Cedar planting techniques, how to grow cedar seeds

Cedar seeds. They are usually sown around March in the spring or around July in the fall. Before planting cedar seeds, the seeds need to be collected first, and the seeds are usually picked around September or October, and then screened for storage.

It is also necessary to carry out germination treatment, before spring and March, the cedar seeds need to be soaked in warm water of about 50 degrees for about 12 hours, and then the cedar seeds are placed in moist sandy soil for germination before sowing, when sowing cedar seeds, fertilizer and soil need to be mixed to make cedar seeds grow and germinate healthily, and then pour a small amount of water to make the soil slightly moister, so that the cedar seeds can emerge better and faster. After sowing cedar seeds, the surface of the soil is also covered with a layer of straw, which can better keep the soil moist and make it grow faster and better.

Cedar seeds.

Everyone has seen cedar trees, this kind of green tree is strong, green and tall all year round, and can be enjoyed in any season. The cedar tree is also planted by seeds, the cedar blooms in October and November every year, and the fruit matures the next year, and its seeds are relatively small, so how to grow cedar seeds? What are the methods of growing cedar seeds?

1. How to plant cedar seeds?

Cedar seeds are suitable for sowing in loose and breathable, organic matter-rich soil, and you need to choose a plot before planting, and then turn the soil deep for land preparation, and at the same time apply a certain amount of basal fertilizer, and then the soil is fine, and then you can plant. Cedar seeds should be selected with plump and high-quality seeds, soaked in the seeds for a period of time in advance, and then sown after the seeds are germinated. When the seed is sown, the big head is up, can not be planted back, the seed can not germinate, cedar seeds should be sown shallowly, watered in time after sowing, spring sowing if the temperature is low can be covered with plastic film insulation and humidification, which will help the seed germination.

2. Cedar tree seed planting method.

1. Planting soil.

Cedar is not strict with soil requirements, so it can be planted in many places, but in order to plant well we can choose loose and fertile, well-drained sandy soil, the soil must have good drainage, both water retention and permeability, but also have a certain fertility, which is conducive to seed germination.

2. Seed selection.

The seeds of cedar are relatively small, in order to improve the germination rate, the seeds should be strictly selected before planting, try to use fresh seeds, and select those seeds with full grains and intact seeds, such seeds will be more vigorous and the germination rate will be higher. The aged seeds of cedar cannot be used, and if the seeds are mixed with a large number of impurities, they cannot be used, which will affect the germination rate.

3. Germination and awakening.

Cedar seeds should be germinated before sowing, and the method is relatively simple, that is, the seeds are soaked in cold water, soaked for 4-5 days, and then the seeds are fished out, soaked in potassium permanganate solution for half an hour to disinfect the seeds, and then the seeds are taken out and washed with water, and then the seeds are spread out to dry.

4. Sowing method.

The time of sowing is spring and autumn, and the sowing is carried out under the condition that the temperature is suitable, so that the germination rate of the seeds after sowing will be high. The method of sowing can be used in strip sowing, the sowing row spacing is about 10 15 cm, the seeds are evenly sprinkled in the soil, and then the surface is covered with a layer of soil, and the sowing is completed and watered in time to keep the soil moist.

It is generally propagated by sowing seeds and cuttings. Seeding can take place in mid-to-late March with a sowing volume of 75 kg hectares. It can also be sown earlier to increase the disease resistance of seedlings.

Choose a well-drained, well-ventilated sandy loam soil as the seedbed. Before sowing, soak the seeds in cold water for 1-2 days, sow seeds after drying, and start germination after 3-5 days, which can last for about 1 month, and the germination rate is 90%. Attention should be paid to shade at the seedling stage, and the damage of cataplexy and ground tiger should be prevented.

Annual seedlings can reach 30-40 cm tall and can be transplanted in the spring of the following year. Propagation by cuttings can be carried out in both spring and summer. Spring should be before March 20, and summer is best in late July.

In spring, the annual stout branches of the young mother tree are pruned and treated with rooting powder or 500 milliliters of naphthalene acetic acid, which can promote rooting. It is then inserted in a well-ventilated sandy loam soil, watered well and shaded by a double canopy. In summer, it is advisable to select the semi-lignified branches of the current year as cuttings.

In addition to strengthening the shade, it is also necessary to cover the plastic film to maintain humidity. 30-50 days after insertion, callus can be formed, at this time can be used with urea and potassium dihydrogen phosphate solution, extra-root fertilization.

After the propagated seedlings are left in the bed for 1-2 years, they can be transplanted. Transplantation can be done in 2-3 months. Plants need to be equipped with soil balls and poles.

The row spacing varies from 50 cm to 200 cm. Top dressing 2-3 times during the growth period, generally do not need to shape and prune, only need to thin the diseased dead branches and the shade weak branches at the close crown of the tree. It can be sprayed with benzelide or zebsen zinc to prevent and control gray mold, and sprayed with dimethoate, trichlorfon and other scales and moth butterfly pests.

The soil can be adapted, and it can also grow on clayey loess and barren arid land; However, in waterlogged depressions or places where the groundwater table is too high, it will grow poorly and even die, and it is a shallow-rooted tree species.

Cuttings propagation, cuttings preparation, can be built brick high bed, east-west direction, height 1250px, width, length can be determined according to the amount of cuttings. The bottom part of the bed is tiled with bricks, and there are ventilation holes under the bricks. The bricks are covered with a layer of 500px thick pebbles, and then 500px of river sand is used as a substrate for cuttings.

River sand is sifted, washed with water, and disinfected with a 1% potassium permanganate solution. The cutting time should be in early and mid-March before the cedar germination. The selection and treatment of cuttings, the selection of cuttings, the mother tree of cuttings, and the age of branches are the key factors for the survival of cuttings.

The younger the age of the mother tree and branches, the stronger the vitality and the higher the survival rate of cuttings. Therefore, it is better to choose 1 2-year-old thick shoots on a robust 3 5-year-old young tree for cuttings. If the ears are harvested from the older mother trees, the one-year-old branches with apical buds in the middle and upper part of the sun-facing canopy should be selected, otherwise the survival rate is very low.

When planting cedar seeds, it is best to soak the seeds in clean water for a few days, and then soak them in warm water to promote germination treatment, apply dixon or ferrous sulfate solution to the soil before planting to disinfect, cover the sandy soil after planting, and then cover with a layer of wet straw, when the seedlings are unearthed about 70% of the straw should be uncovered in time to strengthen the management of water and fertilizer.

1. Seed treatment

Cedar sowing is a common propagation method, mainly in the spring equinox period, it is better to soak the seeds in cold water for about 3 days before planting, remove the shriveled empty grains and soak them in warm water for 24 hours, and then put them in the thin potassium permanganate solution for 30 minutes to disinfect, rinse them and dry them.

2. Land preparation requirements

Cedar is more suitable for growing in the deep and fertile and loose slightly acidic soil, before planting to apply an appropriate amount of calcium, magnesium and phosphorus fertilizer to the soil to stir, and then spray an appropriate amount of Dixon or ferrous sulfate solution to play the role of disinfection and sterilization, and cover the surface with a layer of sand without germs.

3. Planting management

Planting management is the basic requirement of how to plant cedar seeds, bury the seeds in the form of strip sowing into the soil, cover with a layer of sandy soil, and add a layer of moist straw, water the appropriate amount of water to keep the soil moist, control the temperature of the environment at about 22, about a month or so can be exposed.

4. Post-planting maintenance

When the seedlings are unearthed about 70% of the time to uncover the rice Yuwu grass in time, when the seedlings grow 3 4 pairs of true leaves when the soil is transplanted, after planting to survive to keep the soil moist, give sufficient sunlight or irradiation every day, fertilization is mainly based on nitrogen, phosphorus and potassium compound fertilizer, a small amount of many times, in order to promote the flourishing growth of stems and leaves.

Just plant trees normally, avoid saline-alkali land, waterlogged land, etc., and don't pay attention to anything else.

Cedars are generally planted in the south from October to November in autumn and February to April in spring. In the north, spring is generally from March to May.