Camellia oleifera history
65438-0978, Changning attended the National Camellia Oleifera Production Conference and introduced the production experience of Camellia Oleifera at the conference. 198 1 year, Changning was awarded the "Golden Cup Award" trophy by the Ministry of Commerce.
From 1984 to 1989, Changning was included in the WFP WFP- China 2696 project-Camellia oleifera upgrading project in Hunan Province by the State Forestry Department and the Provincial Forestry Department.
From 65438 to 0984, our city received food aid from the United Nations World Food Program. In 200 villages of Yiyang, Baifang, Shuikou and Yin Tian in 0/7 townships of our city, the transformation project of old camellia Kenny Lin and low-yield forest was implemented. * * * Camellia oleifera forest in the project area covers an area of 344,000 mu, including 50,000 mu of old Camellia oleifera Kenny Lin and 30,000 mu of low-yield forest, with a total investment of 72 1.65438. The World Food Program provided 2 1650.883 tons of millet and 360.848 tons of edible oil for the project according to the standard of 3 kg of millet and 50 g of edible oil per working day. Governments at all levels arranged funds of 4,052,770 yuan to support the project. Under the leadership of the construction headquarters of oil-saving tea project, Changning's project started from 1, 984, 1, 000, 65438.
Kenny Lin project of old residual camellia oleifera started construction on 1984. Through comprehensive afforestation technical measures such as horizontal ditch soil preparation, afforestation, fertilization, annual tending of young forests, pruning and shaping, and pest control, Camellia oleifera in our city has embarked on a new road of upgrading and transformation. According to the fixed quadrats planted in 1985 and 1986, the average oil yield per mu reached 4.55 kg and 5.000 kg respectively in 199 1 year, 1992 and 1993. The transformation project of Camellia oleifera low-yield forest started from 1985 and was completed at 1994. Through comprehensive afforestation technical measures, such as reclamation and fertilization, thinning and thinning, removing the inferior and ensuring the superior, pruning and brightening the feet, preventing and controlling pests and diseases, and digging horizontal multi-ditches, the ventilation and ventilation conditions of woodland have been greatly improved, the stand density and tree structure have been adjusted, nutrition has been supplemented, the nutrient consumption of trees has been reduced, the tree vigor has been significantly enhanced, and the yield of camellia oleifera has been significantly improved. According to the introduction of county Camellia oleifera engineering headquarters, 12 plants were randomly distributed, with an area of 10 16. 12 mu, and 1985 produced an average oil of 3.0 1 kg in the first three years, and 8.69 kg and 69 kg respectively after the transformation. 1988 mu ping 1 1.29 kg, 1989 mu ping yield, 1989 mu ping yield, which is composed of experts and scholars such as provincial science and technology commission, Yalin Institute of China Academy of Forestry, Central South Forestry College, Provincial Forestry Department and Provincial Academy of Forestry.
1993, Changning was included in the second batch of national low-yield camellia oleifera forest transformation projects by the Ministry of Forestry. Since 1993, Yiyang, Luo Qiao, Banqiao, Yangquan, Guanling and Xinzhou original six districts 10 have completed the low conversion area10.78 mu, including 8300 mu newly planted and 9500 mu conventionally converted. At present, the growth of young forests is gratifying, and the low-conversion forests are changing.
1998, Changning was included in the national cross-century demonstration project of high and stable yield of Camellia oleifera. 1999 to 2000, the city completed the construction of 3900 mu of demonstration forest of camellia oleifera, and the afforestation survival rate reached over 99%.
In 200 1 year, Changning was named "China Camellia Hometown" by the State Forestry Administration.
From June 5438 to 10, 2007, the "Toona sinensis seed" brand tea oil produced by Hengyang Nantian Tea Oil Co., Ltd. won the gold medal in the second forest products Expo in Hunan Province. "
Camellia oleifera varieties
There are two main varieties of camellia oleifera in Changning: cold dew seeds and first frost seeds. Cold dew seed is the main variety group, which is distributed all over the city. Small fruit, 4 grains per fruit, high oil yield. The oil yield of fresh fruit can reach 7%, and the highest can reach 8%. The first frost seeds are distributed all over the city, mixed with cold dew seeds, most of which are distributed in Yin Tian town, with large fruits, about 7 seeds per fruit, and the oil yield of fresh fruits is 5-6%. The first frost and cold dew varieties of Changning Camellia oleifera are divided into red ball, red peach, green ball, green peach, yellow ball and yellow peach.