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- When and how are grapevines fertilized?
They are not only an ornament on every wall of the house or in the trellis, they also produce delicious fruits: vines. However, they only thrive if you fertilize them properly.
Grapevines need a lot of care in order to stay healthy (ie no diseases on the grapevines) and to produce a rich harvest. In addition to regular pruning, fertilization is also part of the care measures. The nutrient requirement of the grapevines is indeed very high. That's because they get cut back every year. For this reason, regular fertilizer inputs are indispensable.
Fertilize best with organic and mineral fertilizer. If you only administer organic, it could lead to a lack of specific nutrients.
In addition to potassium and nitrogen, grapevines also need boron, iron, magnesium, calcium, copper, manganese, phosphate and zinc. In order to select the fertilizer correctly, you should have the soil analyzed every four to six years.
When and how are grapevines fertilized?
➤ First fertilization in spring:
The main growth of the vines begins in April. Then the grapevines need a complete fertilizer that is rich in nitrogen. In addition, you should give the plants an organic fertilizer, for example in the form of compost or manure. The compost enriches the soil with nutrients, from which the vines can then consume until autumn. In addition, composting improves the structure of the soil and factors such as moisture, oxygen content and heat are positively influenced.
➤ Second fertilization in autumn:
In September, it will be time for the second fertilization of the grapevines. At this time, the plants need especially Kali, because the potassium helps to ripen the wood and prevents frost damage. If you live in an area with mostly dry weather, you should apply a layer of mulch to keep moisture in the soil better. It also improves the soil structure and protects the important living organisms in the soil. In addition, the mulch layer also suppresses the growth of weeds.
As a mulch you can use either bark mulch, straw or lawn waste. If it rains enough, you can alternatively sow a clover-grass mixture. (Reading tip: Planting vines - explained step by step)