1: soil, fertilizer, seedlings, preparation
Peony should be afraid of cold and heat, like heights, like rashness, like low humidity. It should be planted in an open place with high terrain and sunny drainage.
Peony is a succulent shrub with deep roots, and its roots can grow up to1-1.5m deep underground. Therefore, it is appropriate to choose loam silt (light sandy soil) and silty loam (mixed soil or semi-sandy and semi-muddy soil) with loose soil and deep soil layer. Waterlogged clay and flying sand are not suitable for planting, let alone saline-alkali land. Land with PH value higher than 7.8 in saline-alkali land needs to be planted in soil replacement.
In order to make peony deeply rooted and leafy, it is necessary to fertilize the soil for 1 ~ 2 months before planting in the field, and the depth is generally 0.5~0.8 meters. After bathing in the sun and fish in summer, it will promote weathering and increase soil fertility.
The best fertilizer is bean cake fertilizer, and multi-element compound fertilizer can also be applied. Apply 200 kg of bean cake fertilizer per mu, and the bean cake fertilizer can only be used after fermentation and decomposition, otherwise it will easily be infected with pests and diseases, which will easily lead to rotten roots.
Generally speaking, it is hot and humid in the south of the Yangtze River in summer in China, so it is advisable to choose Jiangnan varieties with high temperature and humidity resistance as seedlings. In the north and northwest of China, it is most suitable to choose the northwest variety group with strong cold tolerance and some central plains variety groups as seedlings; . The Central Plains has a huge variety group with rich ecotypes, including varieties with strong growth potential and wide adaptability, such as "Yin Hongqiao Dui" and "Jingui Xiangxiang", as well as varieties with strong resistance to heat and humidity, such as "Zhao Fen" and "Ling Hua Zhan Lu", as well as varieties with resistance to pests and diseases and saline-alkali land, such as "Green Xiang Qiu" and "Yupanbai". Never ignore the habit of variety groups and varieties and plant blindly.
2. Tian Tuan management
Proper management measures, robust plant growth, blooming and prolonged plant age; Otherwise, plants grow slowly or develop poorly. Therefore, according to the growth and development characteristics and different cultivation uses of peony, we should do a good job in field management in all aspects.
(1) Cut the grass and loosen the soil
Cutting grass can not only loosen the soil and circulate the air, but also increase the ground temperature in early spring. In spring, the first weeding is carried out from early February to early March. This weeding only loosened the bottom of the wintering soil, mainly to strengthen air circulation.
Every year in late March and early April, the peony is mowed for the second and third time. The second time, you must hoe deeply, generally about 10 cm, and you should hoe carefully.
Early August to late August is the key moment to weed out early weeds, and shallow hoeing should be carried out to weed out weeds before fruiting.
(2) Topdressing
Peony planted in the first year is generally not topdressing, because the base fertilizer has been completely applied before planting, and the seedlings are small and consume less nutrients. From the second year after planting, topdressing should be done 2~3 times a year. The first time is around the end of March to ensure the rapid growth of new branches and adequate nutrition for bud development. After flowering, it is the time when branches and leaves grow vigorously and flower buds begin to differentiate, so secondary topdressing should be carried out to promote the healthy growth of plants and the formation of flower buds. The third time was before beginning of winter in early June at 5438+065438+ 10. This time, the dosage can be more, which can not only improve soil fertility, but also contribute to the wintering protection of peony.
(3) shaping and pruning
Pruning of peony begins in the spring of the second year after planting (annual plants grow naturally without pruning), and the time is generally around the end of March (vernal equinox), when the bud grows to about 5 cm. The premature shoot field is not obvious, which is not convenient to weaken and maintain exuberance, and it is also vulnerable to freezing damage at low temperature; It's too late, the new branches are extended, the new branches are lignified and consume nutrients. Timely shaping and pruning.