Boron

Monofertilizers

Boron (В) – is an important plant nutrient. It belongs to classic microelements. It is necessary for the normal growth and development of many crops, it is generally noted that more than 100 species of higher plants are in need of it. Its content in them reaches 0.0001% of the dry weight and usually ranges from 2 to 85 mg/kg (dry matter).
In plants, this micronutrient is distributed extremely unevenly. Usually about 90% of this element is found in green plant parts, that is, leaves and reproductive organs. Boron is found in all cell organelles. Its maximum amount is found in chloroplasts, nucleus and mitochondria. It has a versatile effect on plant. Boron increases the intensity of photosynthesis, activates respiration, and regulates the outflow of carbohydrates from leaves. At the same time, it is believed that a boron-carbohydrate complex is formed (complex sucroborates are formed), which easily penetrates membranes and cell walls. This element takes part in photosynthetic phosphorylation, formation of macroergic pyrophosphate ATP bonds and processes of cell walls formation. In addition, boron has a positive effect on biosynthesis of nucleic acids, thus supporting normal plant development. It activates a number of enzymes, such as sucrase, peroxidase, catalase, uridine phosphate glucogenase, transglucosidase, and several others. The main physiological role of boron stems from the fact that it takes part in exchange of phytohormones – auxins, activating auxin oxidase. Due to this micronutrient, growth of pollen tubes is enhanced; germination of pollen increases, number of flowers increases and ripening process takes place more soundly.