Luodian navel orange is a specialty of Luodian County, Qiannan Prefecture, Guizhou Province. Luodian County is the best citrus base county in Guizhou Province, and Luodian navel orange enjoys a good reputation all over the country.
The citrus industry in Luodian has a long history of cultivation, and it was once a tribute of the court during Guangxu period of Qing Dynasty. In the early 1980s, our county began to introduce it on a large scale. Newhall navel orange is the main cultivated variety, which has the characteristics of beautiful fruit shape, early maturity, high yield, excellent quality and strong adaptability. 198 1 successfully planted in Shanglong tea and fruit farm in our county. After expert evaluation, navel orange is obviously superior to its origin Luodian. 1986 was listed as a national citrus base county by the Ministry of Agriculture, and Luodian became the largest citrus production base in Guizhou Province, with Shanglong navel orange as the main "_ orange", "new orange" and "golden orange". 1990 passed the "green food" certification and obtained the right to use the "green food" logo. In the same year, Luodian County was rated as "the famous production base of southern subtropical crops" and "the production base of green food". From 65438 to 0999, the county developed eight fruit production demonstration bases with navel oranges as the main part, with a total area of 27,000 mu. The fruit industries such as Luodian citrus officially entered the track of industrialization and large-scale development. On September 20, 2007, some orchards below 375 meters above sea level were flooded by Longtan reservoir area. After five years of restoration and reconstruction, by the end of 20 12, the planting area of the county reached 35,000 mu, the production area was 7,000 mu, the output was 5,250 tons, and the output value was 26.25 million yuan. The citrus industry in Luodian county has made positive contributions to the adjustment of agricultural structure, the development of county economy and the poverty alleviation of farmers.
territorial scope
Luodian navel orange is produced in Luodian County, and seven towns including Longping Town in Luodian County are protected by geographical indications of agricultural products, specifically: Longping Town, Maojing Town, Yang Mo Town, Hongshuihe Town, Luoyi Town, Fengting Town and Fengting Township. The total protected area is 230,583 hectares, with an annual output of 30,000 tons. Luodian County borders Pingtang County in Qiannan Prefecture in the east, Tiane County in Guangxi Zhuang Autonomous Region in the south, Anshun and Wangmo County in Qiannan Prefecture in the west, and Huishui County in Qiannan Prefecture in the north, with a width of 63 kilometers from east to west and a length of 72 kilometers from north to south. It covers an area of 30 13 square kilometers, and its geographical coordinates are 106 23'~ 107 03' and 25 04'~ 25 45' north latitude. The highest altitude is 1400.6m, and the lowest altitude is 242m m. The most suitable growing areas of Luodian navel orange are Longping Town, Fengting Town, Maojing Town, Yang Mo Town, Luoyi Town, Hongshuihe Town and Fengting Town.
Product quality characteristics
(1) External sensory characteristics: Luodian navel orange has oval fruit, orange-red peel, beautiful and shiny fruit shape, single fruit weight of 250g-350g, 8- 10 capsules, kidney-shaped, seedless, tender meat, sweet taste, excellent variety and rich flavor. (2) Internal quality index: the soluble solid content (g/ 100g) of Luodian navel orange is between 13- 16, which is higher than that of ordinary navel orange by1-5g; The reducing sugar (g/ 100g) is between 9.0- 12.0, which is 1-2g higher than that of ordinary navel orange. Vitamin C(g/ 100g) is between 28 and 35, which is higher than that of ordinary navel orange 12- 19g. (3) Safety requirements: The production and operation requirements shall be strictly in accordance with the relevant national regulations on pollution-free agricultural products.