What kind of fertilizer is good for grapes
If you want to understand the issues that need attention for grape fertilization time and methods and what kind of fertilizer is good for grapes, let's take a look together!
We all know that grapes are a fruit that requires a relatively large amount of fertilizer. Generally speaking, the growth process of grapes involves multiple topdressings. So, what kind of fertilizer is better for grape fertilization, and what specific issues need to be paid attention to in terms of fertilization time and methods?
The editor believes that the fertilization time of grapes is mainly divided into five stages.
1. Base fertilizer
Base fertilizer is an essential growth condition for any crop, being the foundation of crop growth, and grapes are no exception.
Usually, the application of base fertilizer for grapes can be chosen after the autumn harvest and before the leaves fall. The main components of the fertilizer are organic fertilizer, balanced water-soluble fertilizer, and microbial agents.
Among them, balanced water-soluble fertilizer is a fast-acting fertilizer that can quickly make up for the nutritional deficiencies of grapevines in the later stage, while organic fertilizer and microbial agents are long-acting fertilizers that can ensure the trees successfully overwinter and also ensure the healthy growth of the roots.
2. Germination fertilizer
Germination fertilizer is the first fertilization of grapes every year. This period is the stage of new shoot growth, flower bud differentiation, and leaf growth of grapevines.
The demand for nitrogen fertilizer is higher, and mainly nitrogen fertilizer can be applied, or it can be combined with balanced fertilizer for fertilization, ensuring sufficient nutrients in the early stage and avoiding excessive leaf growth.
3. Flower drop fertilizer
Grapes require a topdressing before and after flowering. This period is a time of rapid growth for new shoots and flower buds.
The demand for fertilizer is also relatively high. Therefore, topdressing at this stage is beneficial for the healthy growth of grapes and can also promote the development of young fruits, reduce fruit drop, and increase later yield.
Fertilization before and after flowering can choose high-phosphorus water-soluble fertilizer, while supplementing some medium and trace elements such as calcium and boron, which can ensure the health and quality of grape fruits.
4. Expansion fertilizer
The period when grape fruits gradually expand is a time of relatively fast growth of roots and fruits. During this time, grapes are prone to nutritional deficiencies, and if topdressing is not timely, it may cause a reduction in yield in the later stage.
Expansion fertilizer still mainly consists of high-phosphorus water-soluble fertilizer, and it can be combined with high-potassium water-soluble fertilizer for irrigation to make grape fruits expand quickly.
5. Color development fertilizer
Color development fertilizer is the last topdressing in the grape growth process, and the amount of this topdressing is relatively large because it relates to the final yield and quality of grapes.
Color development fertilizer should mainly consist of high-potassium water-soluble fertilizer, combined with a small amount of nitrogen fertilizer and magnesium fertilizer, which has a significant effect on increasing the size of grape berries, improving coloration, and sugar content, and also prevents the premature yellowing of grapevine leaves.
In addition to the above fertilizations, some regions will also apply a post-harvest fertilizer after harvesting, which is also a scientific practice. Post-harvest fertilizer usually uses balanced fertilizer, which can supplement tree nutrients and prevent premature aging.
The above introduces the issues that need attention for grape fertilization time and methods and what kind of fertilizer is good for grapes, for everyone to learn and understand!