南门大队地处建瓯城关东溪南岸,过去没有种过柑桔,一九六八年三月在一片丘陵地上开辟了一百亩柑园,种上芦柑三千二百二十五株,温州蜜柑七百七十八栋。一九六九年又种芦柑六百五十株。土壤属红壤类型,质地粘重,有机质含量少,酸性较强。苗木来自建瓯县良种坊,芦柑的砧木为福桔,接穗采自平和县锦溪无病苗圃的幼年树,温州蜜柑的砧木,多数为枳壳,少数为福桔,按穗采自浙江。一九六八年定植后第三年开始结果。一九七○年平均亩产一百三十斤,一九七一年(四年生)平均亩产为六百二十七斤,一九七二年(五年生)平均亩产四百四十斤,一九七三年(六年生)经加强栽培管理,总产量达三千四百担,平均亩产达四千三百六十斤,其中温州蜜柑平均亩产三千四百六十一斤,一九六八年定植的芦柑,平均亩产达五千三百七十斤,成为本地区丘陵山地栽培柑桔成功的一个样板。几年来的生产实践,在丘陵山地上种好柑桔,初步摸索到几点经验: South Gate Battalion is located on the south bank of the Kanto River in Jian’ou City. In the past, citrus was not planted. In March 1968, a hundred mu of citrus orchards were opened on a hilly land to plant 3,225 citrus trees , Wenzhou Mandarin seven hundred seventy-eight. In 1960, another 650 species of citrus were planted. Soil is a red soil type, sticky texture, organic matter content, strong acidity. Seedlings from Jian’ou County, good species of plants, citrus rootstock Fufang, scion from Pinghe County Jinxi disease-free nursery juvenile tree, the rootstock of Satsuma, the majority of Citrus aurantium, a few Fukuai, spike collected from Zhejiang . The third year after planting began in 1968. In 1970, the average yield per mu was 130 kilograms, that of an average of 627 kilograms in 1971 (four-year-olds), and that of an average of 440 per mu in 1972 (five-year-olds) Kg, in 1973 (six years) by strengthening cultivation and management, the total output reached 3, 4 million, the average yield of 4,360 pounds, of which an average of Satsuma mandarin yield 3,464 Kg. The citrus planting planted in 1968, with an average yield of 5,370 kilograms, has become a successful model for the cultivation of citrus in the hilly regions of the region. Years of production practice, planting good citrus in the hills and mountains, initially found a few experiences: