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Question: potato fertilizer
hi I wanted to know what kind of fertilizer I have to give to the potato plants, now that they are about 20cm tall, specifying that before the planting I had distributed manure.
Answer: potato fertilizer
manure at the time of planting is a fundamental fertilizer, both because it brings a good amount of nitrogen to the soil, which will remain available for a few months, and because it improves the mixture of the soil, which then becomes more suitable to host plants, and their root system; nitrogen is a fundamental element for the development of plants, which need it especially in the period of greater vegetative development, as it stimulates the development of healthy and luxuriant vegetation. Nitrogen therefore leads us to have a vegetable garden full of large healthy green leaves. But from the potato plant we wish that I quickly grow the underground tubers, and that I produce so many; to improve the number and quality of the tubers, fertilizers rich in phosphorus and potassium are used, less in nitrogen; these fertilizers are used when the potato seedlings are already well developed, and we want to improve the final product. There are many fertilizers on the market, both granular products, to be spread on the ground, which will gradually be dissolved by the water used for watering; both products to be added to the water of the same waterings, every 12-15 days. For potatoes, leaf fertilizers are widely used in agriculture, which are then sprayed on the plants, after being mixed with water. It is up to you to decide which product best fits your case and how often you work in the garden; for the lazy, surely the best fertilizer is always a slow release granular fertilizer, or a gradual release, because it spreads once in the garden and at each watering melts in the ground.
When buying a fertilizer in the nursery, make sure that, in addition to the usual macroelements, it also contains very important microelements.
By macroelements we mean those minerals that make up most of the salts dissolved in the fertilizer, namely nitrogen, phosphorus and potassium; in particular you need a fertilizer that contains high amounts of phosphorus (P) and Potassium (K), and little nitrogen (N); the microelements are those present in small quantities, but still essential for the correct development of your plants; potatoes need fertilizers that also contain boron, molybdenum, zinc, iron and magnesium.
When we buy a fertilizer we learn to read the label carefully, it will teach us many things.