What season is the best time to plant a locust tree, and what season is a good time to plant a natio

Transplantation of the national locust tree].

Transplanting is best done when the sap has not yet flowed or has just flowed, and is generally carried out from early February to early March. When taking seedlings, try to leave as many roots as possible and hurt the roots as little.

Planting of the national locust tree].

1. Cut off at the right time.

Every year, after the growth stops in the spring and before the second growing season (usually in early July), the top bend is cut off, and after the new branches are issued, a vertical upward branch is selected as the new trunk.

2. Reasonable pruning.

The so-called reasonable pruning is to retain as many side branches as possible without affecting the growth of the trunk, which is beneficial to the thickening growth of the trunk, accelerates the lignification process, and avoids trunk bending.

Here's how:

1) Horizontal branches and near-horizontal branches are generally not pruned, and they are allowed to prune naturally.

2) The competitive branches that affect the growth of the main head should be cut off in time.

3) Control the growth of other side branches that do not form competitive growth, and cut them in time when their thickness reaches 1 2 of the thickness of the main trunk. Prevent the spindle from being cut too large and increase the trunk height at the same time. If the wound is removed too late, it is not conducive to healing.

3. Dry again.

For 2 3 years of seedlings, when the spring begins to grow, if the seedlings do not have an obvious main head or have a main head but are too skewed, they should be cut off again, and the cut can be selected at the beginning of the deviation. In addition, a callus antiseptic film should be applied to the trimming mouth to promote wound healing.

4. Other measures.

More phosphorus and potassium fertilizers were applied at the seedling stage, and new high-lipid membranes were sprayed on the foliar surface during the growing season, which helped to strengthen photosynthesis, accelerate the lignification process, and prevent the main stem from bending.

In short, if you want to cultivate qualified seedlings of Acacia japonica, the key is to master three points: timely cutting and replacement. Avoid over-pruning.

Maintain a reasonable density.

1-year-old Chinese acacia seedlings can be transplanted, but it is best to plant "stubble", that is, cut off the above-ground part of the seedling, leaving only 5-10cm height, bury a small mound of soil after planting, and then water it thoroughly.

After the fruit is harvested, soak in water for 10 to 15 days, mash the pulp with a wooden stick, rinse, take out the net seed, and store it in the shade.

The first year of transplantation was the rooting stage, and the plant row spacing was 50 60. The annual seedlings of Acacia japonica are transplanted after the leaves fall in autumn. Watering, fertilizing and weeding in a timely manner after germination, and pay attention to the prevention and control of aphids, inchworms and other pests in summer.

Try not to prune to promote the flourishing of roots and leaves, and promote root growth. The second year is the dry period, before germination, cut off the stubble from 5 places in the seedling dry ground, and the cutting should be smooth and not split. And bury the cut with soil, and then fill it with water.

Apply 5000 667 organic fertilizer in early spring to promote germination and growth, and tiller and prune in time. In the peak season of seedling growth, it is necessary to have enough water and fertilizer, and apply urea twice a month, 25 667 each time. And pay attention to the prevention and control of aphids and other hazards.

In that year, the stem height of the seedlings can reach more than 2, the ground diameter is more than 2, and the seedling stem is straight and strong.

When the trunk of the seedling is more than 3, the stem is set at 3 places in the seedling trunk in the early spring of the third year, and 3 side branches are selected as the main branches to cultivate the canopy and enter the crown raising stage.

After 4 5 years of cultivation, it can be cultivated into a high-quality Chinese acacia with a diameter of 4 5, a stem height of 3, and a complete canopy, and reach the specifications of the nursery, or increase the row spacing of the plant (100 60) and transplant it again to continue to cultivate larger plants.

It is best transplanted when the sap has not yet flowed or has just flowed, and is usually done between early February and early March. When taking seedlings, try to leave as many roots as possible and hurt the roots as little.

The locust tree is a butterfly-shaped flower family of the locust family, and the locust tree is also called the national acacia, a deciduous tree, and the tree champion is round. The twigs are green, the skin pores are obvious, and the scales of the winter buds are not obvious. odd pinnate compound leaves, alternate, leaflets 7-17, opposite, ovate to ovate-lanceolate, marginal.

Apical panicles, flowers butterfly-shaped, light yellow-green. The pods shrink into a rosary shape between the seeds, do not crack when ripe, fleshy, hang from the treetops, and do not fall for a long time. The flowering period is from June to August, and the fruiting period is October.

The locust tree can be planted in March, and the survival rate is high.

Growth habits: cold-tolerant, sun-loving, slightly shade-tolerant, not tolerant to dampness and drought-resistant, poor growth in low-lying waterlogged places, deep roots, not strict requirements for soil, more barren and thin, lime and light salute banquet degree saline-alkali land can also grow normally. But it grows best on moist, fertile, deep, well-drained sandy soils.

Uses: strong fast-growing, bright filial piety material hard, elastic, straight texture, easy to process, corrosion resistance, flower buds can be used as dyes, pulp can be used as medicine, seeds can be used as feed, etc. It is also a tree species that is windbreak and sand fixation, timber and economic forest, and is a good shade tree and street tree species in urban and rural areas.

The locust trees in the north generally bloom in spring, about April to May every year, and the flowering period is generally about 10-15 days. In spring, black locusts and acacia bloom in April and May, and in summer, Chinese locust blooms from June to August.

Acacia flower, also known as acacia flower, acacia flower in a broad sense refers to the flowers and buds of leguminous plants, but generally the open flowers are called locust flowers, also known as locust stamens, and the flower buds are called locust rice, often planted on the side of the house and roadside, widely cultivated in various parts of China, mainly in the north, with the Loess Plateau and the North China Plain as the most, generally blooming in the month of each year, and the flowering period is generally about 10-15 days.

Sophora acacia has cold properties, contains a variety of vitamins and minerals, Sophora sinensis has a bitter taste, flat nature, non-toxic, has the effect of clearing heat, cooling blood, hemostasis, and lowering blood pressure, can play a laxative effect, is used for the prevention and treatment of constipation, and is also suitable for colorectal cancer patients caused by blood in the stool, as well as other symptoms such as postoperative blood in the stool. In traditional Chinese medicine, acacia flower is an extremely important medicine. Sophora flowers can be eaten together with honey, which can moisten the lungs and relieve cough, as well as detoxify, stop sores and relieve pain.