Why potted rose flowers die easily in early spring
The causes of death of potted rose in early spring are as follows:
The main results are as follows: (1) the winter rose overwintered indoors and could not sleep well because of the high room temperature. by the next spring, before it came out of the room, the leaf buds had already germinated and grown, consuming most of the nutrients stored in the branches. After leaving the room, the buds can not adapt to the changeable climate, can not resist the attack of cold air and cold wind, which is easy to cause plant death.
(2) when the pot is changed in spring, the plant has already begun to grow. if more of the original pot soil is replaced, the root system will be damaged, which can easily lead to the death of new buds or even the death of the whole plant. Therefore, the pot change should be carried out before the leaf buds sprout.
(3) when changing pots, if the root of the plant is trimmed too heavy, it is difficult to restore its absorptive capacity and break the balance between the aboveground and underground parts, which will also cause plant death.
(4) the heavy clay and poor water permeability of the basin soil, or the rush to apply fertilizer as soon as the pot is changed, will damage the root system of the plant and cause the death of the whole plant.
(5) the plant suffered from disease, but it could not be controlled in time, resulting in death.
How to spend the winter with potted rose
In the cold winter, the potted rose is moved indoors to spend the winter. before entering the house, the annual seedlings are cut off 2cm 3 if the new branches are more than 30cm high, and 2cm 2 if the new branches are less than 30cm, and those that are too small will not be cut off. If the seedlings are more than two years old, the strong ones should be cut off the lmp 2, and the weaker ones should be cut off the 2pm 3, leaving three or four strong main branches to concentrate the nutrition.
Warm room winter care is also pruned in the above way, and put outside frozen dormancy for a period of time. Ll enters the room at the end of the month, slowly thaw at a low temperature, and then move to your place at 10 degrees Celsius to wait for it to sprout. Then put it in a sunny place indoors, with at least 4 hours of direct light every day, with a temperature of 20 degrees Celsius, a little watering and loosening the soil, and a good noon can be put outside to shelter from the wind and the sun to promote growth. When the new bud leaves develop into branches, properly watering and fertilizing, the flower Zhuangtiling is sprayed in real time after budding, which makes the buds strong, the petals enlarged, the flower color bright, the flower fragrance strong, and the florescence delayed.
After pruning, the potted rose was smeared on the injured □ to protect the tree general to prevent bacteria from being infected by □. Enter the house before the basin soil freezes. Forbid fertilizer and control water in winter storage, avoid air drying, room temperature 0 degrees Celsius is better. If there is a premise, you can dig a soil cellar 60 cm deep, pour enough water 2 days in advance and put the pot code inside, or remove the root of the basin to lose the soil of the outer layer, and change the soil to the basin in spring, so as to prosper. Seal it with soil when it is too cold, and when it gets warmer in early spring, open your mouth and ventilate to avoid yellow sprouts.
Management of family potted rose in spring
The family potted rose complies with the external premise that the rose sprouts in mid-late March. In the escort overwintering cultivation area, preparations should be made before development. Ground planting to lose the cold, and pour through the bottom water; cellar open the lid, so that its ventilation, indoor winter rose, to open a window ventilation, the goal is to make the plant gradually adapt to the warm weather in early spring.
The preparation of cultivated soil is used for changing pots or planting on the ground. The popular nursery soil for cuttage survival can be made of three parts of pastoral soil, one part of sand and one part of mature dung, but it requires loose texture, excellent drainage and air permeability, and rich humus.
In order not to affect the continued development of potted rose, pot change must be carried out before buds and new roots sprout in early spring (in the first and middle of March), and the plant is less damaged during pot change. Do not water before changing the basin to avoid loosening the soil, remove the whole rose from the basin, remove part of the old soil with bamboo sticks, preserve the protective soil, avoid excessive damage to the roots, and cut off the rotten and weak roots of the old roots. in order to promote the development of new roots. Use a basin larger than the original basin, the bottom of the basin covered with coarse carbon slag or put some broken tiles to facilitate drainage, and then covered with a layer of retting hair, hoof horns, broken bones or phosphorus-rich delayed organic fertilizer, and finally fill with nurturing soil (basin soil should not be too full), pier, water-permeable, and put it indoors where there is scattered sunlight.
Take over the light rose is Xiyang flowers, take over the light at least 4-5 hours every day. Although the temperature in early spring has picked up, it is still cold sooner or later, so when the wind and the sun are warm, you can take the pot plants to the outdoor ventilated and sunny place to bask in the sun during lO, and bring the pot plants back at two or three o'clock in the afternoon. In this way, you can raise the temperature of the basin soil and speed up the development of the rose.
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How is it that rose flowers grow leaves instead of branches? Why do rose flowers only grow branches and not blossom?
To sum up, the reasons why rose flowers only grow branches but not blossom can be summarized as follows: (1) the soil is barren or the potted plants have not been changed for a long time, the soil fertility is insufficient, the nutrition is deficient, especially the lack of phosphate fertilizer, which affects the flower bud differentiation, so it can not bloom normally.
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Prevention and control of main diseases and insect pests of rhododendron
(1) ① brown spot of rhododendron: it is the main disease of rhododendron. At the beginning of the disease, small brown spots appeared on the leaf surface, and then gradually expanded into large dark brown patches, and many black or grayish brown spots were scattered on the disease spot. The damaged leaves turn yellow and fall off easily, which not only affects the flowering of the same year.
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