Can you take cuttings in spring? How is the Chinese acacia propagated by cuttings?

Cuttings are generally planted in the wax moon.

Cuttings should be selected flat terrain, good drainage and irrigation conditions, fertile soil, deep soil loam or sandy loam soil. It can adapt to neutral, calcareous and slightly acidic soils, and can grow normally on the salt content of mild saline-alkali soils1, but the growth of arid, barren and low-lying waterlogged nurseries is poor.

The time is early to mid-March in the south, and late March to early April in the north. Choose 1 2-year-old smooth root segments with a diameter of 5 10 mm without traces of pests and diseases, cut into 5 7 cm long for later use.

Open the ditch along the furrow, the distance between the ditch is 50 cm, the depth is 5 cm, and then the root section is placed in the ditch with a plant distance of 30 cm, covered with fine sandy soil, watered through the root water, covered with mulch, and the seedlings can emerge in about a month.

The watering of Chinese acacia seedlings should be based on climatic conditions, soil texture and other factors, decide the number of watering, after the emergence of seedlings to the rainy season before watering 2 3 water, before the nursery is frozen 1 time to seal the water, in case of waterlogging in time to drain water.

Acacia can be cuttings.

Acacia branch cuttings:

1. The cutting time is the same as that of burying roots and seedlings, and it can also be slightly earlier.

2. Select 8 20 mm lignified hard branches with a diameter, cut them into 15 cm long cuttings, cut the upper incision flat, 1 2 cm away from the bud pack, cut the lower cut into a 45-degree oblique mouth, 5 mm away from the bud pack, divide the upper and lower ends into 50 roots as a bundle, soak the lower end with 50 mg kg rooting powder for 3 4 hours and then remove it for later use.

3. The land preparation requirements are the same as before, according to the 20 cm 40 cm plant row spacing, the branches are inserted into the soil at an inclination angle of 45 degrees, and the plastic film is covered along the furrow.

Fertilizer and water management of Acacia japonica.

The watering of Chinese acacia seedlings should be determined according to climatic conditions, soil texture and other factors. Under normal circumstances, after the emergence of seedlings to before the rainy season watering 2 3 water, before the nursery freezes 1 time frozen water, in case of waterlogging timely drainage; Before sowing, the seedling land is applied basal fertilizer (mainly organic fertilizer or circle fertilizer) about 3000kg, and in early June, combined with watering, the acre can be top-applied fast-acting nitrogen fertilizer f such as urea) 8 10kg, and urea is applied in 7 and 8 months (it is best to mix with an appropriate amount of compound fertilizer 12 3 times, and the amount of fertilizer is about 30kg each time. After September, no more watering and fertilization will be applied to promote the lignification of seedlings.

National acacia pest control.

The main diseases of Acacia japonica are powdery mildew, canker and rot disease, which can be sprayed with 800 1000 times of 70% methyl tobuzin wettable powder or 600 800 times of 50% antibacterial special wettable powder; The main insect pests are locust aphid, locust inchworm, armyworm, American white moth, etc., which can be controlled with 10% imidacloprid wettable powder N2000 times and cypermethrin EC 1500 times or 3000 4000 times of velamectin EC for control; The weeding of the national acacia nursery is mainly in the seedling of the year, and can be controlled by manual removal or chemical herbicides, and care must be taken not to spray the pesticides on the trunk when using chemical herbicides.

Answer: At present, the propagation method is cultivation and grafting, which is used for gardening and urban greening.

Locust tree cutting time.

The suitable season for cuttings is generally spring, mid-March in the south, and late March to early April in the north.

Method of cutting locust trees.

1.The branches are bent and pruned into 15 cm long cuttings. The incision should be smooth, and the lower incision can be obliquely blocked.

Then soak in rooting water to promote the rooting of the plant, and dry it for later use. 2.When cuttings, the pots and soil used need to be disinfected beforehand, and then the cuttings are inserted into the soil, compacted, and the shoots are fixed.

A good substrate should be selected for Chinese acacia cuttings. It is suitable for growing in loam, or sandy loam soils that are loatherous, loose, well-drained, and rich in humus. It prefers neutral, calcareous and slightly acidic soils, and is tolerant of mild salinity, but not drought and barrenness.

Precautions for locust tree cuttings.

After the locust tree is cutting, it needs to be maintained in a semi-shady, well-ventilated and well-to-bore environment. The first time you can pour it all at once. After that, it needs to be carried out according to the wet and dry conditions of the soil.

In hot weather, it can be moistened with the right amount of water. Before the cuttings of locust trees, there should be a good base fertilizer, mainly fast-acting fertilizer, supplemented by organic fertilizer. After cuttings, there is no need for fertilization at this time, as the roots are very fragile.

Acacia cutting time.

There are two kinds of cuttings of locust trees: old branch cuttings and young branch cuttings, and different ways have different suitable cutting times. Generally speaking, old cuttings are carried out in December, and seedlings are transplanted from the end of March to early April of the following year, while young shoot cuttings are best taken from June to August.

Yellow locust cuttings method.

1.The cuttings of old branches of locust trees are made of high-lignification branches pruned in winter as cuttings, which are generally inserted into the peat soil substrate in December. 2.

The cuttings of the young branches of the locust tree are best carried out in the summer months of June and August. The trimmed semi-lignified branches can be used as cuttings to insert into the soil mixed with perlite and vermiculite.

Precautions for yellow locust cuttings.

After cuttings, a small arch shed should be built. For old branch cuttings, a layer of straw curtain should be covered on the small arch before frost comes, and for young branch cuttings, a layer of shade net should be covered on the small arch.

Maintenance and management of yellow locust after cuttings.

Water often. After the locust tree is cutting, it is necessary to strengthen the management after its first germination, and water the plants frequently to prevent dehydration and atrophy. 2.

Proper fertilization. After the yellow locust is cut and potted, it should be moved to the sunny place of macro infiltration, and thin fertilizer should be applied to promote germination and strong buds.

Acacia fragrant flower is generally propagated by root burial and branch cuttings, but root propagation is the main one.

Select 8 20 mm diameter lignified hard branches and cut them into 15 cm long cuttings, cut the upper incision flat, 1 2 cm away from the bud pack, cut the lower cut into a 45-degree oblique opening, 5 mm away from the bud pack, divide the upper and lower ends into 50 bundles, soak the lower end with 50 mg of rooting powder for 3 4 hours and then remove it for later use. According to the 20 cm 40 cm row spacing, the branches are inserted into the soil at an inclination angle of 45 degrees, and the plastic film is covered along the furrow. After the emergence of seedlings, timely punching, seedlings, sealing soil, maintain the temperature and humidity of the bed soil, remove the plastic film before high temperature, wipe off the side buds, and strengthen fertilizer and water management.

Cuttings can grow to more than 2 meters in the same year.

Acacia chinensis can be propagated by cuttings, but the survival rate is low.

Generally, grafting is used for propagation. The original species of common acacia was used as the rootstock. Grafting can be done by budding and cutting.

1.Bulged budding.

It is a grafting method commonly used in production, which is easy to operate and has a high survival rate. It can be performed in spring, summer, and autumn, with the best period from late spring to early autumn, when the temperature is high, healing is fast, and it is easy to survive. When budding, choose the branches that grow vigorously and have full leaf buds as scion, cut off the leaves and wrap them in a wet towel or soak them in water for bud pieces.

Select 1 2 years old seedlings as rootstocks, and the rootstocks should not be too large. When grafting, first cut the shield-shaped bud from the scion, first cut it diagonally downward from about 1cm above the bud, the incision is about 2cm long, and then cut the bud from about 1cm below the bud obliquely upward. The size of the bud is generally 1 2 cm long and about 0 5 1 cm wide, so that the bud is in the middle of the bud or slightly above.

The rootstock should be cut in the same way as the bud piece at a distance of about 5cm from the ground, and the length of the cut should be just right to fit the bud. Insert the bud pieces into the incision so that the cambium layer is aligned, and finally tie it with plastic film.

2.Cut. Cutting is suitable for coarser rootstocks. It is generally only done in the spring. When grafting, the 2a scion is selected to be 6 10 cm long and has 2 3 full buds.

Smooth shaved surfaces about 3 cm long on both sides of the lower end, with the shaved surfaces straight and beyond the medulla. Then cut a small bevel of 0 5 0 8cm at the end of the back of the long cutting surface. The rootstock was sawn at 2 5 m, the stubble was flattened, and then the rootstock was cut vertically downward along the cortex and the xylem with a splitting knife, and the incision was about 4 cm long.

Insert the scion from the rootstock incision along the middle of the xylem and the phloem, the long cut side is facing the xylem, align with the cambium layer, and the upper part of the cut surface should also be "left blank" 0 3 0 4cm, and then wrap and fix the scion with plastic sheeting, cover the outside with a plastic bag of 15cm and 20cm, and wrap and fix it with plastic rope.

3.Shear the anvil. At 10 15 days after grafting, if the petiole of the bud falls off at the touch, indicating that it has survived, the rootstock should be cut off at lcm above the bud at this time, and the bandaging plastic sheet should be removed.

4.Wipe the buds. After the budding germination, the sprouts emitted from the rootstock should be erased to ensure the growth and development of the graft.

5.Fixed. After the high grafted seedlings grow to a certain height, they are easy to break at the interface under the influence of wind, so when the grafted seedlings grow to a certain height in the current year, they should also be reinforced with wooden sticks.

Generally, the grafting of Acacia japonica is more time-saving and labor-saving, and the material is fast.

The golden-leaved acacia can be cuttings, soaked with rooting agent, and then cuttings, but the survival rate is not too high.