The planting method of walnut tree how to plant walnut tree

Walnut is one of the most popular nuts, which has the functions of delaying aging, enhancing memory, tonifying brain and intelligence, and is even known as "longevity fruit". With the increasing demand for walnut in the market, planting walnut trees has become a very promising planting project.

Planting methods of walnut trees

1. Garden site selection

Walnut has strong adaptability and lax requirements for environmental conditions. Generally 500-1500 meters above sea level, annual average temperature 9: 16 ℃, annual rainfall 800-1200 mm, sandy loam or calcareous soil, PH6.5-7.5. the soil is deep, loose, fertile and can be planted in places with good drainage. The soil that is too sticky, too wet and poorly drained is not suitable for planting. Walnut is a light-loving fruit tree, which requires sufficient light, so it is better to choose the south slope when building a garden in the mountains.

2. Fine land preparation

Soil preparation is an important link to improve the survival rate, growth and development of walnut. The time of soil preparation is usually half a year before afforestation. The method of soil preparation can be selected according to the site conditions of walnut orchard: general slope below 10 degrees or flat land, comprehensive soil preparation and ploughing; slope 10-20 degrees, using anti-slope ladder land preparation. That is, according to the row spacing of the planted plants, the anti-slope terrace is built with the trend of the slope; if the slope is more than 20 degrees, the land is prepared with fish-scale pit. That is, it is built into a small platform at the planting point, and the ridge is built with stones below. At the same time, according to the planting density, the planting pit is generally required to be 1 meter square. When digging the pit, the soil is placed in layers, and the topsoil is delaminated or mixed with farm manure, green manure and crop straw.

How to plant walnut trees

1. Generally, the pit is dug about 1-2 months in advance, and digging in advance is beneficial to the ripening of the land. At this point, fill the topsoil to the bottom and turn the bottom soil to the top.

2. Soak the seedlings in the water added with "plant transplanting agent" for 3-4 hours, replenish the water to the seedlings and let the drugs soak through the roots of the seedlings. It is beneficial to the germination and survival of the seedlings.

3. The grafting film of the grafting part of the seedling was cut with a knife before planting. If it is not removed, it will affect the growth of walnut and cause the seedlings to break easily from here.

4. Don't put fertilizer when planting. To prevent improper use of the seedlings caused by root burning phenomenon, affect the survival, you can wait until the seedlings germinated after isolation fertilization.

5. Backfill part of the upper topsoil into the tree hole, place the seedling in the center of the tree hole, fill the soil firmly, gently lift the seedling upward with your hand, and then step on it again and again for three times, which is beneficial to the stretching of the root of the seedling.

6. Pour in the right amount of water, pour it thoroughly, pour in the right amount of water according to the degree of dryness and humidity of the soil, the soil moisture can be held into a ball with the hand, and the palm can be gently pressed and dispersed. Can not hold into a ball for dry, can not spread out for wet.

7. Take the black film of 60cm square from the top of the seedling and press it with soil around it, which can effectively prevent the growth of weeds, heat preservation, moisturizing, fertilizer preservation and so on.

8. One month after the seedlings have survived, fertilizer ditches can be dug 20-30 cm away from the seedlings. Isolated fertilization methods such as circular fertilization and radial fertilization can be adopted. Do not apply fertilizer to the roots of the seedlings.

9. The fixed stem is to cut off the top at 50-60 cm from the ground after the seedling has survived, in order to dwarf the tree shape and improve the high yield of walnut. 3-5 main branches should be retained when fixing the stem.

Planting time of walnut

There are two kinds of walnut planting period: spring planting and autumn planting. Northern spring is easy to drought, hemp walnut root wound healing is slower, rooting is relatively late, autumn planting is better. Autumn-planted trees sprout early and grow healthily. Finished trees that have been grafted for 3-4 years will have an output of 1% to 20% in the coming year, that is to say, if trees are planted after autumn, part of the investment can be recovered and there will be a better return in less than a year. The specific time of autumn planting is from defoliation to soil freezing (that is, from October to November), and the spring planting period is local soil thawing and planting as soon as possible, usually from late March to late April. Through the author's many years of cultivation experience, the effect of planting before defoliation is better than that after defoliation, and the survival rate is higher.

Pest control

Check whether there is "root cancer" in the roots and stems of walnut trees before planting. The symptoms are red nodules on the rhizome with a soft texture and a smooth surface. The stem is enlarged into a dark brown spherical or flat tumor, lignified and hard. The surface is rough or uneven. In addition, round spot root rot is the main disease of flax walnut tree. The prevention and control methods are as follows: one is to increase the application of organic fertilizer; the second is to prune reasonably; the third is to combine ditch fertilization with 500 times liquid copper sulfate, or stone sulfur mixture, or 75% chloronitrobenzene 800 times solution, irrigating 50-75 kg per tree.

The above are the skills of planting walnut trees summarized by the editor. I hope they can be of some help to you. Planting walnut is not only easy to grow and high yield, but also has many sales ways, and can even be processed into snacks, biscuits, walnut oil and other products for external sale.