Appropriate fertilization with nitrogen is vital for the yield

| Production & Resources |

The importance of nitrogen for the growth and development of plants cannot be overestimated. The element improves not only the quantity, but also the quality of the yield, influencing numerous parameters of the cereal. However, it is crucial to apply dosages of nitrogen which are suited to the requirements of the plant and the soil.

Life-giving nitrogen

No other nutrient has such an influence on the quality and the quantity of the crops. Nitrogen is indispensable for plants to grow and form seeds. What the agricultural manufacturers need to pay attention to is not only the nitrogen itself, but the substance from which it is delivered to the plants. Mineral nitrogenous fertilizers are the best source of nitrogen which may be absorbed easily. If the plant is to enjoy optimal conditions for growth, the timing and the dosage of the fertilizer applied should be planned wisely.

Planning the fertilization

The choice of nitrogen dosages depends on a number of parameters: weather conditions, temperature, the requirements of particular plants, and the parameters of the soil. When rainfall is heavier, washout of nitrogen from the soil is accelerated, and the fertilizer ought to be applied more frequently and in smaller amounts. The quantity of the fertilizer should be adjusted to the needs of the plant, as well as to the expected crop. The higher the expected yield, even in theory, the larger the dosage of nitrogen needs to be.

pH of the soil and the quantity of the yield

Soil pH has an impact on the absorption of nutrients by the plant. Inadequate amount of fertilizer results in soil acidification. Many farmers are not aware of this and use acidic fertilizers on acidic soil, without modifying its pH beforehand. As a result, despite providing the plant with appropriate amounts of nitrogen, low soil pH makes it more difficult to absorb the nutrients, which hampers growth and development. Soil pH ought to be taken into consideration at all times. If the soil is acidic, fertilizers with neutral pH (urea, for example) or alkaline pH need to be applied. If pH of the soil is higher, ammonium sulphate may be used.

Selecting appropriate dosages

Applying excessive amount of fertilizer is a frequent mistake. We need to bear in mind that inappropriate dosages of nitrogen are not absorbed well by the plants. The element is washed out with groundwater and may cause damage to the natural environment.

Uneven distribution of the fertilizer is equally dangerous. It might lead to a situation in which a part of the plants receive double the required amount of nitrogen, which is difficult to absorb, while the remaining plants are left without the support of the fertilizer. Moreover, the total dosage of nitrogen ought not to be distributed in one go, but needs to be divided into a few parts. Otherwise, plants will not be able to use the portion of the fertilizer in full, while the excessive nitrogen which remains in the soil is going to be washed our with rainwater.