1. Soil selection: Paeonia lactiflora is suitable for loose sandy loam with good drainage. Poor growth in clay and sandy soil, high soil water content and poor drainage are easy to cause root rot. Neutral or slightly acidic soil is suitable, and saline-alkali soil is not suitable for planting.

2, intertillage weeding: after the peony seedlings are unearthed, intertillage should be carried out in time to remove the velvet, not deep, so as not to damage the young roots. In summer drought, intertillage should be used to conserve soil moisture, and intertillage should be used to weed 3 ~ 4 times a year.

3. Watering management: Paeonia lactiflora likes a high-open and dry environment and does not need to be watered frequently. Because it is a fleshy root, it is particularly intolerant to waterlogging. Water accumulation for 6 ~ 10 hours often leads to rotten roots.

4. Light management: Paeonia lactiflora can grow luxuriantly in the growing period with bright light, but it can also grow normally in the dark. The flowering period can reduce the temperature and increase the humidity appropriately to avoid being burned by strong sunlight, thus prolonging the viewing period.

5. Temperature management: Paeonia lactiflora is a typical temperate plant, which likes temperature and cold. The extreme maximum temperature in summer reaches 42. 1℃, and the summer can be safely spent. The extreme minimum temperature in winter is -46.5℃, and it can still grow and bloom normally.

6. Timely topdressing: Paeonia lactiflora is topdressing or not topdressing in the first year, and topdressing 3 times a year from the second year. In late March, human and animal manure 1 0,000 kg should be applied, and in mid-April, human and animal manure 1 0,500 kg, calcium superphosphate10.5 kg and manure 2500 kg should be applied.

7. Bud picking and pruning: Paeonia lactiflora, in addition to seed keeping, usually shoots at the time of germination to promote the growth of plants and roots. In order to make the peony flower huge and beautiful, it should be thinned in time after the lateral buds appear, so that the nutrition can be concentrated on the main buds to achieve the expected purpose.

Extended data:

Pest control of Paeonia lactiflora;

1, black spot disease

The harm of black spot disease is very serious. First, there are small dark brown spots on the leaves, and then they expand into shapeless wheel lines, which are connected with each other and make the green leaves die.

Control can be sprayed with Bordeaux solution, or 500 times of zineb or Dyson manganese, and the damaged part will be cut off and burned. When Paeonia lactiflora is planted for three or four years, continuous cropping is not allowed.

2, white silk disease

When the blight is serious, the whole plant dies or the whole leaf dies. At the base of infected plants, dark brown wet disease first occurs, and then white mycelium appears on the soil surface or at the base of plants.

Prevention In order to prevent the occurrence of diseases, the soil can be disinfected or replaced with sterile soil when planting, and the diseased plants can be cut off or pulled out and burned. Before the onset, 50% carbendazim wettable powder can be sprayed 500 times regularly.

References:

Peony-Baidu Encyclopedia