Propagation method of Rhododendron: sowing

Selection of sowing season of Rhododendron

It is propagated by sowing method and sown in autumn in areas where the soil is not frozen in winter. In the northern region, the seedlings were raised indoors in early spring and appeared in about 7 days under the condition of 15 ~ 20 ℃

Management of Rhododendron after sowing

Before the development of true leaves, the seedlings shall be raised and put into the basin in time. After there is no frost, the seedlings shall be removed from the basin and planted with soil (do not hurt the root, otherwise it is not easy to resume growth or even die); It can also be broadcast live in the open before the land freezes. With wind barrier protection, the seedlings will be unearthed the next year. Sufficient water and nutrients should be supplied at the seedling stage. Promote its growth and health

After sowing in autumn, in case of cold wave and low temperature, the flowerpot can be wrapped with plastic film to facilitate heat preservation and moisture retention; After the seedlings are unearthed, the film should be uncovered in time, and the seedlings should be exposed to the sun before 9:30 a.m. or after 3:30 p.m. every day, otherwise the seedlings will grow very weak; After most of the seeds are ready, they need to be planted properly: pull out the diseased and unhealthy seedlings, so that there is a certain space between the left seedlings; When most of the seedlings grow three or more leaves, they can be transplanted into pots

Propagation method of Rhododendron: cutting

Cutting medium of Anthurium andraeanum

It is the nutrient soil or river sand, muddy carbon soil and other materials used for cutting. It is difficult to get an ideal cutting matrix due to the limited conditions of family cutting. It is recommended to use the prepared and detoxified cutting matrix provided by our station; Medium coarse river sand can also be used, but it should be washed with clean water several times before use. Sea sand and river sand in saline alkali areas should not be used. They are not suitable for the growth of flowers and plants

Selection of cutting branches of Anthurium sibiricum

The branches used for cutting are called cuttings. Usually, combined with coring work, the thick, pest-free top tip picked is used as cuttings and directly cut with the top tip

Management after cutting of Anthurium sibiricum

Temperature: the optimum temperature for cuttings rooting is 18 ℃ ~ 25 ℃, lower than 18 ℃, cuttings rooting is difficult and slow; When the temperature is higher than 25 ℃, the scissor of cuttings is easy to be infected by bacteria and rot, and the higher the temperature, the greater the proportion of rot

Humidity: after cutting, the relative humidity of the air must be kept at 75 ~ 85%. Spray can be used to increase the humidity, 1~3 times a day. The higher the temperature is, the higher the temperature is. The lower the temperature is, the less the spray will be. But too much spray, the cuttings are easily infected by the bacteria and rot, because many kinds of bacteria are found in water. p>

Light: cutting propagation is inseparable from sunlight. However, the stronger the light, the higher the temperature in the cuttings, the stronger the transpiration of cuttings and the more water consumed, which is not conducive to the survival of cuttings. Therefore, after cutting, the sunlight must be blocked by 50 ~ 80%. After the roots grow, the shading net shall be gradually removed: in sunny days, the shading net shall be removed at 4:00 p.m. every day, and covered before 9:00 a.m. the next day