Autumn rose should prevent diseases and promote growth.
The post-autumn rose has once again entered a period of peak growth. However, some roses begin to yellowing, with black spots in the middle, a few fallen leaves at the base and all the leaves at the base, and the bud falls before it opens. This is mainly due to mismanagement.
In autumn, due to too much water, it is easy to cause rose diseases, mainly black spot. In addition, the basin soil is often too wet, and it is difficult for the roots to breathe, which causes "complications", causing the bud to wither and fall. The rescue method is to remove the diseased leaves and diseased branches in time and destroy them to prevent the spread of germs. Conditional can also spray carbendazim and other drugs 2MUE 3 times. More importantly, water management should be strengthened and bonsai should be placed in a place with sufficient light and good ventilation. Bonsai to maintain "dry and wet", do not often too wet, and pay attention to topdressing, the peak growth period is mainly nitrogen fertilizer, appropriate supplement of phosphate fertilizer and potassium fertilizer to ensure adequate nutrition. Leave 5 short segments at the base of the withered branches in order to regenerate the robust branches.
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How to prevent the phenomenon of "fake living" of rose cuttings
Autumn is a good time for softwood cuttings of rose. At present, cutting is still the main method of breeding rose, it can not only maintain the characteristics of excellent rose varieties, but also has high propagation coefficient, short production cycle, low investment and quick effect, so it is still used by the majority of flower farmers. However, in the process of rose cutting, the phenomenon of "fake living" often occurs because of lack of experience or improper methods. In other words, when the cuttings were cut for 10 days, the axillary buds on the cuttings sprouted or sprouted leaves, and they looked alive, but soon wilted and died. To avoid rose cuttings
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Cutting technique of Autumn Rose
Rose can be cut all the year round, but the autumn cutting method is simple, easy to manage after winter, and can blossom in the same year after planting in the pot the next year. From September to October and the temperature from 20 ℃ to 25 ℃ is the best time to cut rose, and its survival rate is more than 95%. The neutral sandy loam with better water and fertilizer conditions (pH value 6.5 to 7) should be selected for cutting seedling raising in seedling bed preparation. If the soil is clayey and heavy, it can be mixed with appropriate amount of fine sand during soil preparation. If the soil has high sand content and low fertility, an appropriate amount of organic fertilizer can be applied during soil preparation.
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