How walnut saplings are broken tree varieties

From the general direction, walnuts can be divided into four main varieties, namely autumn walnut, hemp walnut, iron walnut, and cotton walnut. So how can it be simply distinguished, from its surface texture is the most direct way to observe and distinguish.

Autumn walnut, belongs to a kind of wild walnut, the most obvious feature of its surface is that there are six flutes, this walnut is generally used to play, that is, to hold in the hand to play, ** generally higher than edible walnuts, but belongs to the relatively low-end walnut.

Hemp walnut belongs to semi-wild walnut, is the most important choice of walnut as a cultural walnut, but also a relatively high-end walnut, there are many different varieties, can be divided into Pan Long pattern, tiger head, Nanjiang stone, Gongzi Mao and other varieties, hemp walnut is generally more round, there is a feel. Holding hemp walnuts in your hands helps to dredge the meridians and massage the acupuncture points of your hands to regulate qi and blood.

Iron walnut is a southern walnut variety, with a peanut-like texture on the surface, thick and heavy skin, and is generally used for low-end cultural games.

Cotton walnut is generally used to eat walnuts, its surface texture is very shallow, relatively flat, and the skin is thin and thick. Cotton walnuts have a good effect on health and brain nootropics, and regular consumption helps brain metabolism and brain puzzles.

First, look at the color of the surface of the sapling, there is a dark yellow, some are blue and feel bright, and some are slightly white, depending on the seedling to judge the variety later, second, look at the root system, this verbal expression is not good, third, there are conditions to see the leaves and smell the fragrance.

Those who have experience or long-term seedlings can judge according to the above or their own experience, the variety and whether it is a local seedling!

Inexperienced people are advised to visit a few more places and draw conclusions.

You can contact me to check it out with me.

Walnut is not a tree species, it is a fruit tree.

Walnut cultivation techniques.

Walnut has strong adaptability, few pests and diseases, labor-saving management, convenient fruit storage and transportation, and long life. Walnut likes temperature and light, and has strict requirements for water, especially in the growth period of new shoots and fruits, and needs sufficient water, and should be planted in sandy loam soil with loose structure and good water retention and air permeability. The growth cycle of peach is divided into budding stage, leaf development stage, flowering stage, fruit hard core stage and fruit ripening stage.

Fertilize. Lime should be applied before planting acidic soil, and attention should be paid to deep turning of the soil or deep turning of the tree tray, so as to facilitate early fruiting, high yield and stable yield of young trees. Walnut fertilization rate is:

1 to 2 year old young trees, annual nitrogen application. Phosphate fertilizer and potassium fertilizer should be applied appropriately according to soil content; Adult tree base fertilizer plants are applied with 150 to 250 kg of manure. Phosphate fertilizer to, ash fertilizer to 5kg.

Top dressing is applied 2 to 3 times a year (before germination, after flowering and during the hard core stage of fruits), and nitrogen fertilizer is applied 1 to 1 per plant.

1. Base fertilizer. The basal fertilizer should be done early, after harvest and before the leaves fall, and 100 to 200 kg of high-quality organic fertilizer should be applied to each adult tree.

2. Top dressing. The suitable period of top dressing is three periods of pre-flowering, young fruit expansion and fruit hard core, and generally each plant is applied to 1 kg of Tianji brand phosphorus nitrate fertilizer each time.

3. Foliar spraying. The spraying period is the flowering stage, the new shoot speed long-term, the flower bud differentiation stage and after harvesting, and the commonly used fertilizer spraying types are to boric acid, to 1% ammonium molybdate, to copper sulfate, etc.

Walnut is a more temperature-loving tree species. Walnut seedlings or large trees are suitable for growing in areas with an average annual temperature of 8 to 15, an absolute minimum temperature of not less than minus 30, an absolute maximum temperature of less than 38, and a frost-free period of more than 150 days. Young trees "draw" or freeze to death under minus 20 conditions; Although adult trees can tolerate temperatures of minus 30, in areas below minus 28 and minus 26, branches, male flowers and leaf buds are susceptible to frost damage.

When the absolute minimum temperature reaches minus 37 to minus 34, walnut trees do not bear fruit and grow in the form of small trees or shrubs.

After the walnut leaves are unfurled, if it encounters a low temperature of minus 4 to minus 2, the new shoots will be frost damaged; When the temperature drops to minus 2 to minus 1 at the flowering and young fruit stages, the yield is reduced by freezing. When the temperature is exceeded, the fruit is susceptible to burns, so that the kernels cannot grow.

Temperature is closely related to latitude and altitude, so the vertical distribution and suitable range of walnut in different latitudes are different. For example, walnuts grow well at an altitude of 700 to 1,000 meters in Luonan, Shaanxi; Shanxi, Hebei and other places take the altitude below 1000 meters as the suitable area; In the southern part of Liaoning Province, it grows well below 500 meters above sea level.

<> peach tree is not a walnut tree. Although both walnut trees and peach trees have a peach character, they are not related, walnuts belong to the Juglans family, and peaches belong to the Rosaceae family. Peach is a plant of the Rosaceae family, Prunus, is a small deciduous tree whose fruit is used as a fruit, the flowers can be ornamental, the fruit is juicy, it can be eaten raw or made into preserved peaches, canned food, etc., and the kernel can also be eaten.

Walnut tree, also known as walnut tree, belongs to the Juglans family, and the varieties are divided into wild pecans and artificially grafted improved varieties of walnut. Native to Central Asia, it is cultivated all over China, and generally chooses to plant artificially improved varieties, because the improved varieties have higher yields and thinner shells than wild varieties, commonly known as pickled walnuts. Walnuts, along with almonds, cashews and hazelnuts, are known as the four major nuts in the international market.

First, the walnut saplings are treated, then a pit is dug in the ground, and finally the soil is filled and buried.

Prepare some walnut trees first, find a piece of fertile soil and plant them, then water more and fertilize more, and spray pesticides at a time according to the growth cycle of walnut trees.

First of all, you need to choose sandy loam soil for planting, and the second is to dig a pit, apply base fertilizer in the pit, and then you can plant walnut seedlings into it.

Method of growing peach seedlings from peach pits:

1. For seed selection, first remove the pulp on the outside of the peach pit, and then clean the peach pit. Pick the peach pits left over from the summer and dry them, they are large and whole, moldy, insect, incomplete, and cannot be used.

2. Seed treatment: Put the seeds in 70-80 water, stir constantly with a wooden stick until the water cools, and let the seeds heat evenly at high temperature. Rinse with water within 24-48 hours to prevent moldy seeds.

3. Sowing seedlings: Use cardboard, cans, canned bottles, etc., clean the container, and make some small holes at the bottom to prevent the roots of the seeds from rotting. Peach trees are very adaptable and can be fertilized with a spoonful of sauce residue or superphosphate on the soil in the field or on the side of the road.

Before and after the Qingming Festival, you can spread a small stone on the potted plant, mix the fertilizer with the soil, and then fill it with a pot, not compacted. In a small jar, put 2-3 large jars, put 2-3 deep seeds in one jar, then cover the container, let the soil harden naturally, and water.

After sowing, water well for the first time, then pour the seeds from the container into a container filled with water, allowing the container to absorb water from the bottom until the soil is completely moist), water the next day, and then water at regular intervals. Seedlings germinate in 2-3 weeks.

4. Pruning: The seedlings after sowing are called real seedlings, and the seedlings that do not need to be grafted can open for a long time, but they need to be patient. If it's a potted plant, it will take longer.

At the same time, potted plants should also be pruned in a timely manner to ensure that the height is appropriate and the tree shape is good. The pruning period is divided into two phases: winter and summer. In the early fruiting period (3 4 years), summer pruning measures such as bud wiping, topping, and twisting should be taken to maintain the balance of the tree body. In the full fruiting stage, it is necessary to mainly shorten the branches, remove the overly dense and strong branches at the apex, improve the light between the shoots, and renew the weak branches in a timely manner.

Identification method of true and false grafted walnut seedlings:

Do not use the scion of improved seeds, but directly use the seedlings of the nursery and then the scion for grafting seedlings, so that the survival rate of grafting is indeed improved, and the color of the scion and the rootstock is not the same after survival, even if the professionals are difficult to distinguish the true from the false after the leaves are fallen.

The grafting of excellent walnut varieties is normal from the ear nursery of improved varieties, and the grafting is carried out with the picking, and the walnut varieties are less harvested in the ear nursery, which is more expensive.

Although some people spend money to buy new varieties of scion, they also use the deflated buds on the unusable autumn shoots and secondary shoots for grafting, and the quality is greatly reduced. Some walnut seedling producers directly use a bud grafting knife to deeply rectangular, shield-shaped or "T"-shaped scars around the top side bud of the rootstock to make the shape of the grafted interface heal, and the side buds grow into plants and pretend to be grafted seedlings; Although some use excellent mother tree scion grafting, but the bud does not survive, so a sprout is selected near the grafting point to cultivate seedlings.

Walnut trees are split by roots, and the roots of walnut seedlings are inspected when they are bought, and there are traces of knife edge and splitting and plastic film binding for grafted seedlings.

None, it belongs to the native seedling pecan. The results are late and the shell is thick and small.