1, pineapple
Pineapple is native to tropical high-temperature and arid areas in South America, and likes warmth. It can grow in the annual average range of 15 ~ 40℃, but it grows slowly below 15℃ and basically stops growing below 10℃. 5℃ is the critical temperature of chilling injury. It is drought-tolerant, but it still needs a certain amount of water for its growth and development, so it is more tolerant to shade and has wide adaptability to soil. Because the root system is shallow and aerobic, it is best to choose loose and well-drained sandy loam or mountain red soil with pH value of 5-5.5, while barren, viscous and poorly drained soil and soil with high groundwater level are not conducive to growth.
2, grapefruit
Grapefruit, also known as Wendan, Xiangluan, Zhuluan, Neizi, etc. , a mature fruit of Rutaceae pomelo, is produced in China, Fujian, Jiangxi, Hunan, Guangdong, Guangxi, Zhejiang, Sichuan and other southern regions. It is sweet and sour, cool and moist, rich in nutrition and high in medicinal value. It is one of the fruits that people like to eat, and it is also recognized by the medical community as the most therapeutic fruit. Citron tea and grapefruit peel also have practical value and can be used as medicine.
3. Sugarcane
Sugarcane is a tall and solid perennial herb, which is widely planted in southern tropical areas such as Taiwan Province Province, Fujian, Guangdong, Hainan, Guangxi, Sichuan and Yunnan. Suitable for planting in places with fertile soil, abundant sunshine and large temperature difference between winter and summer. Temperate and tropical crops are raw materials for making sucrose, and ethanol can be extracted as an energy substitute.
4. Litchi
Litchi likes high temperature, high humidity and sunshine. Genetically, it is required that the temperature during flower bud differentiation is relatively low, but the lowest temperature is -2 ~-4℃, which will suffer from freezing injury. Sunny and warm weather is the most favorable during flowering, and low humidity, continuous rain, dry heat or strong north wind are not conducive to flowering and pollination. Unfavorable disaster weather in the flower and fruit period will lead to falling flowers and fruits, and even loss of harvest.
5. Longan
Longan is a subtropical fruit tree, which likes high temperature and high humidity. Temperature is the main factor affecting its growth and results. Generally speaking, longan can grow and develop well where the annual average temperature exceeds 20℃. Drought resistance, acid resistance, barren resistance, no soaking. It grows well in red soil hilly land and dry land, is easy to cultivate, has long service life, high yield and great economic benefit, and people like to plant it.