There are two kinds of propagation methods of Rosa roxburghii: seed propagation and cutting propagation. Sowing can be done in both spring and autumn, preferably in late February and early March, and immediately after the seeds mature in autumn, with high germination rate. Rosa roxburghii cuttings can be carried out in spring, summer and autumn.

Step 2 plant

Generally, the garden should be opened before planting. The soil is deeply ploughed and matured to increase fertility. Rosa roxburghii is not drought-tolerant and has poor water retention capacity. Therefore, the planting time should be chosen in the dormant period of Rosa roxburghii, and this area of Guizhou is generally from the end of 1 1 to the beginning of 1. The planting depth shall be subject to the buried depth of the seedlings when they leave the nursery. Build small ridges around the planting hole or on both sides of the ditch, irrigate the planting water thoroughly, strengthen management and ensure survival.

prune

Several problems in pruning Rosa roxburghii. The height of the tree is kept at 1.5-2m, the crown width is kept at 1.5m, and the whole plant has 5-8 main branches. In the early stage of planting Rosa roxburghii, it does not need pruning, but can grow freely, promote fruit and form a crown. Prune the branches that are too dense, drooping and too long in the later stage, and cultivate the fruiting mother branches by combining winter and summer pruning to achieve the purpose of three-dimensional fruiting.

4, fat water

The healthy growth of Rosa roxburghii needs slightly acidic soil, and the pH value should be kept at 5.5-7. Topdressing before flowering and young fruit stage, and applying base fertilizer every autumn. The management of soil moisture should be meticulous, watering should be done in time during drought, drainage should be done in time during waterlogging, and intertillage and weeding should be done in time when the soil is hardened.

5, pest control

Rosa roxburghii will inevitably encounter pests and diseases in the growth process, such as aphids, moths, whiteflies, fruit eaters and so on. It is necessary to spray corresponding pesticides in time to prevent and control pests and diseases.

Step 6 harvest

Rosa roxburghii began to ripen in August and September, and the fruit was not ripened at one time, so it needed to be picked in batches. The fruit of Rosa roxburghii is delicate, so you should pick it gently. Fresh fruit cannot be stored and should be sold immediately. Sun-drying Rosa roxburghii is also very simple, just dry the fruit.