First, field selection
Peony bark has the characteristics of being warm, moist, drought-resistant, cold-resistant, waterlogging-resistant, afraid of water accumulation, high temperature and strong light. Generally, it will be planted in sandy loam with dry, easy drainage and irrigation, deep soil layer, loose soil and fertile soil. It is best to plant it with a certain slope and low groundwater level. Be careful not to plant it in saline-alkali soil and heavy clay. Before planting, deepen the soil and apply sufficient foundation.
Second, the method of reproduction
There are four ways of propagation of Paeonia suffruticosa, namely, seed propagation, ramet propagation, grafting propagation and cutting propagation. Seed propagation is mainly used in Fengdan, Anhui Province, and seedlings need to be transplanted first, and the sowing time is from late July to early October. At the same time, seeds should be soaked in warm water before sowing, and finally drilled. In Heze, Shandong Province, the propagation methods of ramet propagation and grafting are mainly used. The ramet is usually carried out after the autumnal equinox, and the plants that are strong and free of pests and diseases are pruned. The spacing between rows and plants is 35cm and 25cm. Grafting can be carried out between the Millennium and the autumnal equinox, and the spacing between rows and plants is 15cm and 50cm. Finally, the cutting method is most used in Hunan and Hubei, and the planting time is the same as the grafting propagation time, and the spacing between rows and plants is 20cm and 50cm.
Third, field management
You don't need to manage the whole winter after planting. When you are startled in the second year, you should do the first weeding and loosening soil, shallow tillage and soil cultivation after the vernal equinox to protect the growth of seedlings, while the second weeding and loosening soil is done before and after Tomb-Sweeping Day, which requires weeding and loosening soil 8- 10 times a year, and loosening soil after raining or watering to avoid soil hardening. After planting, you don't need topdressing until the next year, and then topdressing twice a year, which can be divided into spring fertilizer and autumn fertilizer. Spring fertilizer is mainly soil mixed fertilizer or manure, which is the same as spring fertilizer with cake fertilizer, but the dosage is twice that of spring fertilizer. Generally, watering is not needed, but if the weather is dry, you still need proper watering, but it must be remembered that drainage should be done in time.
Fourth, pruning and picking flowers
In the second year after planting, we should arrange and prune some long uneven branches, secondly, according to the growth of plants, we should reasonably erase the newly sprouted buds and ensure the uniformity of branches. What should be noted is that in order to improve the yield of Paeonia suffruticosa, all we have to do is to remove the buds except the plants to be planted or used for ornamental purposes, so as to concentrate nutrients on the roots and promote the growth of the roots.
Five, disease prevention and pest control
The main diseases and insect pests of peony bark are damping-off, leaf spot, root rot, peony rust and borer, so we can use Polyspirit, Bordeaux mixture, Chlorothalonil, Diclofenac sodium and trichlorfon to control them respectively, and of course, we can achieve the effect of preventing diseases by strengthening field management.
The above is the introduction to the planting methods of peony bark. Peony bark is produced in Anhui, Sichuan, Henan, Shandong and other places, with the largest output in Hunan and Anhui, and the best quality in Fenghuang Mountain in Tongling, Anhui.