When is the peony known as "national beauty" sown? How to grow?

The peony has large flowers and bright colors, and with the support of green leaves, it appears elegant and charming, coupled with its delicate fragrance, which is very moving, so it has always had the reputation of "national color and heavenly fragrance" and is recognized as the king of flowers. According to the color of the flower, it can be divided into 8 types: White, yellow, pink, red, purple, green, black and blue; according to the flower type, it can be divided into single valve type, semi-double valve type, double petal type, ball type, etc., according to the morning and evening of flowering, there are three types: early flowering species, late flowering species and medium flowering species. When will the peony be sown? How do you plant it?

When will the peony be sown?

Peony is a deciduous plant in winter. Peony sprouts early in February in early spring, and the growth time of peony in spring is not suitable for transplantation. as the saying goes, it is absolutely impossible to grow peony without flowering in spring. If you want to plant peony in spring, you have to choose container seedlings or take soil balls, so as to ensure the survival rate of peony.

At the end of August, the peony sprouted and formed, during which time the peony began to dormancy, and the bare root transplanting could be carried out. The time of bare root transplanting from north to south is as follows:

Northeast: best from August to October

North China: the best from September to November

Southwest: best in mid-September-November

Huazhong: the best from mid-September to the end of November

South China: October-January of next year is fine

If you want the peony to grow well in the coming year, it is still an early species, which will produce a large number of new capillaries, which will play a key role in the growth of the coming year.

Second, how to plant peony?

1. Land selection and preparation

Select the sandy loam with sunny dry, deep soil layer and good drainage, which can not be continuously cropped within 4-5 years; the newly reclaimed land is often turned to a depth of about 60 cm, fully weathered, applying 45000 ~ 60 000 kg of organic fertilizer per hectare. When preparing the soil, it is made into a border 1.5 meters wide, with the back of the turtle on the border, and the trenching and drainage must be unobstructed. Saline-alkali land, clay land or plots with high groundwater level are not suitable for planting.

2. Methods of reproduction

Seed propagation and plant division propagation were used.

The main results are as follows: (1) the seed reproduction coefficient is large, but the seedling formation time is long, so it can not maintain the good characters of the parents.

Seedling peony seeds can be treated with 1% gibberellin for 48 hours, or a low temperature of about 5 ℃ can release Hypocotyl dormancy, and seedlings will be unearthed in the following spring after sowing. Strip sowing according to row spacing of 20 cm, plant spacing of 6 cm, covering soil of about 3 cm, border cover grass.

After transplanting and sowing for two years, the seedlings should be planted, and the diseased and weak plants, especially those with root-knot nematodes, should be removed firmly. The seedlings are divided into two grades according to their size. Each seedling requires 3 or 4 branched roots. The excessively long roots are properly cut to the depth of the hole. They are planted according to the row spacing of 30 cm, and there are 2 plants in each hole. The roots must be stretched. The soil cover the terminal bud about 3 cm.

Seedling transplanting is generally used in direct seeding production, but direct seeding is used in some places in recent years, and the row spacing is the same as that of seedling transplanting. The advantage of direct seeding is that the rhizome is long and straight, so a better yield can be obtained.

(2) the sturdy mother plant of four to five years old was dug up at harvest, cut off the large and middle roots and put into medicine, cut off from the place where the plant was easy to be divided into 4 plants, and could be transplanted from September to November. Early planting was better. Before planting, the soil was turned 60 cm deep, 90,000 kg of basic fertilizer was applied per hectare, ditched and divided into borders, the plant spacing was 25 cm × 35 cm, 1 plant was planted obliquely in each hole, and the soil was covered with 3 cm to 4 cm.

(3) this method of grafting can keep the excellent characters of the mother plant, but the reproduction coefficient is small. In autumn, 5 ~ 6-year-old rootstocks are selected, which are 15 cm in length and 2 cm in diameter. Dig out the rootstock and place it in a cool place for 2-3 days, soften and use. The scion should take the current year's branches with full growth, smooth and short internodes, with 1 or 2 full buds. After the rootstock is closed with the scion cambium, it is bound with hemp bark and other things.

3. Field management

The main results are as follows: (1) Tillage and weeding are combined with weeding several times after spring to prevent root injury and cultivate soil in winter, which is beneficial to root growth.

(2) it is necessary to apply enough stable manure or manure when fertilizing and transplanting, and it is more important to apply fertilizer in autumn. Generally, 6000 kg of manure and 1500 kg of rapeseed cake fertilizer are applied per hectare, and the leaves should be prevented from being fouled when applying fertilizer.

(3) picking flowers every spring, the buds will be picked immediately after budding. Except for special uses such as keeping seeds and selling flowers.

(4) shaping and pruning includes setting drying, removing soil buds and picking buds.

Time: 2019-03-13 Click: