How should roses be fertilized? Rose fertilization is technical!
For netizens, an introduction to common knowledge of rose cultivation, how should roses be fertilized? Rose fertilization is technical!, if there are any mistakes, please correct them!
Roses have a long history of cultivation in China, and their fresh flowers can be used to make fragrant leaf alcohol, with the main component being L-menthol, reaching 0.6%, for consumption and skincare products. The flowers can be used to make cake fillings, rose wine, and rose syrup, and when dried, can be used to make tea. The flower buds can be used as medicine to treat liver and stomach gas pain, abdominal bloating, and menstrual disorders. The fruit is rich in vitamin C, glucose, fructose, sucrose, citric acid, malic acid, and carotene. The seeds contain about 14% oil.
Rose roots and stems are relatively developed, with a faster growth rate and high yield of fresh flowers, hence the need for a large amount of nutrients in the soil layer. Roses require a variety of nutrients, and only with the effective combination of different types of nutrients can the fresh flowers have high quality, increased yield, and continuous harvests. So, how should roses be fertilized? Let's take a look!
Basic fertilizer is a key nutrient for roses, playing a crucial role in the growth of nutrients and fresh flower production. Only with sufficient basic fertilizer supply can the flowers bloom and grow normally. If the basic fertilizer is insufficient, it will make the rose stems weak, leaves turn yellow, and new shoots grow slowly. However, if there is too much nitrogen fertilizer in the soil, it can easily cause the stems to grow tall and loose, with fewer blooms, and even deformed flowers.
Phosphorus and potassium fertilizers can promote the growth of rose roots and stems, making the stems stronger, leaves thicker, and flowers more colorful. If the soil lacks phosphorus and potassium fertilizers, it will make the stems weak and flowers loose and weak. Therefore, when applying basic fertilizer every autumn, it is necessary to mix in an appropriate amount of phosphorus and potassium fertilizers. Potassium fertilizer can promote normal growth of new shoots and leaves, increase the number of flowers, make the flower buds round, and increase the content of rose oil in the flowers.
In addition, roses also need certain types of nutrients, such as iron, boron, manganese, and zinc. If the soil lacks these nutrients, it will cause the plant leaves to lose their green color, and even cause organ deformation, leading to various physiological diseases, affecting the normal growth and development of the rose plant.
Rose fertilization includes two types: basic fertilizer and top dressing.
Basic fertilizer is generally recommended to apply 30-40KG of Standlee 45% (15-15-15) compound fertilizer per mu, along with sufficient decomposed manure (3000-4000KG) to meet the nutrient and efficient nutrient requirements of roses, as well as the nutrient element requirements. Rose basic fertilizer is generally applied after the leaves wither in autumn, as early as possible, which can help the injured roots heal and grow new roots, beneficial for promoting abundant growth of the plant in the following spring. If the basic fertilizer is applied too late, it usually affects the normal growth of the plant in the following spring.
Top dressing is carried out during the rose growing season in summer and autumn, generally four times, with a recommended application of 10-20 kilograms of Standlee 45% (15-15-15) compound fertilizer or high-rise compound fertilizer per mu each time, with the actual amount depending on the local soil nutrient content and past fertilization practices. The four top dressings are: the first is the germination stage, when the roots begin to grow and the seeds sprout on the ground, fertilizing to promote the growth of new stems; the second is the bud stage, when the rose begins to sprout leaves and the root growth reaches its peak, with a larger amount of fertilization; the third is the flowering stage, when insufficient nutrients will directly affect the yield and quality of the flowers, and top dressing with compound fertilizer is required; the fourth is the late flowering stage, when the stems gradually stop growing, solar energy utilization is high, photosynthetic efficiency is strong, and nutrient accumulation increases and flows back to the roots.
The above information introduces how roses should be fertilized and the technical aspects of rose fertilization. I hope it can be helpful to you. Don't forget to visit more often for more flower cultivation experience and knowledge!