Hello,
Our pain is great, we wish mercy to our citizens who lost their lives in the earthquake, our condolences to their families and relatives, and a speedy recovery to the injured. We must continue to produce and work in order to get through this process together and walk together. Now, with this sense of responsibility, I would like to talk to you about what needs to be done in March. Nitrogen fertilizers should be applied during this month. For this, you should act according to your soil analysis results that you have done after the harvest. Nitrogen fertilizer should be divided into two and applied. The first application should be done in March, and the second application should be done in late May-early June.
EFFECTS OF NITROGEN ON PLANTS
The plant uses a large amount of nitrogen in the development of its green parts. It is the most effective and most needed plant nutrition in the continuation of the vital activities of the plant and for the fruit of the next year. In the case of insufficient nitrogen, the shoots of the plant cannot develop, the leaves become smaller, yellowing starts from the old leaves, and premature shedding of leaves and fruits is observed. Nitrogen excess causes late ripening in the fruit, thickening of the fruit shell, decrease in the number of fruits, low yield, and a decrease in the resistance of the plant against cold and diseases.
I would like to briefly talk about the first 3 types of fertilizers that come to mind when nitrogen fertilizer is mentioned.
UREA ( %46 N ) : It is the most nitrogen-containing fertilizer. Urea fertilizer can be applied to the soil as well as successfully applied in irrigation water or by spraying. Although it contains 46% nitrogen, it cannot be directly taken up by plant roots. It is transformed by bacteria in the soil and becomes useful. It is a slow acting fertilizer.
AMMONIUM SULFATE (AS %21) : One of the most common types of fertilizer, it is also known as "sugar fertilizer" because of it’s appearance. It contains 21% nitrogen and 24% sulfur. In long-term use, it increases soil acidity. For this reason, attention should be paid to intensive use and action should be taken according to the results of soil analysis. This fertilizer should not be used if the soil has an acid reaction.
CALCIUM AMMONIUM NITRATE (CAN (%26 N)) : It contains ammonium and nitrate nitrogens together. It contains 26% Nitrogen. The plant can easily meet its nitrogen needs with this fertilizer. It is a fertilizer with less losses due to its presence in two different forms. Being a neutral fertilizer, CAN can be used in all kinds of soils and does not cause any change in soil pH.
FERTILIZATION
Applications made in the middle of the Hazelnut Orchard are extremely wrong applications. The roots, that is, the capillary roots, which enable the hazelnut to take its nutrients, are located in the branch projections of the tree. What we call the branch projection is the part in the soil that reaches the point where the nut branch end ends. In flat terrain, roots are evenly distributed according to branch projections. Most of the roots that take the nutrients of the hazelnut on sloping lands are located on the sides and lower parts of the hazelnut orchard. While fertilizing, fertilization should be done with a narrower angle in the upper parts of the Hazelnut Orchard and a wider angle in the lower parts, which we actually liken to the crescent shape. As you know, fertilizers are very expensive, so you should definitely apply fertilizers by mixing them with the soil in order not to waste the expenses. Fertilizers that are not mixed into the soil mix into the air in the form of gas or are washed away, causing losses. The mixing process to the soil can be done with a hoe, a smart shovel or a machine according to the slope of the garden.
