Litchi yield should be improved and management should be adjusted according to local conditions.

"due to the limitations of land and water resources, the current mode of production of litchi must be changed." Li Li of the National Agricultural Technology extension Center of the Ministry of Agriculture pointed out that the sound development of litchi industry can be promoted through the scientific use of fertilizers to improve unit yield and quality, and to support farmers' cooperatives and leading enterprises. What is the scientific way of fertilizing litchi? According to Dr. Yao Lixian of the soil and Fertilizer Research Institute of Guangdong Province, through a long-term study of litchi specimens from more than 100 experimental sites in Guangdong, Guangxi and Fujian, it is concluded that litchi trees in Guangdong are generally deficient in magnesium and calcium. Some orchards will also have varying degrees of boron deficiency. He said that this conclusion overturned the previous view that "litchi is extremely boron deficient" and suggested that fruit growers should not take the same management measures for different orchards. In addition to rational fertilization, the participating fruit farmers are also concerned about how to obtain higher yield per plant. Two South African scientists invited at the conference showed off the tricks of South Africa as a "litchi power": first, Dr. Gerhard Mostert taught all the needs of trees in terms of water, nutrition, light and organic matter, and then Dr. ReginaCronje came up with a way to increase the yield of a single plant by "expanding the row spacing and dwarfing the crown". Liu Fuqian, a senior agronomist of Maoming Fruit Bureau, said that the disadvantage of traditional litchi planting in China is that the density is too high and the tree nutrition can not be supplied effectively, so the yield per plant has been unable to increase. Chen Houbin, chief scientist of the national litchi and longan industrial technology system, believes that the two methods introduced by South African scientists can improve the rate of light cooperation and maximize tree nutrition. In addition, Zhang Chenglin, a professor at the School of Horticulture of South China Agricultural University, also introduced the "integrated water and fertilizer system" at the meeting. This technology solves the problem of low fertilizer efficiency, which can save 30% of fertilizer while saving 50% of water, and increase output.