N 39 + TE is a nitrogen fertilizer enriched with magnesium (Mg), iron (Fe) and molybdenum (Mo), for additional foliar feeding. One of the advantages of liquid fertilizers is the possibility to apply them not only in high doses, as part of the first fertilization, but also in lower doses in subsequent additional feedings. Nitrogen fertilizers on the market contain nitrogen in three forms – amide (NH2), ammonium (NH4) and nitrate (NO3). Plants absorb nitrate nitrogen. Ammonium nitrogen is absorbed only after its nitrification and its conversion into nitrate nitrogen.
Magnesium is a major component of chlorophyll and cannot be replaced by another element during photosynthesis. It activates the action of more than a hundred enzymes, increases the activity of phytohormones, participates in the processes of oxidation and decomposition, supports carbohydrate metabolism, accelerates ripening and increases the amount of dry matter in the seeds.
Iron is one of the most important trace elements, as it directly affects the absorption of many other elements. If iron is deficient or insufficient, the plant has difficulty absorbing the nutrients it needs, even when they are present in the soil in sufficient quantities.
Iron activates respiration, affects the processes of chlorophyll formation and the biosynthesis of auxins. Molybdenum is a particularly important trace element because it is involved in nitrogen fixation processes. It stimulates the synthesis of chlorophyll, improves photosynthesis and increases the starch content. Accelerates nitrogen breakdown and protein synthesis and increases their content. Molybdenum has a positive effect on the growth of cereals. It is an important trace element for many plants. This element is most often missing in acidic and light soils. Low temperatures and excessive use of nitrogen fertilizers can also lead to molybdenum deficiency.