Growth cycle of Pinus thunbergii
The growth cycle of Pinus thunbergii is 60- 100 days. Black pine is a short-lived variety of all pine trees. At the age of three, she entered the early flowering period and began to transform from vegetative growth to reproductive growth.
Black pine is also widely planted in China, and it can be planted in other areas except the high heat area in the south and the cold area in the north.
Growth rate of black pine
Black pine grows fast and well. The growth rate is different in different periods, and the growth rate is fast in the early stage, and the height can reach about 30 meters. Black pine is an evergreen tree of Pinaceae and Pinus, also known as white bud pine. Its bark is gray-black, and it blooms every April. Flowers are solitary, female flowers are born at the top of new buds, male flowers are reddish-brown, cylindrical, and the seeds are oval.
Growth cycle management of Pinus thunbergii
Temperature management: Black pine is not cold-tolerant, and is suitable for growing in warm and humid maritime climate areas. The curing temperature should be controlled between fifteen and thirty degrees.
Fertilization management: Generally speaking, it is better to use pine trees with thin soil, and try to control fertilizer and water so that the supply of fertilizer and water can just maintain the minimum survival of black pine. This may help to avoid pine needles being too long, and pine trees should be fertilized more during bud cutting. Cutting buds for weak seedlings is foolish and will hinder the next germination.