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which fertilizer to use for tulips
tulips are fertilized like all other flowering plants, so a fertilizer rich in nitrogen and phosphorus, and in particular in potassium is used; It is obvious that the better the fertilizer you use, the larger the bulbs of your tulips will be, and consequently the flowers of the following year will also be. But how do you choose a fertilizer?
First of all it is important to know how to read the quantity of macroelements contained in the fertilizer; the macroelements are nitrogen, phosphorus and potassium (in fertilizers, these substances are called macroelements because they are those contained in larger quantities); the title of these elements in the fertilizer is indicated by the numbers written after their chemical symbol, or N for Nitrogen, P for Phosphorus and K for Potassium. A good fertilizer for flowering plants will have a title around 15-10-30, which indicates a greater quantity of potassium than the other two elements (potassium favors the development and color of flowers and fruits). If you take a look at the labels of the widespread fertilizers on the market, many have a decidedly lower title than the one I indicated; and very often, a low price also corresponds to a low fertilizer price (but it is not an iron rule, many excellent fertilizers are inexpensive and vice versa). In addition to the macro elements, a good fertilizer must also contain some microelements, or chemical elements contained in very small quantities; for flowering plants it is good that a fertilizer also contains traces of Boron (B), Copper (Cu), Iron (Fe), Manganese (Mn) and Zinc (Zn); the abbreviation EDTA, reported on some fertilizers, indicates that some of the elements they contain have been made particularly bioavailable by combining them with a special compound, and they are often also called chelated fertilizers, this wording also indicates a good quality fertilizer. Once you have found a good fertilizer, remember that your bulbs will need fertilizer especially after flowering, when you will have to cultivate the foliage: if this year you get some beautiful and luxuriant leaves, almost certainly next year you will have beautiful large and colorful flowers ; then supply the fertilizer more or less once every 15 days, in the recommended doses on the package, from when the tulips sprout, until the foliage tends to dry up on its own. If for some reason the soil is too wet, send the supply of fertilizer for a few days.