Cedar has certain drought resistance, and is afraid of waterlogging. Keep the soil in the basin moist. When it is dry, water it. Water it thoroughly but avoid ponding. Pay attention to timely drainage after rain to prevent cedar rotten roots.
It is suitable to use fermented and rotten human manure and cake fertilizer for fertilization, and the pot culture is mainly cake fertilizer. The best time to apply fertilizer is in April - May. Do not use too much fertilizer and water. Apply 2 - 3 times.
Generally, it is necessary to turn the basin every 2-3 years, which is suitable for germination in spring. Turn basin, change half loose fertile new soil, at the same time cut rotten root. After turning the basin, you need to move it to the shade place for about 15 days, then it can be managed normally.
In the process of cedar management, we need to pay attention to shaping and head changing. Cedar heavy branches, the head will be damaged or in a weak position, must use a strong side technology to pull, bundle, later become the center advantage, this process is to change the head.
Pruning mainly removes over dense branches, overgrown branches, dead branches and disease and insect branches, and creates tree shape freely according to personal preferences. In order to prevent the cedar from growing too high, it is necessary to remove the top bud and the advantage of the top, which can make the cedar sprout more side branches.
The control of leaf blight should be paid attention to during potting. It can spray 500-800 times of dexone. More insect damage, spray 80% dichlorvos 1000-1500 times.
