On the issue of jujube trees that have just been planted for one year

Now the jujube tree should germinate, and according to the symptoms you described, it may be the root rot of the jujube tree. Jujube root rot, also known as mushroom root rot, can cause root rot in the underground part, withering in the aboveground part, yellowing and early fall of leaves, and finally leading to the death of the whole tree.

1. Symptoms of poor growth such as yellowing and early fall of the leaves of the affected trees, or stunted leaf development, small leaf deformation, sparse branches and leaves, etc., finally lead to the death of the whole tree. The rhizome and root cortex of diseased trees rot, and there is often a white fan-shaped bacterial film between the cortex and the xylem. The xylem is white spongy and decaying, with a mushroom scent.

At the same time, dark brown or black rhizomes can be seen in the cortex of diseased roots, on the surface of diseased roots, and in nearby soils. In summer and autumn, clumps of small honey-yellow mushroom fruiting bodies grow on decaying roots and on the ground nearby.

2. Pathogenic bacteria overwinter in the roots of diseased trees or in the soil nearby. When the environmental conditions are suitable, small honey-yellow mushrooms can be formed, which are spread by air currents and invade from wounds or stumps. The pathogen in the root tissue extends within the cambium to the root neck and then to the taproot and other lateral roots.

Germs on dead roots can spread to neighboring tree roots. Robust trees are still resistant to infestation; Weakened trees are susceptible to the disease. The low-lying terrain, heavy soil clay, and heavy rain and water accumulation are all conducive to the occurrence of this disease.

3. Prevention and control methods.

1. Strengthen management and increase fertilizer. After rain, the stagnant water is removed in time to promote the vigorous growth of the root system and improve its disease resistance. Jujube orchards can also be planted with some green manure crops such as black beans and alfalfa to improve soil properties and improve soil fertility.

In the rainy season of summer and autumn in August, it is necessary to collect the fruiting body of the pathogen (honey-yellow mushroom) in time to reduce the infection of the disease**.

3. Dig an isolation ditch with a width of 60 to 80 cm for diseased plants and cut off the roots to prevent expansion to the periphery. The root of the disease should be cut off and burned in time, and the wound should be disinfected and then protected by Bordeaux solution. The soil around the diseased plant can be watered and disinfected with carbon disulfide to inhibit the growth of pathogens.

1. The international and domestic demand for fresh food and drying of jujube is very large, and the 100 jujubes sold in the international market come from China, and the output of jujube in China is far from meeting the market demand at home and abroad;

2. In recent years, due to climate change, the precipitation in the ripening period of jujube has increased, which has had a great impact on the yield and quality of jujube.

3. Jujube is a temperature-loving and light-loving tree species, and the climatic conditions of Xinjiang, especially those in eastern and southern Xinjiang, are fully suitable for jujube cultivation. Due to the superior light quality, Xinjiang jujube has a strong color, bright color, high sugar content and good quality compared with mainland jujube.

4. The leaders of the autonomous region and the XPCC attach great importance to the development of the jujube industry. In November last year, the regional party committee issued a document on speeding up the development of Xinjiang's characteristic forest and fruit industry, proposing to give prominence to the development of pear, jujube, walnut, grape and other dominant tree species, of which the area of jujube should be developed to 2 million mu. Driven by the national policy of returning farmland to forest, the planting area of jujube in Xinjiang has expanded rapidly and has a strong momentum of development.

There are many varieties of jujube suitable for planting in Xinjiang, such as Hami jujube planted in eastern Xinjiang, gray jujube planted in Korla area, Jun jujube and juju jujube in Hotan area, Zanhuang jujube in Aksu area, as well as winter jujube and Jinchang No. 1.

According to incomplete statistics, the average income of jujube farmers in Hami, Hotan, Korla and other places is more than 10,000 yuan per mu, and the economic benefits are very significant.

At present, there are prominent problems in the development of Xinjiang's jujube industry.

1. With the rapid development of jujube production in the autonomous region and the XPCC, most of the jujube seedlings were introduced from the five provinces of Hebei, Shandong, Henan, Shanxi and Shaanxi in the Yellow River Basin.

2. Due to the lack of technical measures in the process of jujube seedling planting, the survival rate of jujube trees introduced in various regions is relatively low, generally around 50, and even less than 10, which has caused relatively large losses to jujube farmers;

3. The management measures after the jujube seedlings survive are not in place, the pruning and shaping technology at the seedling stage cannot keep up, and the technical training is not enough, resulting in low yield and poor quality of some jujube orchards;

4. The nutritional value and medicinal value of jujube are extremely high, while vigorously developing fresh fruits and traditional dried fruits, the deep processing products of Xinjiang characteristic forest fruits and the storage and preservation technology of fresh fruits are obviously lacking, and it is urgent to cultivate and introduce large-scale jujube processing enterprises;

5. Different jujube varieties have different requirements for microclimate, such as Hami jujube has the best performance in Hami area, Zanhuang jujube performs better in the 10th regiment of the first agricultural division, and the planting is ideal in the 48th regiment of the third agricultural division. Therefore, jujube planting must not be blind, and it is necessary to do a good job in testing and demonstrating.

It is suggested that all counties and cities in the autonomous region, as well as all divisions and regiments of the Corps, should not blindly introduce jujubes, and in the process of experimental promotion, combine jujube planting with product processing, and combine planting varieties with regional characteristics, so as to scientifically and rationally develop the jujube industry.

Hetian convenience network.

Friends jujube tree thorn seedlings belong to the wild category, and grafting money does not need to be fertilized. Identification of survival: You can dig up the roots, check if the roots of the sapling have turned dark brown, have a moldy smell, cut it into light brown, if so, it means death.

Dead seedlings are a normal thing, and there is a high probability of freezing to death last winter. After fertilization, the lignification of thorny seedlings is too late.

The roots of the jujube saplings are generally gray-brown, this situation is normal, you can go to the root system of the jujube tree to see if he has humidity, if there is normal, in the branch to see if there is humidity, if there is a very normal sapling, don't worry about the jujube tree is like this.

This year's planting is not yet germination time, if last year's planting has already germinated.

<> jujube tree is a deciduous shrub or small tree plant in the Rhamnoaceae family that is cultivated throughout China. The flower is small and honey, and it is also a nectar source plant. Let's take a look at the results of jujube seedlings in a few years, as well as the planting methods of jujube saplings.

Jujube trees are different in varieties and regions, and they are also different. Generally, seedlings sown with seeds (jujube pits) take about 7 years to bear fruit. If you use the seedlings that sprout from the roots of the jujube tree, you can bear fruit in three or four years. If the saplings are grafted, that.

In two or three years, it will bear fruit.

Dig a planting pit with a length and width of 60 cm, apply foot fertilizer, fill the soil, water, and wait for planting.

In early winter, planting jujube trees with a high degree of lignification of high-quality nursery seedlings is better, the nursery land should be watered once before the seedlings, the seedlings require a complete root system, the length of the taproot is more than 30 cm, less damage to the side roots and fibrous roots, and the seedlings should be planted with transportation.

Dig a tree pit at the planting point, backfill a part of the soil, and then put the seedlings into the pit to straighten and fill the fine wet soil, and lift the seedlings slightly upwards to make the root system and then fill the soil steadily.

The planting depth requires the root diameter to be level with the ground or slightly deeper, the deepest is not more than 5 cm of the root, and a small mound of soil is cultivated after planting.

Freeze water once before winter, in late November.

From the end of November to the beginning of December, the seedlings should be pushed down to the south to prevent the soil embankment from changing greatly and causing sunburn above the roots of the seedlings.

When overwhelming, can not be bent, because the seedlings are brittle and hard, easy to cause cracks or breaks, when overwhelming, should first be cultivated on the south side of the seedlings with a height of 20 cm of slope, the seedlings are gently pressed down on the inclined platform, and then covered with 20 cm of moist fine soil.

Before germination in spring, water is poured with germination water, and then covered with plastic film to protect moisture, increase ground temperature, and improve the survival rate of seedlings.

Jujube seedlings generally bear fruit in the second year after planting.

As the saying goes, "peaches have three plums and four pears for five years, walnuts and persimmons for six or seven years, mulberry trees can feed silkworms for seven years, and jujube trees can be sold for money." It means that the fruiting period of the jujube tree is short.

If the jujube seedlings are grafted, they will bear fruit in 2-3 years.

If you use the seedlings that sprout from the roots of the jujube tree, they can bear fruit in 3-4 years; Generally, seedlings sown with seeds (jujube pits) take about 7 years to bear fruit.

Extended information: 1. The problem of excessive prosperity of jujube trees: open the armor to solve. For strong trees in the full flowering period of jujube and nail opening, it can effectively inhibit the downward transport of organic nutrients and improve the nutrients of branches, leaves and flowers.

The first opening of jujube trees starts at 10-20cm on the ground, and is peeled deep into the xylem and width with a knife ring; Strong trees should be wide and weak trees should be narrow. When peeling, no residual skin is left, and insecticides are applied to protect the nail mouth after peeling.

2. The problem of jujube trees being too weak: top dressing is solved. Top dressing and watering at the first flowering stage is a key part of improving fruit setting rate and flower and fruit preservation.

Top dressing is carried out from late May to early June. Fertilizer amount, nitrate phosphorus fertilizer or special fertilizer for fruit trees. Fertilization method, shovel hole 2 4 direct point in.

For fertilization sites, it is advisable to apply it vertically below the edge of the canopy. Water in time after fertilization, and then loosen the soil to protect moisture. Jujube orchards with drought and no watering conditions should be topdressed before rain or reduce the amount of fertilizer as appropriate.

3. The problem of over-density of jujube trees: thinning branches to solve. The jujube seedlings should be pruned for the first time during spring germination, and the first summer pruning should be carried out at the peak and late flowering stages to erase the useless shoots and other branches that consume the nutrients of the tree from the trunk and inner trunk branches.

Hello, I'm glad to answer for you It depends on what kind of jujube tree you have, and generally speaking, ordinary jujube trees do not have saplings to bear fruit in the same year, most of them will bloom and bear fruit after 3-5 years, and if they are grafted or pruned, they may bear fruit in the same year. Fruit ripening in September [Ask the player, wish] Honored to serve you, I hope it will be helpful to you.

It depends on what kind of jujube tree you have, and generally speaking, ordinary jujube trees do not have saplings to bear fruit in the same year, most of them will bloom and bear fruit after 3-5 years, and if they are grafted or pruned, they may bear fruit in the same year. The fruit ripens in September.

It depends on what kind of jujube tree you have, generally speaking, ordinary jujube trees do not have saplings to bear fruit in the same year, most of them will bloom and bear fruit after 3-5 years, and if they are grafted or pruned, they may bear fruit in the same year. The fruit ripens in September.

Grafting jujube trees can bear fruit in 2 to 3 years.

Cultivation technique: jujube tree warm temperate positive species. Likes light, good dry climate.

Cold-tolerant, heat-resistant, and drought and flood tolerant.

The soil requirements are not strict, except for swamps and heavy alkaline soils, plains, sandy lands, valleys, and mountains can grow, and the adaptability range to pH is between, and the best growth is in fertile slightly alkaline or neutral sandy loam soil.

The root system is well developed and the germination and tillering power is strong. Resistant to smoke. Not resistant to water mist.

Application of the variety:

1) Dwarf rootstock: This kind of dwarf fruit tree refers to the jujube tree that uses the rootstock with dwarf properties to control the development of the tree. According to the utilization of rootstock, dwarf jujube fruit trees can be divided into two types: self-root rootstock and intermediate rootstock.

Self-rootstock refers to a jujube tree in which the variety is grafted onto a dwarf rootstock with its own root system. The intermediate anvil refers to the fruit tree that does not have the root system of the dwarf anvil itself, and the base anvil with the root system in the lower part is still the anvil of the tree, but only uses the dwarf branch as an intermediate to control the upper crown. Self-rooting rootstock fruit trees are easy to develop weak due to the small and shallow root system of dwarf rootstock, such as Taiwan green jujube, Yunnan thorn jujube, Lado jujube, etc., which are widely used in southern China.

Dwarf anvil fruit trees are mainly used in the form of intermediate anvils in southern China.

2) Short-branched trees: This type of dwarf jujube tree refers to the tree with dwarf characteristics of the upper variety. Short-branched trees have developed rapidly in southern China in recent years because they can still use anvils for propagation and dense planting, so as to adapt to poor climatic and soil conditions.

Especially in Guangxi, Guangdong, Yunnan, Sichuan and other places. A large number of wild sour jujubes are not used, but Yunnan thorn jujube and Lado jujube.

3) Dwarf rootstock short-branched trees: This type of dwarf fruit tree refers to fruit trees grafted on dwarf rootstocks with short-branched varieties. Due to the double dwarfing of the aboveground and underground parts at the same time, this type of tree is smaller, which is suitable for highly dense planting production and cultivation and potted bonsai ornamental fruit trees, such as potted jujubes.

It takes 3-5 years for planting to blossom and bear fruit.

2. Grafted or pruned may bear fruit in the current year. The fruit of the jujube tree ripens in September.

3 planting methods:

1. Choose a good cultivation garden The adaptability of jujube trees is relatively strong, and the requirements for soil conditions are not strict, and all localities can make full use of wasteland and saline-alkali land for cultivation. However, in order to achieve higher economic benefits and produce high-quality, pollution-free products, we should try to choose the air, water, soil and other environments that are not polluted, the terrain is flat and open, the drainage conditions are good, the soil permeability is strong, the aeration performance is good, the groundwater level is high, and the soil is fertile. To plant jujube trees in mountainous and hilly areas, sunny slopes with deep soil layers should be selected, and shady slopes should not be planted.

2. Choose a good planting variety There are many varieties of jujube trees, and a high-quality variety must have good tree potential, strong resistance to diseases and insects, fruit crack resistance, good fruit shape, good fruit color, high nutrient content, and good taste. At present, the excellent varieties used for drying are Jinsifeng, Jinsi honey, seedless red, seedless No. 1, seedless No. 3, Zanhuang jujube, etc. Among the early-maturing varieties, the excellent varieties used for fresh food include early crispy king, Jingwei fresh jujube, early-maturing pear jujube, etc., and the excellent varieties used for processing include pear jujube, Zanhuang jujube, etc.; Late-maturing varieties are mainly used for fresh food, and high-quality varieties include Jingwei Daxue jujube, winter jujube, etc.

New and special varieties, there are peculiar fruit shape of Mopan bezoar, gourd bezoar, etc., tree shape peculiar fetal red, dragon beard jujube, etc. Jujube farmers can introduce and cultivate according to their needs, or choose high-quality varieties of scion for grafting and cultivation.

3. Choose a good cultivation mode First, dwarf dense planting type cultivation, mainly suitable for varieties with early fruiting and small tree type, and the plant row spacing should be 2 meters 3 meters or 3 meters 2 meters. The second is intercropping cultivation, which is mainly suitable for varieties with medium or large tree type and late fruiting, with a row spacing of 8 10 meters. Plant spacing 3, 5 meters.

Other crops can be interplanted between trees in the early stage.

Fourth, choose a good cultivation time Jujube trees can be cultivated throughout the dormant period from the fall of leaves to the germination of the second year, which is divided into spring planting and autumn planting. According to many years of cultivation experience, with 2-year-old and more than 2-year-old root tiller seedlings planting, spring planting is immediately watered, and the survival rate is easy to reach more than 90, while autumn planting is difficult to reach more than 90 even after watering. However, the survival rate of autumn planting can reach more than 70 even without watering, while the survival rate of spring planting is significantly worse than that of autumn planting without watering.