How corn absorbs Nitrogen during the growing season

Stages of nitrogen absorption:

Initial Phase (V1-V6):

• At the very beginning of the growing season, when corn is just germinating (V1 to V6), nitrogen demand is relatively low. At this time, the plant is concentrating on forming its root system and first leaves. Although nitrogen is important for this process, its uptake at this stage is minimal.

Active Growth Phase (V6-VT):

• From V6 (the sixth leaf stage) to VT (the tassel stage), the need for nitrogen increases significantly. At this time, the plant forms the bulk of the stems and leaves and prepares for flowering. During this phase, corn absorbs most of its total nitrogen. This means that this is the best time to apply fertilizer – just before or during this period. This way, the nitrogen will not be washed away by the rains and will be fully absorbed by the plant.

Reproductive Phase (VT-R1):

• At the beginning of flowering (VT) and the formation of the first ear (R1), the need for nitrogen remains high. Nitrogen is needed to support the development of cobs and kernels, which lays the foundation for future yields.

Grain Pouring Phase (R1-R6):

• The final stage of corn development is grain filling. Although the need for nitrogen is somewhat reduced, it is still important for maintaining healthy grain development. The nitrogen stored in the stems and leaves is transported to the kernels, ensuring that they are properly filled and of good quality.

Remember!

Corn requires approximately 500 g of nitrogen per 25 kg. To maximize the efficiency of nitrogen use, it is important to distribute fertilizers correctly throughout the season (pre-sowing, starter fertilization and fertilization)