How to manage walnut trees? How to manage walnut trees

1. Soil management.

Walnut trees are mostly planted sporadically, the site conditions are poor, and the soil management task is very heavy, and the masses just ignore this aspect of management, so it must be paid great attention to. Young trees should be loosened soil and weeded, and adult trees should be cut and irrigated, reclaimed, ploughed, improved and matured soil, and maintained water and soil.

1. Reclamation and ploughing: If the walnut trees on the hillside are not tended and managed, they will be barren, and the damage of diseases and insects will be serious, the light ones will be weakened, the results will be bad, and the heavy ones will dry up and die.

2. Remove impurities and retain excellence: In the ditches and depressions in the deep mountain areas, there are many bushes and weeds under the walnut tree, which affects the growth and development and yield of walnut trees, cuts down the shrubs and weeds under the trees, increases the nutrient space, and can make the tree grow vigorously.

Second, post-planting management.

After the seedlings are planted, in order to prevent moisture runaway, the tree tray should be mulched. First of all, the ground is leveled, and when the plastic film is laid, the center of the plastic film passes through the center of the seedling, flattened and paved, and then the surrounding and the rhizomes of the seedlings are pressed and compacted with fine soil to prevent the wind from blowing the plastic film and causing water loss. After the germination of young trees, it is necessary to strengthen the management of soil, fertilizer, water and pests and diseases.

3. Fertilizer and water management.

Both fruiting trees and young trees should be watered with budding water once after the soil thaws and before the tree germinates to replenish the water lost in winter and promote the growth of new shoots and the differentiation of flower buds. Watering at this time can also reduce the ground temperature, delay the flowering period, and avoid the damage of late frost.

In the spring before and after the Qingming Festival, the main application of base fertilizer, frost prevention, moisture protection, white to eliminate overwintering pests and diseases, walnut pests and diseases are relatively few, common rot disease, canker disease, inchworm, scale insects and other pests and diseases, early spring to early summer spray stone sulfur mixture or kill pyrethrin.

Fourth, pruning management.

Plastic pruning is an important technical measure in the cultivation and management of walnut trees, especially for young trees, early fruit trees and early fruiting walnut trees. Reasonable shaping and pruning can cultivate a good tree skeleton, improve ventilation and light transmission conditions, regulate and maintain the balanced relationship between vegetative growth and fruiting, reduce pests and diseases, and promote early, abundant and stable yield of walnut trees.

First of all, the temperature should be controlled throughout the year, and the optimal growth temperature should be between 18 and 25 degrees. During the growth period, it is necessary to water and fertilize frequently to ensure the full growth of the pot root system, promote growth and improve the fruit setting rate. Adequate light conditions should be carried out for no less than 7 hours a day.

Prune regularly, prune side branches, and disinfect them.

Walnut trees like a relatively warm environment, and the most suitable growth temperature is between 18-25 degrees, so they must do a good job of thermal insulation and cooling treatment in management. Pay attention to avoid low temperature frost damage, and apply tree generals to keep warm, so as to promote the healthy growth of plants.

During the growth cycle of walnut trees, it is necessary to apply fertilizer and water frequently to ensure a moist environment for potting soil, which is conducive to the absorption of nutrients by the roots to promote the purpose of growth and robustness. Pay attention to the appropriate amount of fertilizer and water each time, not too much, otherwise it will affect the growth of the fruit.

Walnut trees need sufficient light to grow, and can maintain no less than seven hours of sunlight every day, which is conducive to photosynthesis, which not only promotes the verdant branches and leaves, but also improves the fruit setting rate. It can also reduce the occurrence of pests and diseases, which is conducive to root growth.

Walnut trees need to be pruned in the spring, first prune the side branches, leaving 5-6 strong side branches. Pruning off some old dead branches and overlapping branches of cross branches is not only conducive to plant light transmittance, but also greatly reduces excessive nutrient consumption.

Walnut tree management is divided into four seasons of spring, summer, autumn and winter, and the specific operations are as follows:

1. In spring, before and after Qingming, the management of whitening, base fertilizer, watering, pest control, plastic pruning and so on is mainly carried out.

In early spring, the branches are whitened with the "tree guard", and then sprayed on the whole garden, which can not only disinfect, prevent frost, keep warm and eliminate overwintering pests and diseases, but also restore the early awakening of the walnut tree's life system. For the orchard that has not been fertilized in the previous year, it should be applied immediately after the soil thaws, and the orchard should be watered once if there are irrigation conditions after fertilization, and shallow hoeing should be carried out in time to protect moisture.

There are relatively few pests and diseases of walnut, common ones are rot disease, canker disease, beetle, inchworm, scale insect and other pests and diseases, spray 1500 times of killing inulin when the larvae hatch in early spring to early summer, which can control pests such as beetle, inchworm and scale insects. Continue pruning work for orchards that have not been pruned in the previous year.

2. In summer, before and after the summer solstice, pest control, pruning, weeding and composting are mainly carried out.

Summer is the most vigorous period for walnut trees, during which the growth and development of the tree directly affects the formation of the tree, the early and late fruiting and the level of yield. Therefore, it is necessary to increase the top dressing in summer, generally apply 100 to 500 grams of nitrogen fertilizer (urea, ammonium bicarbonate or ammonium sulfate) per young tree, and can use radial, hole-like, furrow-like fertilization, with a depth of 30 cm, and cover with soil after application. At the same time, according to the flowering and fruiting situation of the orchard, top dressing outside the roots before flowering, young fruit stage, and fruit expansion period, spraying foliar fertilizer + "melon and fruit strong Tiling" to protect flowers, strengthen fruits, promote fruit expansion, and prevent fruit dropping.

Pay attention to the prevention and control of pests and diseases in June and July. In addition, pruning is carried out during the growing season, and the stem height is maintained at more than 3m. Do not prune after falling leaves, otherwise it is easy to cause damage and affect the growth of the tree.

In summer, some short-stalk crops such as soybeans, potatoes, melons, peanuts, etc. can be selected for intercropping, and top dressing, irrigation and drainage, loosening soil and weeding can be carried out at the same time to achieve the goal of double harvest of fruit and grain.

3. In autumn and winter, it is mainly managed by cultivating, weeding, plastic pruning, pest control and so on.

The pruning period and main task are carried out after the walnut harvest and before the leaves turn yellow (mid-September to early November), mainly to thin the over-dense branches and shading branches; retract drooping branches; Adjust the structure of the tree skeleton. In addition, autumn pruning promotes strength, suitable for the pruning of weak trees, old trees, and walnut trees on the slopes. The wound caused by pruning is protected with a "callus antiseptic film" to promote wound healing as soon as possible.

4. Winter is the hibernation period of walnut trees, mainly for the management of repairing weirs, watering gardens, and applying base fertilizer.

During the winter dormancy of the tree, the walnut has a wounded flow, so it is not suitable for pruning. Sufficient irrigation before soil freezing, combined with the application of basal fertilizer in autumn, can promote root absorption, increase the accumulation of stored nutrients, and improve the accumulation level of tree body.

1. Fertilization technology: basal fertilizer is applied in combination with deep soil ploughing, and the basal fertilizer is mainly organic fertilizer, and fertilization is carried out according to walnut yield, site conditions, and tree nutritional status. Generally, 5 kg of organic fertilizer is applied for every 1 kg of walnut buried lead, mixed with an appropriate amount of phosphorus and potassium fertilizer, 20-30 kg per young tree, 30-50 kg per tree at the beginning of fruiting, and 50-80 kg per tree in the full fruit stage.

At the same time, with the application of 2-5 kg of superphosphate, the amount of base fertilizer accounts for more than 30% of the annual fertilizer amount, and the fertilizer should be mixed with the soil when fertilizing, and can not be piled directly in the pit.

2. Watering method: After fertilization, it is necessary to water it in time, which is conducive to the absorption of base fertilizer and accelerates the decomposition of fertilizer. Around November 10th, it is necessary to water a wintering water, and when the topsoil is semi-dry, the rhizome part is buried in the soil and the trunk is whitened, walnut likes moisture, waterlogging resistance, drought resistance is weak, watering is an effective measure to increase yield.

3. Pruning technology: The pruning period of walnut trees is most suitable for pruning after the autumn fruit harvest to before the leaves turn yellow, and it is not suitable to prune one month after the leaves fall and before the budding, these two periods are the peak period of the wound flow, which is not conducive to the wound to heal as soon as possible in the year. Reasonable tree shape is the basis of abundant yield, small and medium-sized crown early solid dense plantation can use natural open shape, sparse trees, scattered trees and intercropping trees should use the trunk sparse layer shape.

4. Pruning at this stage will reduce the leaf area and affect the nutrient accumulation of the tree, but at this time, the tree has no damage flow, which is suitable for adjusting the skeleton structure of the tree, mainly pruning the large branches, thinning the over-dense branches, diseased branches, shading branches and back branches, and retracting the drooping branches. Other pruning should be done until the next year before bud break.

4. Prevention and control methods of pests and diseases: after the fruit is harvested and before the leaves fall, the depth is 30-40 cm, and the larvae of the walnut limb moth in the soil are picked up and eliminated intensively. At the end of autumn, the bark of the susceptible tree is scraped off with a knife and the liquid medicine is applied to prevent and control dry rot, canker and other diseases.

5. Whitening the trunk can effectively prevent and control pests and diseases such as walnut rot disease, clouded longhorn beetle and walnut tumor moth, and its formula is: sulfur powder, lime, water according to 1:10:

Formulated in a ratio of 40. Burning or burying diseased branches, leaves, and fruits can prevent and control pests and diseases such as walnut small gilding insects to a certain extent.

Now walnuts are indeed sold more expensive, more than 20 yuan a catty, some of the better ones need more than 30 or 40 yuan, so that there will be a lot of people to plant, after all, he can bring better economic benefits, but planting is inseparable from technology, especially in the early management, mid-term management, later management, each management needs to be refined, otherwise it is easy to have problems, for the initial stage we will take a look at how to manage. <>

The initial stage is mainly the growth stage, so we should pay attention to one point in fertilization. The initial stage is mainly weeding and fertilization, after all, walnuts need to grow in the early stage, and they need to grow to a certain height and a certain width, so that it is possible to hang fruit. If there are weeds all around when planting walnuts, then it will affect the lighting of walnut trees, and it is important to manage lighting in the early stage, weeds must be removed, if those weeds are higher than the walnut trees, then walnuts will be difficult to grow.

If there are some big trees around, they must be cut down in time to avoid the walnut tree not being able to photosynthesize. <>

Fertilization is also very important, for organic fertilizer, then it is best to put a little more organic fertilizer per mu, for example, a walnut tree put 8 kg of organic fertilizer, this is the bottom fertilizer can better let the walnut tree grow. After that, compound fertilizers also need to be added, such as potassium fertilizer, phosphate fertilizer, and nitrogen fertilizer, which are all nutrients that walnut trees need in the early stage.

Watering management should also be indispensable. Whether it is a walnut tree or other tree species, then there needs to be a certain amount of water, if the water is insufficient, then it will lead to dryness, yellowing and even unfavorable growth. Lack of water can cause walnut leaves to turn yellow and grow stunted.

It is also necessary to carry out some pruning at the initial stage, especially for some that have turned yellow, or have encountered some diseases, they should be cut off and not kept for fire treatment. Leave some good branches for it to continue to grow, so as to be able to have a good harvest in the future, laying the groundwork, because some bad branches have been yellowed and diseased, only waste nutrients, cutting off is a good choice.

At the beginning of planting walnut trees, we should water more, increase the amount of light, and remove grass so that the walnuts will grow well.

In the early stage of walnut trees, you should water more and fertilize more, and after watering, you should also do a good job of insect control, and you should also prune off some leaves that do not grow well, so that walnut trees will grow particularly well.

At the beginning, you should water more and fertilize more, and at the same time, you should ensure that the sun is shining, so that you can grow better, and in the later stage, you should also clean the surrounding grass.

Hello dear, very happy for you, how to manage the walnut tree during the fruiting period. 1.Water and fertilizer management method of walnut trees in the fruiting period The fertilization of walnut trees in the fruiting period is carried out in spring and autumn, and the radial fertilization method is adopted.

Starting from the different directions of the canopy edge, dig 4 8 radial fertilization ditches in the direction of the trunk, and the location of the fertilization ditch should be changed every year and move outward with the expansion of the canopy. Generally, 50 60 kg of organic fertilizer is applied to each tree in autumn, and nitrogen, phosphorus and potassium special fertilizer is applied to each tree in spring. If the soil is dry and lacks water during the fruiting period, the fruit setting rate is low, the peel is thick, and the kernel development is not full. If you do not irrigate after fertilization, you will not be able to give full play to the fertilizer effect.

Therefore, irrigation should be carried out at the right time during flowering, rapid fruit growth, fertilization and winter drought. 2.Artificial pollination of walnut trees in the fruiting period and fruit thinning Artificial pollination is generally carried out in April and May when the male inflorescences begin to pollinate individually, collect the male inflorescences of walnuts at 8 10 o'clock in the morning on a sunny day, put the pollen in a gauze bag, hang it on the bamboo pole, and the person holds the bamboo pole in the forest while walking and shaking the pollen in the pollen bag and scatters the pollen in the pollen bag on the female flower.

It's a pleasure for Minma, I wish you a happy life.

First, the planting method of walnut trees.

1. Soil: If you want a good growth and development of walnut trees, suitable soil is indispensable, and the fertility of the soil will directly affect the growth rate and fruiting rate of fruit trees. Properly cultivate the soil, increase the water content in the soil, enhance the permeability of the soil, improve the fertility of the soil, promote the growth of walnut trees, and improve the yield and quality.

2. Pruning: Reasonable pruning is the key factor to make walnut trees produce high yields, if pruning after falling leaves or in the budding period, it is not conducive to wound healing, resulting in the tree body is very prone to pests and diseases. Try to put the pruning time after harvesting, pruning the tree at this time can effectively adjust the structure of the tree, although it will have a certain impact on the accumulation of nutrients, but it is not a big problem.

3. Fertilization: The growth of walnuts has a greater demand for nutrients, and the basal fertilizer is applied when the soil is cultivated and cultivated, and the basal fertilizer is fully mixed with the soil to enhance the fertility of the soil. In the later stage, according to the growth of the tree, weather changes and the degree of nutrients in the soil, appropriate topdressing.

Fertilization should not be done by pouring the fertilizer directly into the pit, be careful to mix well with the soil, it may burn the roots.

4. Watering: watering work is necessary, after planting, it is necessary to water a fixed root water, and after each fertilization and top dressing, it is necessary to replenish water to promote the absorption of fertilizer nutrients by tree roots. Walnut is a water-loving crop, to ensure the water required in the growth process of walnut, in case of continuous dry weather to timely replenish water, to prevent walnut water shortage, adverse effects on growth and development.

2. Management of walnut trees.

1. Pests and diseases: Walnut trees have strong disease resistance, and there are not as many pests and diseases as other crops, but sometimes they can cause pests and diseases due to improper management. Failure to deal with pests and diseases in a timely manner can lead to stunted growth and development or death.

Spray pesticides regularly for prevention, inspect the orchard, determine the disease according to the incidence and then treat the symptoms, and do a good job of disinfection and cleaning of the orchard after harvesting.

2. Overwintering: walnuts like moisture and waterlogging but not cold-tolerant, after harvesting, they also need to do a good job of wintering to prevent frost damage, and the lower part of the tree body is painted white and brushed dry before winter, which plays a role in heat preservation. In case of heavy snow and snow, remove the snow around the tree in time.

Covering with plastic film increases the surface temperature and prevents frost damage.