FERKOLOR of Cultifort, applied in the maturation, favors the obtention of better quality of the fruits, with more sugar, better coloration and greater firmness.

Maturation is the final phase of growth and development of the fruit, which produce several changes, which lead to optimal conditions to be consumed, through the qualities of aroma, color, flavor and texture. After flowering and fertilization there is a significant increase in cell division. The fruit acts as a sink for water, mineral salts and other elements. Maturation usually coincides with changes in skin color. At this time, chlorophylls are replaced by anthocyanins, carotenoids or both at the same time.

The flavor of the fruit is defined by the production of a complex mixture of volatile compounds, in combination with carbohydrates, organic acids and phenolic compounds.

The final quality of the fruit and its postharvest durability depend on all the operations that are carried out during the handling of the crop, especially during the nutrition. Therefore, it is very important to provide adequate potassium supplements that contribute to improving and delaying the process of tissue softening associated with the maturation process.

From Cultifort we propose FERKOLOR, the special liquid fertilizer for the ripening of fruits, in which nitrogen, potassium, calcium and boron are combined.

Nitrogen is the element of greatest influence, in general, in growth and production. When there is deficit of this, the skin of the fruits can take pale colorations, and the size can decrease.

Potassium is especially important in the maturation of the fruit, by improving the assimilation of carbon, increasing the content of sugars and reducing starch. Many experiences have shown its high efficiency in the increase of sizes, weight, color and prevention of “cracking” in sensitive varieties. In citrus, the optimum K content is between 0.7 and 1.0%.

Calcium is associated with the structure of the cell wall to which it belongs as calcium pectate located in the intercellular lamina. As a bioelement, it functions such as regulator of nitrogen absorption, acts in the transport of sugars and proteins inside the plant, increases the resistance of cell membranes, participates in the water economy of the plant, regulating movement of water in the cells.

It has an important role in the ripening and storage processes of the fruits, so that pre-harvest calcium applications help to maintain the firmness of the pulp during transport and storage.

Boron regulates the degradation of glucose. The best-known effect of boron is its function in the transport of sugars. The boron forms complexes with the sugars thus facilitating its circulation through the plant. It also increases the synthesis of glucose, which is the main sugar transported by vegetables. It can play some role in the synthesis of RNA and in the synthesis of Gibberellic Acid (AG), since plants deficient in B show a decrease in the content of RNA and AG.

Numerous field trials carried out in the citrus farms of Cultifort with FERKOLOR, in phases prior to ripening, have confirmed its excellent behavior, enhancing the quality of the fruits, both in their physical properties: size, uniformity, weight, color and texture ; as in its organoleptic qualities: flavor (content in sugars), color and aromas.

In addition, it presents an excellent synergy with the biostimulant BVC 2021, by improving the

size and foliage in the new sprouting of autumn.

In short, the use of FERKOLOR during the ripening of citrus fruits translates into:
• An increase in the content of sugars
• Better skin quality and fruit consistency
• Increased resistance to aging
• Most vivid coloring of the fruits
• An increase in crop yield