What is the age and origin of litchi?

Litchi Age: The history of cultivating and using litchi in China can be traced back to the Han Dynasty more than 2,000 years ago.

The Origin of Litchi: The earliest literature about Litchi is Sima Xiangru's Poem on the Forest in the Western Han Dynasty, in which "Litchi" was written, and "Litchi" was written as "Litchi" around the Eastern Han Dynasty.

Litchi is mainly distributed in north latitude 18-29 degrees in China. Guangdong has the most cultivated land, followed by Fujian and Guangxi. Sichuan, Yunnan, Guizhou and Taiwan Province provinces also have a small amount of cultivation. Southeast Asia is also cultivated, and Africa, America and Oceania have introduced records. Litchi trees like high temperature, humidity and sunshine.

Its heredity requires that the temperature of flower bud differentiation is relatively low, but the lowest temperature will be frozen when it is MINUS 2 to MINUS 4 degrees Celsius. In flowering period, sunny and warm weather is not the most favorable, humidity is too low, rainy and continuous, dry and hot weather or strong north wind are not conducive to pollination. The disastrous weather in the flower and fruit period will lead to the fall of flowers and fruits, and even lead to poor harvest.

Extended data:

Litchi is mainly planted on hills and slopes. These soils have low organic matter content, shallow soil layer and poor water and fertilizer conservation ability. If we do not pay attention to soil management, the growth and development of litchi will be seriously affected.

Mycorrhizal ventilation of litchi is beneficial to root growth and development. Young orchards usually loosen the soil and weed 5-6 times a year. In summer and autumn, the temperature is high and humid, weeds grow fast, the frequency of loosening soil and weeding is high, the ground temperature is low in spring, the ground surface is dry in winter, the rainfall is low, weeds grow slowly and the farming frequency is low.

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