Fertilization

Fertilization

Question: fertilization

I have a 20 of fruit trees of various species from apple, pear, cherry, plum, peach, I would like to know now that they are about to sprout if I have to fertilize them if so what kind of fertilizer should I use?


Answer: fertilization

Dear Alberigo,

all the synthetic fertilizers that we find on the market contain three fundamental macroelements, which are used by plants for their development; the three fundamental elements are Nitrogen (N), Phosphorus (P) and Potassium (K). Nitrogen is essential for a general development of the green organs of the plant and for the production of new shoots, the production of new fruits. Fertilizers such as manure and earthworm humus also contain high quantities of nitrogen; phosphorus 7 an important element for the development of the root system; potassium is essential for the taste, flavor and size of the fruit. In addition to these macroelements, a good synthetic fertilizer also contains microelements, in smaller quantities, also important for the development of fruit plants, such as iron, calcium, magnesium and boron.

The fertilizations practiced in the orchard take into account the different periods of development of the plants, and also the different needs manifested during the year.

At the end of winter and at the beginning of autumn, slow release fertilizations are applied with fertilizers rich in nitrogen; this is because in spring the vegetative restart manifests very high demands for nitrogen, as the plants are producing buds, leaves, flowers; in autumn, however, plants can absorb nitrogen from the soil and store it for the following spring. A good autumn fertilizer will also contain good amounts of phosphorus, in order to favor the development of the root system. Spring fertilizations are provided between February and March, depending on the season, when the plants are beginning to swell the buds; the autumn fertilizations are practiced in September-October, when the plants are still in vegetation, before the winter rest. Manure is often used for this type of fertilization, which is distributed at the foot of the plants, burying it slightly with a hoe; about a bucket of manure is used for each plant; or spread a couple of handfuls of slow release mineral fertilizer.

During spring and summer, fertilizers richer in potassium are used, with a good amount of phosphorus and microelements; this type of fertilizer improves the quality of the fruit, so the plants benefit particularly from it while they are in fruit. You can use granular fertilizers, both slow release and faster release.

In the large orchards in spring foliar fertilization is also used, with products rich in nitrogen, which works in a particular way for pome fruit.

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