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The extent to which an apple tree must be fertilized depends mainly on the age of the tree. Here we explain it to you in detail.
There is hardly a garden in which there is not at least one fruit tree. It doesn't matter whether it's cherry, apple, plum or pear. The Germans prefer the apples. Whether sweet and floury or sour and crunchy - the selection of varieties is very extensive and there is a suitable variety for every taste.
In order for the fruits to be deliciously tasty and juicy, the apple tree needs good care. This means that it must be fertilized every now and then. However, this depends on the age of the tree and of course on the fertilizer itself.
Here we explain how and especially when you fertilize your apple tree properly.
❀ Fertilize young apple trees
In contrast to older apple trees, young apple trees require relatively little fertilizer. The only reason is that you should have added fertilizer in the form of nutrient-rich compost when planting the apple tree. This fertilizer, whether compost or special plant soil, is sufficient for the first few years.
Fertilize with mineral fertilizer
Organic fertilizer is always best for trees and plants, but if you do not have one or the nutrients are insufficient, you can also use mineral fertilizer.
So if you really want to fertilize your young apple tree, add 10-15 grams of blue fertilizer (available here at Amazon) to the planting site in spring. Blue fertilizer contains all the main nutrients and vital trace elements and also ensures rapid growth.
Fertilize with organic fertilizer
Organic fertilizer is sufficient for most plants. If you own a garden, you should always create a compost heap. This way, garden waste can be optimally disposed of and you can also create good soil for fertilizing and planting.
Fertilize here in spring and give the apple tree 1-1.5 liters of ripe compost, that's enough. To cover the nitrogen requirement, you can also add 5-10 grams of horn meal (also cheap at Amazon)
" Watch out! As of June, you should no longer feed your apple tree with fertilizer, as the shoots are already too wide and can no longer mature sufficiently.
❀ Fertilize older apple trees
Older apple trees also prefer organic fertilizers. Add about 4 liters of ripe compost to the tree slice. You can supplement the compost with 80 grams of horn meal, which also supplies the nitrogen.
If you have no compost in stock, a fertilizer made with potassium will do the trick (my recommendation: Dehner fruit tree fertilizer).
You have to remember two times for fertilization. The first fertilization takes place in spring and the second afterwards in May or June. After that, you should generally no longer fertilize your fruit trees.
»By the way: The addition of fertilizer not only ensures that the crop yield increases, but also helps to prevent fungal diseases and to protect against sensitivity to frost.
❀ Avoid over-fertilization
Those who expect enormous growth from fertilization are wrong here. You should never let your plants grow in turbo. You have to expect a few disadvantages here. Nitrogen fertilizers in particular should only be used moderately, since the disadvantages of turbo gear can be felt particularly clearly here.
If the fertilization is too strong, the shoots simply grow too quickly, so that the flowers and fruits recede. So apples are kept from you. In addition, the apple tree is so much more susceptible to fungal diseases and other pests. After all, he's only busy with waxing.
So only fertilize your apple tree in moderation instead of in bulk. The tree grows all by itself.