In the previous post, we have already discussed the principles of successful seed treatment: a triad of fungicide-insecticide-nutrition with a biostimulant effect. Specifically, let’s consider the “NUTRITION” aspect of this triad.

Firstly, it is worth reminding that prior to the emergence of seedlings and the first leaves, grain crops mainly feed on carbohydrates found in the seed and its shell. At this stage, the plant is not yet capable of absorbing nutrients through its root system, even if they are present in sufficient quantities in the soil.

Therefore, treating the seed with biologically active substances and microelements is ❗ necessary ❗.

Together with seed swelling, these substances activate the action of enzymes that convert the starch in the endosperm of the seed into water-soluble sugars, provide nourishment to the roots and sprouts, promote even and speedy germination, minimize nutrient deficiencies, and create conditions for achieving maximum yields.

Let’s first discuss the ❗ extremely important category ❗ of MACROELEMENTS and the role of each in seed treatment. Adequate amounts of NPK in the primary application do not necessarily indicate a successful start for the crop! Why?

💠 Nitrogen is essential for proper development of plants, not only for vegetative growth but also for root systems. It affects plant metabolism and serves as a building block for nucleic acids and other important compounds, especially in the initial stages of growth when cell division and tissue construction are occurring rapidly. Nitrogen also plays a crucial role in all metabolic processes, from chlorophyll synthesis to the assimilation of vitamins. While its role in seed treatment is not crucial, a small amount is still necessary.

💠 Potassium is an extremely mobile element in soil, and many factors influence its availability to plants. Regarding seed treatment, it has several important functions. It is a catalyst for many physiological and biochemical processes, participates in the formation of high-energy compounds (ATP), which promotes a quick start and subsequent accumulation of vegetative mass. Potassium is actively involved in the absorption of water and minerals by plant roots, in the movement of assimilates between organs, and in activating enzymes that accelerate the synthesis of proteins and carbohydrates, which is particularly important for young shoots. Additionally, it is crucial that winter crops do not experience a potassium deficiency before winter.

💠 Phosphorus is arguably the most important element in seed treatment. It is critical in the initial stages of growth, but its consumption is severely limited by external factors such as ion antagonism, a narrow pH range in soil solution (6-7), and soil temperature (above 10°C), which are rare in “fall-spring” conditions. A phosphorus deficiency in the initial stages cannot be compensated for later. Therefore, it is necessary to provide seedlings with sufficient easily accessible phosphorus for the construction of a developed root system, which creates the conditions for more efficient consumption of moisture and nutrients from the soil.

😎 So, stay tuned to TerraTimes 🌾 📰🌾 for the latest updates, as in the next issue we will discuss the importance of micronutrients.