden Globe No. 1 is 60--70cm in height, the bulb is round, its longitudinal diameter is 7--8cm, its transverse diameter is 8--9cm, and its single ball mass is about 250-300g. Bulb outer brown, shiny, with 8-11 thick scales, milky white. The meat is delicate, with few fibers, and the flake has a moderate moisture content, a lighter spicy taste, a slightly sweet taste, and good quality. Cold resistance and strong resistance, resistance to pumping, storage and transportation. The variety is middle and early maturity, and from the time of planting and harvesting to about 100 days, the output of 667 square meters is 4000-4500kg, which is an ideal variety for fresh food, processing and export. In North China, seedlings are generally sown in late August, and planted in late October-early November or next March, and harvested in June. 2. The sunshine species of Golden Globe No.2, the aboveground part grows vigorously, the leaves are dark green and there is wax powder; the bulbs are piled round and round, the outer skin is golden yellow, the longitudinal diameter is 7--8cm, the horizontal diameter is 8-10cm, the single ball mass is 250- -300g. The fleshy scales 8-11 layer, milky white. The bulbs are tender, moderately spicy, moderate in moisture, and of good quality. Variety strong resistance, resistance to disease and cold; bulbs compact at the top, very resistant to storage and transportation, wide adaptability. Medium maturity, high yield, 667 square meters of output more than 4000kg, is ideal for fresh food, processing and export ideal. Sowing date and sowing area are the same as Golden Globe 1. 3. Golden Globe No. 3 long-day type species, plant height 60--70cm, bulb high pile spherical, brown outer skin, longitudinal diameter of 8-9cm, diameter 6--7cm, single ball mass 300g. Spicy spicy, high dry matter content, relatively low moisture content, suitable for cooking and processing. Variety disease resistance, cold resistance, long storage period, up to about six months, planting to harvest 100--120d, medium-harvest, 667 square meters of output more than 4500kg, is the ideal species exported to South Asia, Southeast Asia, in the northwest, northeast and alpine The area can be nursed in protected areas from March to April, planted in May and harvested from August to September. 4. Violet selected No. 1 long-day type, high pile ball bulb diameter, longitudinal diameter 7-8cm, diameter 8-9cm, single ball mass of about 300g. The skin is purplish red and has a bright sheen. The meat is delicate and white. Spicy, sweet, dry matter content, low moisture content. Varieties resistant to disease, cold, storage period of about six months. Resistance to twitching, ball-resistance; late-maturing varieties, from the time of planting to harvest about 120d, 667 square meters of output 4000--5000kg. Ideal for export, fresh food and processing. The northwest, northeast, and other regions can be nursed from 3- or 4-months of protection, planted in May, and harvested in September. Second, cultivation points 1. Nursery bed selection loose and fertile, strong water retention of soil, before sowing Shizujifei, 667 square meters of fermented organic fertilizer 2000kg, phosphorus and potassium fertilizer 25kg. The sowing volume of 667 square meters is 2.5--3kg. Seedling management is mainly to cultivate strong seedlings. The criteria for strong seedlings are: seedling age 45--50d, plant height 20--25cm, 3--5 tubular leaves, stem diameter 6--8mm. 2. Before planting, 667 square meters of Daejeon applied 5,000 kg of organic fertilizer, which was turned into flat rakes after planting. After planting 25,000--30000 plants per 667 m2, spacing was 17 cm, and plant spacing was 13 cm. 3. After the planting, the topdressing fertilizer was applied 2 times. After 30 days and 50 days after planting, the top-dressing yield increase effect was the best. The first 667 square meters topdressed ammonium sulfate 15--20kg, and the phosphorus-potassium compound fertilizer 20--30kg passed the second time every 667 square meters. Ammonium sulfate 20--25kg, phosphorus and potassium compound fertilizer 30--50kg. 4. In order to prolong the storage and supply period, 0.25% of Qingxin can be sprayed 15 days before harvest to facilitate bulb absorption. After most of the pseudostems fall down, they are harvested, harvested, and then dried for 5-7 days to begin storage or sale.