fertilize the soil or land
Buxus macrophylla is too fat, and thin decomposed cakes and fat water are applied every two weeks during the growing period. Give priority to the application of phosphorus and potassium fertilizer, and apply less nitrogen fertilizer to avoid false increase. Fertilization should be less or no after autumn. Put some rotten cake crumbs in the pot as base fertilizer in winter.
prune
When new branches and leaves germinate in spring, they should be properly cut short to keep the crown dense and not loose. Trimming after defoliation in autumn. Cut off budding branches, clustered branches and overlapping branches to maintain a certain shape and tree posture.
Turnover washbasin
It can be turned once every 2 ~ 3 years, preferably in February ~ March in spring before germination and leaf release, and also in autumn. When turning the pot, combine the root system that has been pruned too long, remove the old soil, replace it with fertile and loose culture soil, and add appropriate amount of cake fertilizer crumbs and bran ash. For example, if the roots are raised by culture, the plants can be gradually raised to expose the taproots at the base.
5. Pest control
Buxus macrophylla is damaged by leaf-eating insects such as Buxus macrophylla and Buxus macrophylla. The control method is to spray trichlorfon or dichlorvos 1500 times solution during the larval activity from April to May.
6. Harvest and processing
Autumn harvest. After harvesting, dry it in the sun until it is 70% to 80% dry, and pile it stuffy.