to influence strawberry quality, though the effect of mineral
nutrient disorders on the quality parameters are limited to studies
concerning only some macronutrients such as nitrogen (N)
with either positive or negative effects.14 Recently, some authors
showed that N application might be one of the strategies to
increase the concentration of phenolic compounds in strawberry
fruits.15 Studies concerning other macronutrients, e.g. phosphorous
(P), or micronutrients, e.g. iron (Fe), in fruit crops have to date
received little attention16 and are limited to fruit tree species such
as apple, pear and peach.17 In this regard, it is interesting to note
that among the macro- and micronutrients, N, P and Fe are most
responsible for yield limitation of crops in the world.18,19 Since
the plant available fraction of P and Fe in soil is nevertheless very
often below the plant’s requirement for optimal growth, the low
availability of these two nutrients might thereby limit not only
the yield but also affect fruit quality. For instance, some authors20
reported that Fe deficiency, commonly known as Fe chlorosis,
influenced the chemical composition of peaches, increasing the
organic acid and phenolic compound concentration, but had