T. chinensis belongs to the Taxus family, which is a unique tree species in China. The main producing area is in the Kuaiji mountain area in Zhejiang Province. Its characteristics are long economic life, less pests and diseases, and extensive resistance to cultivation, but generally it is put into production later. Through the development of the camphor base over the past few years, a set of technologies has been explored, and the results have been established five years after planting and 15 years into a period of high yield. The cultivation techniques are now introduced as follows. First, the use of fine varieties: Toona sinensis should be selected fine varieties of high yield, stable yield, high quality of the asexual vegetative propagation of seedlings, and male trees should use more pollen pollen, pollination time long clone seedlings to improve the fruit setting rate. Second, planting: The early autumn and early winter can be planted in early and early spring, the first to dig a good planting hole, the general digging hole standard length lm, width lm, depth 0.6m, spacing of 4m5m, planting points after digging good enough base fertilizer; The root system of the sweet-smelling seedlings is a fleshy root, and it is best to do the transplanting with the seed and soil to ensure the integrity of the root system. Because Citron is a dioecious plant with wind as the medium, it is necessary to plant proper amount of pollination trees on the upper tuyere of the female eucalyptus. It is generally 3%-5% of the number of female plants. After the planting, it must be shaded in time. It can be used to obtain materials such as bamboo sticks, pine branches, etc. It is better to be a protective bamboo basket, which can not only shade but also prevent human and animal damage. Third, management: 1, young forest period: generally in March and October, in addition to the winter base fertilizer outside the application of nitrogen fertilizer-based, requires a small number of times, the purpose is to promote its growth, summer should pay attention to drought. 2, into the forest period: As the root system has a good aroma, so in January-February to deepen by applying organic fertilizer to improve the soil, water ventilation, promote root growth; fruit can be shallow before harvest. Generally fertilize 3 times a year. In January, the strain applied in the bar is about lOOkg, and the compound fertilizer is applied 1 to 4 months before flowering and after the fruit is picked. Generally 25kg is applied. 3, pruning: generally use more dry round head shape or natural stem shape, to control the crown, the general height within 4-5m; pruning will remove dead branches, dense branches and pests and branches. 4, artificial pollination; can improve the seed setting rate, you can also use high male scion, male plants and other measures to increase production. The collection of pollen should be done with a 1/2 turn of the bud color. It is best to pluck the bud with a small amount of pollen when it is spread out. Spread it indoors and ventilate away from light and wait for the pollen to spread out naturally, then sieve out impurities and choose the best pollination. Period, generally 3-7 days after flowering, fertilization rate is the highest, with the powder amount of about 50g per plant, methods such as dusting method, spraying method. 5. Pest Control: Mainly susceptible to bacterial diseases in late May, resulting in fruit drop. Spray 800 times Daisen zinc or 1000 times 0402†antibacterial agent before the onset of the disease. Spray 1 or 2 times every 1 to 2 weeks. Fourth, timely harvest: Kuaiji mountain area is generally before and after the white dew, 1/3 fruit seed coat from green to yellow, a small amount of calamus cracking when harvested is good.
