Method and time of planting Rosa davurica

The planting method and time of wild rose seeds are as follows:

First, seed treatment

Rosa davurica is usually planted in spring and autumn. First, wash the seeds harvested in autumn with clear water, pick out the seeds with poor quality, and dry the seeds with good quality in a ventilated place indoors for later use.

In autumn, the seeds are yellow or red, and the calyx at the top of the fruit has dried up, which means that the seeds can be harvested. The collected fresh seeds were shelled and put in the refrigerator for 3 months.

Second, accelerate germination treatment.

Because rose seeds have a dormant period, let the seeds germinate before planting. Put the seeds in the refrigerator, adjust the temperature in the refrigerator to 8 degrees Celsius to 10 degrees Celsius, and store for 1 day. Time is up, take out the seeds, put them in wet sand, cover them with gauze and water them once a day. After about 20 days, the seeds will germinate.

Third, prepare the matrix.

Suitable substrates must be prepared for planting wild roses. The substrate should be fertile, loose and breathable, and the PH value of the substrate should be slightly acidic. Before planting, cover the substrate with enough base fertilizer, usually with some decomposed organic fertilizer, and then add some water and stir thoroughly to keep the substrate moist. The substrate should be covered with a thin layer of sand, which is beneficial to the growth of roots.

Fourth, planting

After germination, the seedlings can be planted in nutrient soil. The bottom of the seed should be covered with soil and not exposed. You can water it by holding it down with your hands, and cover it with film. Just keep the soil slightly dry in the early stage, tear off the plastic film after the real leaves grow and open, and water it every 10 day.

Fifth, do a good job of transplantation.

When the plant height is about 10 cm, it can be transplanted. After transplanting, loosen the soil properly and weed regularly to let the plants receive more sunlight. In the germination stage, the soil should be kept moist, but the basin soil should not have water.

Six, watering management

Water every three or four days in spring and autumn. Water can be watered once every two or three days in summer. Wild rose is afraid of waterlogging and should not be watered more after flowering, so the principle of seeing dry and seeing wet can be adopted. Water Bai Yutang. Be careful that there is no water in the roots of plants.

Seven, fertilization management

Rosa davurica has good adaptability. It likes fertilizer, but wild roses can also be planted on barren land. Liquid nitrogen fertilizer is applied twice in March, phosphorus and potassium fertilizer is applied twice in April and May, and rejuvenation fertilizer is applied 1 time after flowering.

Eight, do a good job of pruning

In the process of the growth of Rosa davurica, we should cut off the residual flowers, twigs and overlapping branches in time, leaving thick branches, leaving the young branches 5 cm away from the base and the outer branches outside.

Nine, disease prevention and control

Powdery mildew is easy to occur in the growth process of Rosa multiflora. At the beginning of discovery, the diseased branches should be cut and destroyed, and liquid medicine, such as carbendazim, should be sprayed in time.