Cultivation and harvesting techniques of planting Radix Paeoniae Alba

When it comes to Radix Paeoniae Alba, I think everyone is very clear. It is a relatively common traditional Chinese medicine. It has been planted in China for thousands of years. In ancient times, there was only the culture of traditional Chinese medicine. Therefore, traditional Chinese medicine has been widely recognized from ancient times to the present.

Cultivation and harvesting techniques of planting Radix Paeoniae Alba

1. To avoid continuous cropping of peony for land selection and soil preparation, we generally choose good drainage, ventilation to the sun, deep and fertile soil. Before planting, intensive cultivation, deep ploughing 30~40cm, ploughing 1 ~ 2 times. Combined with ploughing, applying stable manure or compost 2500~4000kg per mu as base fertilizer, rake flat cultivation into a high border or flat land with a width of 1.3m to 2.3m, and the drainage ditch between the borders is 20~30cm, and the border length depends on the topography.

2. The propagation technology is mainly split-root propagation, but it can also be propagated by seeds, but it is seldom used in production at present because of the long growth cycle of seed propagation. ① propagated in separate roots. Root-splitting propagation is a common method in the production of Paeonia lactiflora, and the production cycle is short. When harvesting, cut the bud head of Paeonia lactiflora from the root, select the robust bud head, cut into small pieces, each bud 2 ~ 4, leave the head of 2cm under the bud to facilitate growth, plant after cutting or temporary sand storage, cellar, plant peony from August to October, plant according to the row distance from 50cm × 30cm hole, hole depth 10cm, put bud head 1 ~ 2 in each hole, bud upward, flat, then cover soil 5cm or so, cover fruit. Plant about 2500 plants per mu. ② seed propagation. Single peony is more fruity. The seeds matured in the first and middle of August, sowed with picking, or mixed with wet sand to sow in the middle or late September. The seedlings were planted after 2 ~ 3 years of growth. 3. Field management: loosening the soil and preserving soil moisture in early spring, ploughing and weeding 4 times a year after emergence, combined with weeding to cultivate the soil at the root. In late October, the branches and leaves were cut off at the 7~10cm off the ground before freezing, and the rhizosphere soil was cultivated for about 15cm to survive the winter. From the second year, topdressing fertilizer was applied three times a year, from late March to early April respectively, rare human feces and urine were applied, the second time was in late April, human feces and urine 500kg per mu was applied, and the third time was from October to November, mainly circle fertilizer, 1500~2000kg per mu. Topdressing was applied twice before harvest in the fourth year, and it was suitable for opening holes on both sides. Peony generally does not need irrigation, severe drought, it is appropriate to irrigate once in the evening, rainy season, should be timely drainage and irrigation, every spring bud should be removed in time.

4. Disease and pest control 1. Leaf spot. It often occurs in summer, which is mainly harmful to leaves, and the leaves of diseased plants fall early and grow weak. Prevention and treatment methods: ① timely removal of diseased leaves; before the onset of ②, 1 ∶ 1 ∶ Bordeaux solution or 50% acetaminophen 800 times solution, sprayed once every 7 to 10 days, several times in succession. 2. Rust. The damage to leaves occurred in early May and was serious from July to August. Prevention and control methods:

① selected land with high dryness and good drainage for cultivation.

② killed the diseased plants; at the initial stage of the onset of ③, 0.3-0.4 pomethyl sulphur mixture or 97% sodium rust 400-fold solution was sprayed once every 7 to 10 days, several times in succession.

3. Root rot. It often occurs when it is rainy and stagnant in summer, causing damage to the roots. Prevention and control methods:

① selected strong peony buds as seed

At the initial stage of the onset of ②, 50% carbendazim was used to irrigate the roots. 4. Insect pests. There are mainly grubs, ground tigers and other damage to the roots, which occurred from May to September. Control method: 1000 ~ 1500 times of trichlorfon was used to irrigate the root to kill insects. The use of any pesticides is prohibited from 7 to 10 days before harvest, and the use of highly toxic pesticides is strictly prohibited throughout the growing season.

The method of harvesting peony should be in August of the third to fourth year. Choose sunny days when harvest, cut off the stems and leaves, dig out the roots, cut off the coarse roots from the place where the peony heads are planted, leave the thick roots on the peony heads for ramet reproduction, then cut off the roots and tails of the lateral roots on the thick roots, cut them into 9~12cm strips with similar thickness at both ends according to the natural growth of the roots, and put them indoors for 2 to 3 days according to the size. Turn the pile once a day.

The technique of keeping peony when harvesting, cut off the medicinal part of the peony, leave the root 6cm or so, cut the pieces longitudinally, keep 4 ~ 5 buds in each piece, dip some lime in the wound and put it in the sun to dry the water in the wound, preserve it in the cellar or indoors with sand storage method, and plant it from late September to early October. The seeds mature in the middle or late July, cut off the shells, put them in a cool place for about 10 days, then thresh, avoid sunlight exposure, sow from the end of July to the beginning of August, and pay attention to heat preservation and moisturizing after sowing.

In the process of planting Radix Paeoniae Alba, in addition to mastering some planting techniques and methods, it is also very important for the prevention and treatment of its diseases, only to master the prevention and treatment of some common diseases. It is very helpful to improve the planting yield of Paeonia lactiflora.