Planting and Culture methods of Paeonia lactiflora

Before planting peony flowers, it is necessary to select places with high dryness and good drainage, requiring deep, loose and fertile sandy urban soil. When planting in saline-alkali areas, it is necessary to change the soil; when planting in lower areas, to build a high platform, there should be sufficient clean water sources for irrigation. Avoid continuous cropping of peony. Field cultivation generally rotates once every 3 to 4 years, otherwise the growth will be weakened and the damage of diseases and insect pests will be serious. When cropping cannot be rotated on time due to land limitations, deep turning should be carried out 1-2 months before planting. With a depth of 60cm and 100cm, cake fertilizer of 1500kg to 2000kg or 200kg to 250kg can be applied every 666.7 square meters. remember not to apply raw fertilizer without maturity.

1. Planting time: no matter sowing seedlings or planting seedlings, it is from late August (the End of Heat) to late September (the Autumn Equinox) in Heze and from late September (the Autumn Equinox) to early November (the Beginning of Winter) in Yangzhou. It is usually carried out in combination with ramet.

2. Planting specifications: the row spacing of ornamental cultivation plants in the garden can be 1 m × 1 m, and the planting points can be arranged in "product shape", so that the land can be used uniformly and reasonably, which is conducive to the symmetrical growth of plants. however, the field operation is sometimes inconvenient to facilitate field management and observation and recording, the horizontal and vertical "square" arrangement is often used. The specification of the planting hole, the depth is about 35cm, the diameter of the upper mouth is 18cm, the digging pit should be narrow on the top and wide on the bottom, the thick root should not be removed in ornamental cultivation and propagation, and the root-promoting seedling after root removal should be used in medicinal cultivation, and the hole is about 25 cm naked. If you directly use the peony root after planting, the depth can also be shallow.

3. Planting method: the bottom of the hole is applied with rotten dried manure or cake fertilizer. Mix well with the subsoil. Before planting, the seedlings of Paeonia lactiflora were treated with the mixture of thiophanate methyl and isofloxate 1000 times to prevent the harm of diseases and insect pests. Hold the peony seedlings by hand, so that the roots are sparsely placed in the hole, when filling to the half pit, shake and lift the seedling plants, so that the root system is closely combined with the soil. When the height of the seedling is raised, the bud is flat with the ground, and the soil pit sinks after watering, which is the suitable planting depth. Planting is too deep, the bud is not easy to sprout, even if the seedling, the growth and development is not exuberant; planting is too shallow, the rhizome exposed to the ground, summer exposure, easy to lead to death. Finally, fill the soil until the hole is full, tamp it, and pile up a 10-centimeter mound to prevent cold and preserve soil moisture, which also plays a role in marking and protecting. Depending on the soil moisture, if the soil is moist, it can not be watered after planting, and it should be irrigated immediately after planting.

The cultivation of Paeonia lactiflora is mainly carried out by traditional propagation methods, which can be planted by ramet, sowing, cutting, striping and other methods, of which the ramet method is the most easy and widely used. The sowing method is only used for the cultivation of cut varieties, the production of grafted peony rootstocks and the production of medicinal materials. The rapid propagation of ornamental varieties is an urgent problem to be solved, which has been pinning its hopes on tissue culture. A lot of work has been done at home and abroad, although progress has been made so far, but there is still a long way to go from the practical application.

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