Cultivation techniques of Spiraea przewalskii Reproduction method of Spiraea

Pink embroidery chrysanthemum to long, colorful, dense and colorful inflorescences, excellent ornamental effect. How to cultivate the pink Spiraea? What are the methods of reproduction? Let's learn about it next.

1. Cultivation methods of Spiraea chinensis

1. Soil preparation and bed making: deep ploughing and loosening of the soil, generally probing the seedling ground into 15~20era, meticulous leveling, fertilizer pressure, and removal of sundries. The soil should be disinfected when making the bed. Set up a Reed shade willow on the planting bed, add a layer of base fertilizer (farm manure) to the bottom of the bed if possible, and at the same time, mix the fertile loam with river sand at 1:1 to make the upper layer of the seedbed, and then water the seedlings thoroughly.

2. Cuttings and cuttings: collect young shoots of the same year, from mid-late June to mid-early July, tufted hardwood cuttings directly from the rhizome and young cuttings extracted from hard branches, cuttings length 10-12cm, no terminal bud, cuttings with 4-5 buds, ear diameter more than 0.2em, keep upper 2-3 nodes leaves, cut into 8era long leaves, leave upper 2-3 leaves, and remove lower 2-3 node leaves and upper spikes. There are full buds in the lower part of the soil, which are sprayed with water after insertion, so that the cuttings are closely combined with the substrate.

3. Shading peritoneum: in the open field, it is necessary to build a shading shed with a shading surface of 75%. If it is planted under the forest, the trees in the forest can be used for shade. The nursery stock is inserted on the nursery bed, covered with plastic film, arched and 60em arched.

4. Transplant: transplant in the following spring. In general, 2Mel combined with transplantation in March, usually 2Mel combined with transplantation in March, to separate tillering strips from the mother plant, and after proper pruning, it can also fertilize the soil before ramet, so as to promote the mother plant to sprout more. When transplanting, dig the hole first, water it, transplant it with water, and cover it with soil. If it is planted in the greenhouse, it can be planted at any time until autumn, and it can also be planted at the same time as it is planted in the second year.

5. Maintenance and management: in order to improve the survival rate of planting, a small section of root system should be retained when the seedlings are raised, and the water evaporation of the tree can be reduced and the survival can be promoted by thinning branches and cutting short. After the seedlings are planted, the film should be covered tightly, irrigated once a day, and sprayed with a fine-eyed spray pot. In cloudy days, it can be watered once a day. After 15 days of insertion, basically began to take root, at this time, to spray bacilli, once every 7 days, spray 2 times in a row. Note that the humidity in the shed bed is kept at 80%-90% and the temperature is below 28 ℃. Turn on the plastic film to ventilate and cool down when it is 28 ℃ higher.

2. Breeding methods of Spiraea chinensis

Ramets, cuttings, or sowing and propagation, should be pruned after flowering and cut off the residual flowers.

The main results are as follows: 1. Ramet propagation: ramet is general, combined with transplantation from February to March, tillering strips are separated from the mother plant, and after proper pruning, the tiller strips can also be fertilized before the ramet to promote the mother plant to sprout more, and then dug and planted again in the second year.

2. Cuttage propagation: both twigs and hardwood can be inserted, and the twig is obviously better than the hardwood.

3. Sowing and reproduction: after sowing autumn seeds are ripe, they are picked, dried, threshed and stored, and the seeds are taken out for sowing pot the following spring. Because the seeds are small, sowing and reproduction need to be taken care of carefully. Sow the potted soil thoroughly before sowing, then spread the seeds evenly, cover with a layer of sifted fine soil, and then pay attention to moisturizing, and the seedlings will emerge in about 1 month. As sowing seedlings are easy to suffer from blight, Bordeaux solution should be sprayed before the disease.

The above is the introduction of the cultivation methods and breeding methods of Spiraea. Friends who like Spiraea should not miss it. They also want to know other knowledge of Spiraea and continue to pay attention to us.

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