Cultivation Technology of ornamental Peony seedlings in Diqing Prefecture can Oil Peony be planted in Diqingzhou?

Cultivation Technology of ornamental Peony seedlings in Diqing Prefecture can Oil Peony be planted in Diqingzhou?

1 selection and preparation of land

1 1.. 11 selected site

Peony is a valuable ornamental and medicinal plant. The root system of peony is fleshy, because it is cold and afraid of heat, likes high dryness and hates low humidity, the cultivation land should choose the land with sunny, high dryness and easy drainage, and avoid continuous cropping. Soil to deep, fertile sandy loam is better, avoid sticky weight, saline-alkali, low-lying land.

11. 22 Seedling and soil preparation

About 20 days before deep turning, the soil was watered once, and then fertilized under water, cake fertilizer 2.25 t ·hm-2 or mature farm fertilizer 30 t ·hm-2, compound fertilizer 750 kg ·hm-2 as base fertilizer, 15 kg phoxim granule and 5 kg carbendazim were applied every 667m 2 as soil insecticide, then turned 25 cm deeply, raked fine and leveled, using small high border, border height 10 cm, border width 80 cm 100 cm. Leave a trench of 30 cm between the two beds.

1 1. 3 3 planting seedbed for soil preparation

30-60 days before planting, the soil was fertilized deeply, and 3 t ·hm-2 cake fertilizer or 35 t ·hm-2 mature farm manure and 750 kg ·hm-2 compound fertilizer were applied as base fertilizer. Every 667m 2, 3% isosalidophos particles 3 kg, carbendazim 4 kg, mixed into the medicinal soil, sprinkled into the seedlings, turned deeply 30 times 40 cm, rotary rake to make the medicine mixed with the soil.

2 cultivation of seedlings

22. 11 seed selection and seed treatment

Peony seeds generally mature at the end of July and the beginning of August, and the pods are picked when the ripe banana peel is yellow, dry in the drying field, and often turned over, waiting for the fruit to gradually change from yellow-green to brown to black, and the dry-cracked seeds can be sown (those that can not be sowed in time can be stored in wet sand). Before sowing, the full seeds were selected by water selection method, soaked in 40-50 warm water for 48 hours, or soaked in normal water for 3-4 days, changed water once a day, and soaked in 1000 times diluent carbendazim wettable powder for 2 hours for disinfection and sterilization of the seeds.

22. 22 sowing and raising seedlings

The seeds were sown from late August to early September, and the seeds were evenly scattered in the ditch with a row spacing of 8 cm and a depth of 5 cm. The seeds were evenly spread into the ditch with a spacing of 1 cm, covered with soil and covered with a little suppression. The seeds could also be sown on the border surface, and then covered with soil 3 cm thick. Then covered with plastic film, and then covered with 6 cm thick soil, heat preservation and moisturizing. The amount of seed used is 1500-2250 kg ·hm-2. After sowing, it only took root but did not sprout in that year, and it had to go through a certain period of low temperature to break the dormancy of epicotyl, and the seedlings sprouted in the spring of the second year.

Field management of 22. 33 seedlings

The young roots can grow 0.5 cm in 30-40 days after sowing, and reach 7-10 cm in 90 days. Before and after the Winter Solstice, put water in the ditch to facilitate root growth. After Rain Water the following spring, he removed the soil and plastic film from the plastic film. Before and after the sting, the seedlings basically came out. In case of drought, sprouting water can be watered. If there is a continuous drought from late May to mid-June, it should be watered once every 7 to 10 days, and loosen the soil and weed in time, combined with watering and fertilization, mainly available fertilizer, and it is appropriate to apply 0.3% potassium dihydrogen phosphate solution on the leaf.

In order to cultivate large seedlings, the seedlings were planted separately in autumn or the original seedlings were removed one row apart, and then fertilized once a year in spring and autumn, and the rotten farm manure was about 22.5t hm-2 or cake fertilizer 3.75t hm-2. Under the condition of normal precipitation in Heze, it was generally not watered, especially in drought, stagnant water and waterlogging should be eliminated in time, and attention should be paid to pest control. After 2 ~

After 3 years of cultivation, the seedlings can be used as grafting rootstocks.

3 cultivation of grafted seedlings

3 3. 11 rootstock and scion selection

The seedlings of "Fengdan", which are 2 ~ 3 years old and more than 1.5 cm in diameter, are generally selected as rootstocks in Heze. Using peony seedlings as rootstocks has the advantages of many ramets, long life, developed root system, strong stress resistance and so on. The one-year-old tillering branches on the robust plant are selected for the peony scion, which has strong vitality and is easy to survive after grafting, and the new branches on the upper old branches can also be selected. The scion is 6-10 cm long, with strong terminal buds and 1-2 small lateral buds. The scion should be grafted with cutting and should not last for a long time.

3 3. 22 grafting time and method

Grafting time is the key factor affecting survival. Peony is grafted in autumn, usually from late July to early September, with the best in early August. According to the grafting site, it can be divided into root grafting, branch grafting and bud grafting. When the diameter of the rootstock is thick, it can be embedded, split when the thickness of the rootstock and scion is equal, and cut when the rootstock is thinner.

According to the condition of rootstock during grafting, it can be divided into ground grafting method and digging grafting method. When grafted by ground grafting, cut flat at 6 / 7 cm above the ground of the rootstock, trim the incision, cut 1 knife longitudinally on the cut, cut about 3 cm long, symmetrically oblique cut two knives under the selected scion, make the side side thinner, make it wedge-shaped, the incision should be smooth, the cut length is 2 cm, and then insert the cut scion into the rootstock to align the cambium of the two, then tie it up with hemp skin, and then cultivate the soil and bury it on the spot. The soil was removed in the spring of the second year. This method grows vigorously after the root system of the rootstock is not damaged, but it is difficult to operate. The method of digging and grafting is to dig out the seedlings of seedling rootstocks and graft them indoors, which can be used more in production. Symmetrically cut two knives under the selected scion, pay attention to make the incision smooth, the length of the incision is 2 to 3 cm, the cross section is triangular, the outside is slightly thicker, and the inside is slightly thinner, then flatten the top of the root rootstock, cut straight at 3 points on one side of the rootstock, the length is similar to the scion section, and then insert the scion into the seam to make the cambium of the two sides in close contact, then bind it with hemp rope and smear the incision with mixed mud. In this method, when Paeonia lactiflora root is used as rootstock, it is easy to be grafted when it is dried in the shade for 2 to 3 days. The grafted seedlings should be immediately planted on the prepared seedbed, and the soil in the lower part of the seedbed should be slightly wet and the topsoil slightly dry to prevent wound infection of the grafted seedlings. Planting in trenches according to 50 cm row spacing, the plant spacing is about 5 cm, the depth is 2: 3 cm from the ground, the root system of the rootstock is naturally extended, and then the soil is 10 cm higher than the scion to prevent drought and cold. When the next spring is warm, the soil cover is removed and the scion is exposed to facilitate germination. Pay attention to no watering before wound healing, and the growth is as high as 12 cm in the same year.

3. 3. Field management of grafted seedlings

Loosen the soil 2 or 3 times before flowering (before April 20), and then twice a month. Fertilizing 2-3 times a year, in spring and autumn, applying rotten organic fertilizer 22.5-30 t hm-2 or cake fertilizer 3-4.5 t hm-2 throughout the year. In case of drought in the growing season, attention should be paid to the prevention and control of diseases and insect pests. The tree peony can survive the winter by sealing the soil, but the plant is sealed with soil to survive the winter in order to avoid man-made damage. At the end of October every year, the soil was dug around the plant to seal the plant, and all the 1-2-year-old plants were buried in the soil, 3-4 years old.

The base of the cultivated soil is only cultivated at the base of the plant height of 2pm and 3pm for more than 5 years. Generally, it can blossom after 3 or 4 years of cultivation.

(4) Disease and pest control

The diseases of peony include gray mold, brown spot, leaf spot, purple feather, anthracnose and so on. Strengthen cultivation management, reasonable close planting, timely drainage, do not plant repeatedly, and soak the seedlings with 1000 times dilution of carbendazim wettable powder. In order to reduce pathogens, the dead branches and leaves of diseased plants were removed in autumn, and the diseased buds and leaves were removed and buried deeply in spring. Spray 1700 times dilution of 50% carbendazim wettable powder or 3 Baumedo stone sulfur mixture before germination to kill germs on the plant, spray 1000 times dilution of 50% carbendazim wettable powder or 65% mancozeb 1600 times dilution from May to July, spray once every 7 times 10 days, even 3 times 4 times, and also use this method to control the disease in other seasons. For the prevention and control of purple plume disease, select the land with good drainage, smear the root with 0.2% pentachloronitrobenzene solution before planting, and more than 50% bacteria.

The 1000 times dilution of Ling wettable powder has a good effect on soaking the roots. The root nematode of tree peony was diluted with 40% methyl isophos or 1.8% avermectin 1 mL to 0.33% 0.2% solution, and the control effect of root irrigation was more than 85%. To golden needle worm, mole cricket and ground tiger, the root was irrigated with 1000 times dilution of 50% phoxim EC or 2000 times dilution of 40% methyl isomers or poisoned.

Bait trap.

Can oil peony be planted in Diqing Prefecture? Diqing Prefecture can plant oil and medicinal peonies to buy Fengdan seedlings, Jishan Hua Yao contact information Wechat; 18374545223