Why do my roses have no buds
Today is Valentine’s Day. In our memory, Valentine’s Day and roses are closely related. This is because roses symbolize the most sincere and pure love, so they are especially loved by couples. But in fact, roses are not only bright externally, they also have unique medicinal and edible values. Because roses contain more than 300 chemical components, which can be used as medicine to dispel qi and activate blood circulation, and can be used as food to beautify the skin, so the prospects for planting roses are very good and can obtain good economic benefits. So how do you grow beautiful roses? What are the techniques? I will explain it to you in detail below.
Growth characteristics of roses
If we want to grow roses well, we must have a sufficient understanding of the growth characteristics of roses. Roses are not among those plants that are easy to grow and survive. They have relatively high requirements for their living environment, including three factors.
The first is temperature. Although roses have certain cold and drought tolerance, they are still more suitable for planting in areas with stable temperatures, which can ensure the chance of blooming. The second is light. Roses are light-loving plants. If they are planted in Lack of light during the growth period may cause the roses to not bloom; the third factor is humidity. Roses have strict requirements for water, so it is best to choose a high planting site, which will not easily accumulate water and ensure that the roses are not prone to water accumulation. There is an adequate supply of moisture.
Choose the right plot of land
Combining the characteristics of roses mentioned above, it can be concluded that the soil type that is more suitable for planting roses is sandy soil with a pH value between 6.5 and 7.5. At the same time, the soil layer should be deep, the soil should be loose, the drainage should be good, and the underground water level should be low. Less than 1 meter, it would be better if the soil contains more organic matter (more than 1.5%). It is not recommended to plant roses in heavy clay soil or low-lying water-filled areas, as this will result in a low survival rate and economic damage.
Cultivation time and method
When can roses be planted? In fact, there is no standard answer, because roses can be planted all year round. However, since we have said that roses need a stable temperature environment to help them grow better, it is best to germinate from late autumn to spring. Planting during this period of time can achieve the best results under the premise of taking good winter cold protection measures.
There are many ways to cultivate roses, including sowing, cutting, grafting and layering. Depending on the variety you want to cultivate, you can choose to achieve better results. Taking the cutting method as an example, the rose branches are inserted directly into the soil to provide nutrition and control the environment. This method is simple and convenient, and has a high survival rate. But for new varieties of roses without ready-made branches, it is more suitable to choose the sowing method.
Fertilizing the soil and making beds
After selecting a suitable plot for growing roses, we need to go through some processing before sowing and raising seedlings. First, sprinkle 6 pounds of organic fertilizer per square meter on the plot. You can also apply some carbendazim, which can kill pathogens in the soil, and then plow it.
To cultivate roses by sowing, you need to make a bed with a width of 1.1 meters and a height of about 18 centimeters. The distance between beds is about 40 centimeters, and then the soil clods on the bed should be broken up.
Picking and sowing seeds
If you want to grow high-quality roses, seed collection is particularly critical. To screen the rose fruits you want to cultivate, select those whose mature fruits are round, 2.0 to 2.5 cm in diameter, and plump. Bright ones are better. After selecting, store it in an environment with a temperature of 50 degrees. In about 15 days, the rose will heat up and rot, and then we can take out the seeds to dry and sow.
In order to ensure the growth and development of roses during the nursery process, it is recommended to germinate the seeds. Soak the seeds in 800 times carbendazim solution for 2 days, then mix them with river sand in a ratio of 1:3, and spread them on the flat ground. , sowing can be done after 20 days.
The suitable time for sowing is autumn, preferably in early November before the soil freezes. Sow these germinated seeds on the bed, and then cover them with soil to a thickness of about 1 cm.
Fertilizing, watering and weeding
Although roses do not have a particularly high demand for fertilizer, this is only if the soil is rich in organic matter. The current soil organic matter content is not particularly high, so fertilization in the field is also very important and cannot be ignored. It is best to apply 15 kilograms of slow-acting ternary compound fertilizer, 1 kilogram of magnesium sulfate and 100 grams of boric acid to the soil deeply every 2 months per acre. Then in autumn, if you find that the soil lacks fertilizer efficiency, you can Just use a high-potassium water-soluble fertilizer for flushing.
During the growth process, rose seedlings are still dependent on water. Lack of water will lead to stunted development. You can observe the bed surface and if it is found to be dry, water it in time.
When cultivating roses in the field, the influence of weeds is inevitable, especially during the growth period of roses. These weeds will compete with roses for nutrients, so they need to be cultivated 4 to 5 times. Then, combined with the cultivation work, the perennial weeds on the ground will be removed. All overgrown plants should be removed.
Seedling planting and pruning
According to the normal development stage, by the spring of the second year, the rose seedlings have grown to a level that can be planted. Here is a standard for everyone: seedlings with a height of 10 cm and a ground diameter of more than 0.4 cm can be planted, otherwise they must continue to be cultivated.
After the roses have grown to a certain level after planting, they also need to be pruned. Especially after the roses bloom and the flowers are picked, thinning is the main method. Select 15 strong branches from each rose bush. Old branches and diseased branches should be cut off in time to allow the roses to grow. Nutrients are concentratedly supplied to the flowers.
Pest and disease control
In areas prone to being invaded by cold winds, rose plants are prone to powdery mildew. When the disease occurs, the leaves, buds and young shoots will be covered with a layer of white powder, which will cause the leaves to bend and the roses will not bloom normally. It is best to focus on prevention of this disease. Sulfur fumigation can have a good effect. If a diseased plant is found, you can use 1000 times of chlorothalonil foliar spray, spray once every 10 days, spray 3 times It can be cured left and right.
Aphids on roses
In terms of insect pests, the most common ones that appear on rose plants are aphids and red spider mites. Aphids will concentrate on flower buds and young leaves, and the larvae will damage the undersides of leaves more often. The control method is to spray with 20% aphids. In high-temperature and dry environments, spider mites appear more often, which will also harm the front and back leaves of rose plants, causing the leaves to dry out and fall off. What is the best way to prevent and treat it? It is recommended to spray with 1.8% abamectin 1500~2000 times.
Original article author：Fragrant Road Full，If reprinted, please indicate the source.：https://www.theroadfull.com/article/2737.html
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