Environmental Requirements for Litchi Growth

Litchi is a very popular fruit in China. There are many varieties, the most common of which is the concubine smiles. The current planting area of litchi is also relatively extensive, mainly concentrated in the south of China. However, growing lychees is not as simple as imagined. Because litchi has certain requirements for the growth environment, what are the specific requirements? Let's take a look at it with the editor.

1. Temperature

Litchi is a kind of subtropical fruit, and the temperature in the main producing areas is generally about 25 degrees. The temperature requirement of litchi is relatively high, and it is precisely because of the temperature that many places cannot be planted. The most suitable growth temperature of litchi is about 24-28 degrees. If the growth rate is lower than 12 degrees, the growth rate decreases obviously. However, it is also necessary to maintain a low temperature in winter to prevent excessive vegetative growth of litchi and promote the flower bud differentiation of litchi in the second year. It begins to blossom only when the temperature is above 10 degrees in spring, and blossoms at about 20 degrees. If the temperature is low for a long time during the flowering and fruiting period, it will lead to litchi falling flowers and fruits, and in serious cases, no harvest.

2. Moisture

Water is very important to the growth of litchi, and it is also the main component of litchi. The annual precipitation in the planting area should be kept above 1200 mm at least. However, different growth stages of litchi have different requirements for water. In the flowering period, we should have less water and do a good job of shelter from the rain. If there is too much water, it will reduce the rate of pollination and fertilization. Rain Water in the young fruit stage should not be too much, for it is prone to fruit drop and so on. However, it is necessary to maintain a certain degree of humidity, because the root absorptive capacity of young trees is weak and is greatly affected by changes in soil moisture. Finally, it is necessary to do a good job of drainage, too much water will lead to the decline of soil permeability, retting root rot and other bad phenomena.

3. Lighting

Litchi is a subtropical plant, so the demand for light is relatively high. The planting area should maintain more than 1700 hours of annual sunshine. Sufficient light can enhance the photosynthesis of litchi, increase the accumulation of photosynthetic matter in litchi, and promote flower bud differentiation. Enhance the quality of the fruit and improve the commodity value. Therefore, we should provide sufficient light for litchi, when the litchi leaves are too dense, the light is less, the nutrition is insufficient, and the change of flowering rate decreases. However, we should pay attention to the light intensity, if the light is too strong, it will increase the evaporation of water, cause the flowers to dry up and reduce the rate of pollination and fertilization.

4. Wind

In fact, the wind will also have a great impact on the growth of litchi. Wind can not only adjust the temperature, but also has the effect of pollination and pollination. For litchi trees with a height of about 2.5 meters, the wind-borne pollen will be distributed in a range of about 10 meters in diameter with the crown as the center. However, if the northwest wind blows during the flowering period of litchi, it will cause the style to dry up and reduce the pollination rate. And we should also pay attention to control the air volume, especially in the fruit development, which leads to litchi trees prone to fall fruit and break branches and other phenomena, seriously affecting the planting efficiency. Therefore, when we build the orchard, we should pay attention to the selection of plots and the preparation of windbreak facilities.

The above is a brief introduction to the requirements of litchi growth environment. Litchi growth has relatively strict requirements on the environment, so it can not be planted in many places, in addition to the above, as well as soil, nutrition and so on, we need to pay more attention to planting. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.