How to apply top dressing in winter?
The web will tell you about the related experience of how to apply top dressing for flower planting in winter. Next, the editor will introduce it.
Yesterday, a flower enthusiast asked that his peony had grown a large bud, but recently, he found that the bud had turned black, and he didn't know the reason.
The picture clearly shows that the bud was originally very full, but now it has turned black. After careful inquiry, it turned out that the enthusiast had applied several times of "Flower More 1," which led to the black bud.
Why does applying "Flower More 1" cause black buds? This has to do with the principles of fertilization. Potted flowers, due to limited growing space, need to be top-dressed frequently to maintain vigorous growth, but not all potted plants can use fast-acting fertilizers, especially in winter. If the winter fertilizer is applied well, the potted plants will grow vigorously the following year with more flowers, but if applied incorrectly, it may lead to withering of the potted plants.
How to apply top dressing in winter?
Winter top dressing for potted plants mainly falls into the following two situations.
1. -- Potted plants in the growing stage --
If it is relatively warm indoors in winter, some potted plants grown indoors will maintain growth. In this case, fast-acting fertilizers can be used, but it is recommended to reduce the concentration.
If it is outdoor potted plants or seedlings, such as dwarf morning glory, day lily, and digitalis, which will continue to grow in winter, they also need to be top-dressed with fast-acting water-soluble fertilizers regularly. For potted flowers that are in the bud formation stage, it is also recommended to apply a small amount of potassium dihydrogen phosphate fertilizer to promote bud growth.
In addition to applying fast-acting water-soluble fertilizers regularly, some long-acting fertilizers, such as fermented organic fertilizers and slow-release fertilizers, should also be applied to replenish soil fertility.
2. -- Potted plants in dormancy or slow growth --
In winter, the temperature is low, and many flowers are in a slow growth or dormancy period, such as peonies, peonies, bougainvillea, and jasmine. Therefore, these potted plants should stop being top-dressed with fast-acting fertilizers.
Since they are no longer growing or growing very slowly, using fast-acting water-soluble fertilizers can easily cause fertilizer damage. As mentioned at the beginning, the enthusiast's peony was in the dormancy period and was damaged by top-dressing with fast-acting fertilizers.
These seedlings in dormancy or slow growth do not need to be top-dressed with fast-acting fertilizers, but it is recommended to apply fermented organic fertilizers or slow-release fertilizers. Because although the above-ground parts of these potted plants have stopped growing, the roots often continue to grow slowly, absorbing and storing nutrients.
That's why we often hear about applying winter fertilizers, which means that fermented organic fertilizers and slow-release fertilizers belong to fertilizers with slow fertilizer effect, which are less likely to cause fertilizer damage and can provide nutrients for a long time.
Fermented organic fertilizers not only contain the three major nutrients nitrogen, phosphorus, and potassium but also contain rich organic matter and trace elements, which are very good for the soil. In winter, they can also help maintain the temperature of the potting soil and are recommended for use. Fermented organic fertilizers are universal fertilizers and can be used for all plants except hydroponic ones.
The above is the complete content of "How to apply top dressing in winter?" Have green plant enthusiasts understood it?