Where is the origin of carrots?

Carrots originated in southwest Asia, with Afghanistan as the earliest evolutionary center and a cultivation history of more than 2,000 years. /kloc-was introduced into the European continent from Iran in the 0/0 century, and was seen in Britain in the 0/5 century, and developed into a European ecotype, especially along the Mediterranean coast. /kloc-was introduced to the United States in the 6th century.

/kloc-was introduced into China from Iran in the 3rd century, and developed into an ecotype in China, where it was most planted in Shandong, Henan, Zhejiang, Yunnan and other provinces. Carrots were introduced to Japan from China in the16th century.

At the end of Yuan Dynasty, it was introduced into China, so it was called carrot, also known as red root, golden bamboo shoot and clove radish, which was the root of carrot in Umbelliferae. Its fleshy root is one of the main vegetables in spring and summer, and it enjoys the reputation of "small ginseng" and "golden bamboo shoot".

Growth conditions and extended data of carrot;

1, soil conditions: carrots require soil to have certain morphological texture and nutrient content. Land with irrigation conditions and convenient transportation is needed. It is not easy to grow carrots in rainy land, corn and flax land with herbicides, and raw wasteland.

2. Temperature condition: When the soil temperature is stable above 8 degrees (May 10- 15), the seeds can be planted and germinated above 15 degrees. The most suitable temperature for growth is 23-25 degrees during the day and 12- 15 degrees at night. The large temperature difference determines the high quality of carrots and the increase of sugar content.

3. Moisture condition: When the soil moisture content is above 20%, carrots can absorb water to prepare for germination, but it is more appropriate to ensure the soil moisture content at 60-70% during actual sowing.

4. Fertilizer conditions: The fertilizer elements required for carrots mainly include macro elements (nitrogen, phosphorus and potassium), medium elements (calcium and silicon) and trace elements (boron, zinc, molybdenum, magnesium, manganese and iron). The demand for fertilizer for carrots is comprehensive and sufficient. Farmers must understand soil fertility and apply fertilizer scientifically in order to obtain a bumper harvest.

Baidu encyclopedia-carrot