This article introduces the ecological habits of Picea abies, as well as the cultivation and management of Picea abies and round forest use.
One, Ikatsugi's form of character
Deciduous tree, up to 25 meters high.
The crown is narrow, steeple-shaped; trunk ear dilated, often with knee-shaped breathing roots; bark brown, longitudinal split into long strips; large branches upward stretching, annual staff green, biennial staff maroon.
The leaves of Pond's fir are subulate or barred, spirally arranged close to the branchlets or barred leaves are slightly spreading, the midvein is slightly elevated, the leaf color is tender green in spring, and turns brownish red in autumn.
The cones ripen in October and are globular with reddish-brown, irregularly triangular seeds.
The ecological habit of Ikatsugi
Ikatsugi is a strong positive species.
Intolerant of shade, suitable for growth in areas with an average annual temperature of 1220 ℃, the temperature is high, more conducive to growth; cold tolerance is strong, a short period of low temperatures (-17 ℃) from freezing; annual precipitation of 1,000 millimeters or more suitable for growth of the pond fir.
Ikebukuro prefers deep, loose, moist acidic soil, has a strong moisture tolerance, long-term immersion in water can also grow normally; also has a certain degree of drought tolerance.
The branches and trunks of the tree are rich in toughness and the crown shape is narrower, so the wind is strong.
Sprouting power, for fast-growing species.
Three, the cultivation and management of the pond fir
The pond fir is mainly sown and cuttings method of reproduction.
The main root of the pond fir is thick and deep, the side is very little and sparse, when transplanting to pay special attention to less injury to the root system, when transporting the seedlings with a wet grass cover tied to protect the root system, transplantation in the spring and fall can be carried out, but in the spring is good.
Ikebukuro is a fast-growing species, such as intercropping, it is necessary to comprehensively prepare the ground; can be used 1 meter 2 meters or 1.5 meters -3.0 meters spacing, such as planted without intercropping, it is appropriate to use 2 meters 2 meters or 3 meters 3 meters spacing.
Spring rainy days are good weather for planting, sunny days after planting to water.
After planting 2-3 years, two or three times a year to weeding plowing; in the dry season to watering drought; the forest is best planted grain, oil or green manure crops, until the forest closed until.
When the pond fir nurturing management, we should pay attention to cut off one of the growth of a weak tip, leaving only one main tip upward growth; the lower part of the crown of the poor growth of the lateral branches as well as in the crown of the internal significant impact on the growth of the particularly large lateral branches, should be cut off in a timely manner.