The number of farmers interested in walnut culture in Georgia is increasing every year. In order to obtain high-quality products, it is necessary to consider several factors, especially if the entrepreneur wants to export his products abroad. Extra and Pirelli grade walnuts must meet the following factors:
It should not be damaged by fungal disease or pest and also the heart should not be uneven, dark in color and not filled.
In today’s article, we will discuss one of the factors for obtaining a quality and high market value product. In order for the heart of the walnut to be filled and to have the proper color, the walnut tree needs an adequate amount of potassium in the soil.
Symptoms of potassium deficiency begin in early summer when the leaves of the walnut tree turn pale, and later the edges curl upwards and retract. Due to the fact that potassium is easily transported in the plant, the symptoms of its deficiency first appear on the leaves of the lower and middle tiers. What is most important for walnut farmers, with the lack of this element, the walnut is not fully filled and its heart becomes dark in color, which significantly reduces its market value.
To obtain high-quality walnuts, it is necessary to use potassium fertilizers. Agrocompany Baraka recommends using granupotas and solupotas from the Belgian company Tessenderlo Kerley to eliminate potassium deficiency.
In autumn or early spring, it is recommended to use granular potash containing a large amount of potassium (K2O- 50%) and sulfur (SO3- 45%) on the soil. The content of sulfur in granupotas leads to the assimilation of nutrients and the reduction of soil pH.
Solupotas can be used with a drip irrigation system. Its content includes potassium (K2O -51%) and sulfur (SO3 – 46%).
Granupotas and Solupotas are distinguished from competing fertilizers by their high solubility and low salt content, which is especially important for nut crops.