Tea seed propagation can be broadcasted live and transplanted. The earliest history was the use of live broadcast, which could eliminate the labor and expense of nursery and transplanting procedures, and the seedlings had a strong life ability. Seedlings transplanting can be intensive management, easy to cultivate, and can choose strong seedlings, so that the planting of tea seedlings more uniform. Most of the tea regions in Yunnan are well-defined for their wet and dry seasons, and there are continuous droughts in winter and spring. The live seedlings are generally difficult to seedling. Therefore, most of them are transplanted with seedlings. The use of seed propagation in tea plants should mainly focus on the following points.
To plant management
In order to obtain high quality and large quantities of tea, it is necessary to do a good job in the management of the tea gardens that collect the tea, and promote the flowering of the tea trees, the high rate of fruit set and the fullness of the seeds.
Timely harvest and proper storage and transportation
The quality of tea quality is closely related to the management, storage and transportation of the tea harvesting period and harvesting. Harvested at the right time, its material accumulation, full grain and high germination rate, seedling growth robust. If the tea is not immediately sown after harvest, it should be properly stored (at 5 °C, relative humidity 60% to 65%, tea moisture content of 30% to 40% storage conditions), otherwise the tea will deteriorate and lose vitality. If tea is shipped to it, it must be packaged and the conditions of transportation must be observed to prevent deterioration of the tea.
Pre-seeding
The stored tea is subjected to favorable stimuli by chemical, physical and biological methods before sowing so as to promote rapid seed germination, robust growth, reduced pests and diseases, and enhanced resistance to stress.
Fine sowing
Because of the high fat content of tea and the poor ability of the top soil of the epicotyl, the seeding depth of tea and the number of seeds of the seeds have a great influence on the seedling emergence rate. Sowing cover soil depth of 3 ~ 5 cm, autumn and winter sowing is slightly deeper than spring sowing, and sandy soil is deeper than clay. The sowing is appropriate, the spacing of the holes is 15 to 20 cm, the distance between the holes is about 10 cm, and 2 to 3 seeds of tea leaves are planted in each hole, and 3 to 5 seeds are planted in the middle and small leaves. After seeding, it is necessary to achieve strong seedlings, seedlings, and whole seedlings. The management of weeding, fertilizing, shading, drought protection, cold damage, and pest control must be done at the seedling stage.
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