Luochuan Red Fuji. Luochuan apple has a very obvious feature, which is high hardness and high sweetness. Luochuan Red Fuji has a unique geographical environment and is the best eugenic area for apples. The Luochuan Red Fuji apple is famous all over the world for its delicate meat, rich fruit flavor and crisp and sweet juice. Apple, a deciduous tree plant of Rosaceae, has long stems and short thick cylindrical branchlets; Leaf blade oval, smooth surface, serrated edge and stout petiole; The flowers are small and umbrella-shaped, pale pink and fluffy on the surface; The fruit is large, oblate, short and thick. Flowering in May; The name of the apple fruiting period from July to 10 was first seen in Yu Shu in the Snow Garden by Wang Shimao in the Ming Dynasty, "The apple in the north is the change of bonus." Apples are native to Central Europe, northern Iran and southern Russian Caucasus, and China is mainly distributed in Xinjiang and Ningxia. Apples generally grow in sunny, cold-resistant, cold and dry climate conditions such as hillside terraces, plain mines and hills, and are not barren. They are suitable for neutral or slightly acidic sandy loam with loose soil, deep fertility and good drainage. Propagation methods include tuber method, grafting method, sowing method and cutting method. Natural reproduction of offspring depends on seed propagation, among which grafting reproduction is the fastest. "southern Yunnan materia medica" records that "apples can nourish the lungs, relieve summer heat, stimulate appetite and sober up, and can cure bone and muscle pain." Apple is a kind of nutritious fruit, and is known as the king of fruit. According to the traditional western diet concept, an apple a day keeps the doctor away. Many Americans also regard apples as a necessity to lose weight. They go on a diet one day a week, and only eat apples on this day, which is called Apple Day. Apple fruit is colorful and lasts for a long time, and can be made into bonsai for indoor appreciation; Parks, green spaces or courtyards are often planted on the roadside for viewing; Fruit can be eaten raw when it is ripe, processed into sauce, preserved fruit, dried fruit or canned fruit, and can also be used for wine making.