Sugar orange producing area

Oranges are very common fruits in our daily life. Because of its sweet and sour taste and rich nutritional value, it has been loved by many people. In China, the cultivation history of oranges is very long, which can be traced back to more than 4,000 years ago, so China has become one of the most important origins of oranges. On the whole, the planting area of citrus in China is very extensive, and due to the influence of the north and south environment, there are many kinds of citrus produced. Let's see where oranges come from.

Let's look at the origin of oranges in the world.

Citrus cultivation in the world is mainly distributed in the area south of 35 north latitude, which is warm and humid, and the area with larger water body warming can be pushed north to 45 north latitude. There are 135 countries in the world that produce oranges, with an annual output of102822 million tons and an area of 1073 million mu, ranking first among the hundred fruits. Brazil ranks first with 24.2526 million tons, the United States ranks second with16.3352 million tons, and China ranks third with10 million tons.

Distribution of Citrus in China

Oranges in China are distributed between north latitude 16 ~ 37, with the highest elevation of 2,600 meters (Batang, Sichuan), starting from Sanya in Hainan Province in the south, reaching Shaanxi, Gansu and Henan in the north, Taiwan Province Province in the east and Yarlung Zangbo Grand Canyon in Tibet in the west. However, the economic planting areas of citrus in China are mainly concentrated between 20 and 33 north latitude and below 700 ~ 1000m above sea level. It is produced in the water system in the south of the southern slope of Qinling Mountain, the southern slope of Funiu Mountain and the southern Dabie Mountain, the southeast of Taiwan Province Province, the south of Hainan Island and the southwest of southeastern Tibet to low altitude areas. Cold-resistant site 9 ~ 1 1. There are 19 provinces (municipalities and autonomous regions) producing oranges in China, including Taiwan Province province. Among them, Taizhou, Fujian, Hunan, Sichuan, Guangxi, Hubei, Guangdong, Jiangxi, Chongqing, Taiwan Province and other provinces 10 are the main producing provinces of citrus, followed by Shanghai, Guizhou, Yunnan, Jiangsu and other provinces (cities), and Shaanxi, Henan, Hainan, Anhui, Gansu and other provinces are also planted. Citrus is grown in 985 counties (cities, districts) in China.

The suitable growing environment for oranges is

1. temperature: the growth and development of citrus fruits need 12.5 ~ 37℃. The day and night temperatures of flower bud differentiation in autumn are about 20℃ and 65438 00℃, respectively, and the soil temperature of root growth is roughly the same as the ground temperature.

2. Humidity: Generally, tropical and subtropical regions with annual rainfall around 1000mm are suitable for citrus planting, but due to uneven distribution of annual rainfall, irrigation is often needed. The suitable relative water content of soil is 60% ~ 80%, and irrigation is needed when it is lower than 60%. Too much rain will cause soil water accumulation or orange orchards with high groundwater level and poor drainage, resulting in root death. Orange fruit trees require that the relative humidity of the air should be around 75%.

3. Soil: Oranges can adapt to a wide range of soil. Purple soil, red and yellow soil, beaches and beaches can all grow at ph 4.5 ~ 8, and the most suitable ph is 5.5 ~ 6.5. The growth of citrus roots needs high oxygen content, and the soil with loose texture, good structure, organic matter content of 2% ~ 3% and good drainage is the most suitable.

The nutritional value of oranges is as follows

1. Oranges are rich in vitamin C and citric acid, the former has the function of beautifying, and the latter has the function of eliminating fatigue;

2. The thin endothelium of oranges contains dietary fiber and pectin, which can promote defecation and lower cholesterol;

3. Hesperidin can strengthen the toughness of capillaries, lower blood pressure and dilate the coronary artery of the heart, so oranges are food to prevent coronary heart disease and arteriosclerosis. Studies have confirmed that eating oranges can reduce cholesterol deposited in arterial blood vessels and help reverse atherosclerosis;

4. In fresh citrus juice, there is a substance "Nomilin" with strong anticancer activity, which can decompose carcinogenic chemicals, inhibit and block the growth of cancer cells, multiply the activity of detoxification enzymes in human body, prevent carcinogens from damaging the nucleus and protect the integrity of genes.

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Since ancient times, there has been a saying in China that "oranges are born in Huainan, and oranges are born in Huaibei", which strongly shows that the cultivation history of citrus in China is not only long, but also there are many planting areas, so people have always had rich choices in the supply of citrus. Oranges are rich in vitamin C, citric acid, dietary fiber, pectin and other nutrients, which can not only help beauty beauty, but also provide some dietotherapy help in lowering blood pressure and blood lipid. Therefore, it is suggested that you can eat more of this fruit in your daily life.