When can water-soluble fertilizer be applied in early spring?
You may not be aware of the content regarding when to apply water-soluble fertilizer in early spring for green plant and flower planting. Details are as follows:
The first bucket of fertilizer for roses in early spring is very important, but choosing the right fertilizer is even more crucial! Today, a flower enthusiast asked why the new leaves of their roses are all deformed? As shown in the following picture.
It can be clearly seen that the new leaves of the roses are wrinkled, twisted, with crispy and yellow edges, which is a typical phenomenon of fertilizer damage in early spring.
In fact, applying fertilizer to roses in early spring is not very recommended. Applying fertilizer too early can easily cause fertilizer damage because many enthusiasts cannot control the amount properly. Fertilizer damage to roses is irreversible. In fact, although roses may germinate in early spring, they are not likely to be deficient in nutrients.
The nutrients consumed by the roses in early spring are mostly stored in winter. Moreover, we have already applied winter fertilizer to the roses in winter. If no winter fertilizer was applied, it should be supplemented in early spring.
When can water-soluble fertilizer be applied in early spring?
In early spring, the timing for applying water-soluble fertilizer to roses should not be too early. Before the roses germinate or just after germination, it is recommended not to use it. The temperature is still relatively low at this time, with fluctuating hot and cold conditions. The growth speed of roses is not very fast, and if the concentration of the liquid fertilizer is not properly controlled, it is more likely to cause fertilizer damage.
In fact, in the Jiangsu, Zhejiang, and Shanghai areas, many roses are just beginning to swell their bud points, and only a few cold-resistant varieties or early-blooming varieties are starting to unfold their leaves. The first application of water-soluble fertilizer in early spring is recommended after the roses have unfolded their leaves, and the concentration of the fertilizer should be controlled.
In early spring, the concentration of fertilizer should be diluted more, as the temperature is still low, and the root system of roses is not very active, with poor absorption capacity. A high concentration of fertilizer can easily cause damage. At the same time, the choice of fertilizer should also be considered when fertilizing in early spring.
What fertilizers can be chosen for fertilizing in early spring?
For roses in early spring, it is recommended to apply controlled-release fertilizer first, followed by the use of growth water-soluble fertilizer. Controlled-release fertilizer can provide roses with the necessary nutrients for growth over a long period.
Many enthusiasts ask: What is growth water-soluble fertilizer? Simply put, it is a balanced fertilizer with a nitrogen-phosphorus-potassium ratio of 1:1:1, or a fertilizer with a higher nitrogen content, which can be called growth fertilizer.
It is recommended to choose a bacterial fertilizer with a nitrogen-phosphorus-potassium ratio of 1:1:1 for roses. If too much nitrogen is used, roses may easily get powdery mildew in spring, which is difficult to treat. To learn about the prevention and control methods for various diseases and pests of roses, you can refer to the book "How to Raise a Burst of Roses from Scratch." Details are not provided here.
What are the specific types of growth fertilizers?
There are many types of growth fertilizers, the most common being ternary compound fertilizers, Huaduo No. 1, and various brands of general-purpose growth fertilizers and nutrient solutions.
Note: Among these water-soluble fertilizers, we only need to choose one to use, or alternate between different brands. However, it is important not to mix growth fertilizers from two brands together or use them consecutively because it is easy to cause fertilizer damage.
The enthusiast mentioned above caused fertilizer damage because they used compound fertilizer in early spring and then used Huaduo No. 1. Ternary compound fertilizer is just larger in particle size but is still water-soluble. After applying ternary compound fertilizer, only clean water should be used for at least one week, and no water-soluble fertilizer should be used again, or it is easy to cause damage.
When fertilizing in early spring, it is recommended not to rush. It is completely fine to start using water-soluble fertilizer after the roses have grown three or four leaves.
The above sharing on when to apply water-soluble fertilizer in early spring and what fertilizers can be chosen for early spring fertilizing is for everyone's reference and operation.