What fertilizers does grape growth require?
If you want to learn about the introduction of fertilizers needed for grape growth in the field of green plants and flowers, let's find out together.
What fertilizers does grape growth require?
In order to achieve higher yields for grapes, fertilizers are essential. Depending on the growth stage of grapes, different fertilizers are used at different times. Generally, grape fertilization management is divided into base fertilization during the dormant season and topdressing during the growing season. Specific situations can be managed by combining tree strength and soil conditions to ensure abundant grape production.
Nowadays, many rural areas have grape picking gardens. With the improvement of people's living standards, the prospects are quite good, and it also brings considerable income to farmers.
In order to achieve higher yields, fertilizers are essential. Depending on the growth stage of grapes, different fertilizers are used at different times. Grape fertilization management is generally divided into base fertilization during the dormant season and topdressing during the growing season. How to manage them?
1. Base Fertilization during Dormancy
Overwintering fertilizer, the foundation for the second-year growth of grapes, is generally applied with fermented and decomposed organic manure, such as chicken manure, cow and sheep dung, etc.
It is applied about one month before grapes enter winter dormancy, usually in September or October, when grapes have been harvested and are still in a green leaf state.
At the same time, it is also the second peak of root growth. Fertilization can promote grapes to grow more fibrous roots, absorb more nutrients, and strengthen the tree for overwintering.
Generally, about 800 kilograms of organic fertilizer is used per acre, and the specific amount depends on the soil organic matter content and soil structure, with appropriate adjustments.
How to apply it: generally, a trench about 35cm wide and 35cm deep is dug on both sides of the grape tree trunk, and the organic fertilizer is buried in the trench.
2. Topdressing during the Growing Season
It is divided into four stages:
- Seedling Boost Fertilizer
- Swelling Fertilizer
- Maturing Fertilizer
- One-time Topdressing after Grape Harvest
It is generally applied in March when grapes just germinate. High-nitrogen compound fertilizers are mainly used to promote germination, make the germination even, leaves thick and large, and inflorescences full and strong. The second application is after fruit setting, usually with fertilizers high in phosphorus and potassium to promote balanced fruit setting.
It is generally applied when grapes grow to the size of soybeans. Nitrogen fertilizers are mainly used, and high-nitrogen compound fertilizers can be applied. This is the peak growing season for grapes, with high fertilizer demand, accounting for about half of the annual consumption.
The maturing fertilizer is applied twice. The first time is 20 to 30 days before grape maturity, mainly with high-potassium water-soluble fertilizers, which can be sprayed on the leaves.
The second application is before the grapes turn color and soften. This time of fertilization is very important. Functional fertilizers can be used, such as high-phosphorus and high-potassium fertilizers, which also contain trace elements to improve grape coloring and increase sugar content.
High-nitrogen water-soluble fertilizers are usually applied to quickly restore the tree's vigor and promote flower bud differentiation for the next year's abundant harvest.
【Summary】Specific situations can be managed by combining tree strength and soil conditions to ensure abundant grape production.
The above is the related content about the fertilizers needed for grape growth, hoping it is helpful to you!