Growing altitude of kumquat:

It is distributed in Nan 'ao Island in Guangdong, China and Yaxian, Dongfang, Qiongzhong and Chengmai in Hainan. It is planted all over the south of the southern slope of Qinling Mountain. It is common in mountain evergreen broad-leaved forest around Jianfengling, Hainan, China, and grows between 600- 1000m above sea level.

Choose a slope that is 500-600 meters away from the main road, 450-550 meters above sea level, with a slope less than 30 degrees and good lighting conditions, and the slope faces south or southeast. It is required that the soil layer is deep, loose and fertile, the depth is greater than 1 m, the groundwater level is below 1 m, and the pollution-free water source is used as the irrigation water for the orchard. There should be a capped mountain in the orchard.

There are flood control ditches, main roads, branch roads and sidewalks. Select excellent varieties with strong disease resistance and cold resistance. The cultivation method of sparse planting is adopted. The plant spacing is 2.3m× 3m. 80- 100 plants per mu. Prune the seedlings before planting, and remove the film on the interface: planting mainly in spring, generally from early February to mid-March, three-dimensional development of orchards, comprehensive development of pigs, biogas and fruits, fruit planting in mountainous areas and pig raising in mountainous areas.

The principles of plastic pruning are light pruning for weak trees, light pruning for strong trees and moderate pruning for middle trees. Combination of thinning and cutting, leave more branches and leaves, do not cut what can be cut, and do not cut what cannot be cut. Adult fruit trees. Cut a little more on the top and outside of the crown. Cut the lower and inner parts of the crown less.