Composition: Boron chelate – 200 g/l (13%), Boron (B) in pure form – 43 g/l (2.8%), Nitrogen (N) in ammonium form – 50 g/l (3.3%)

The liquid combined fertilizer with the content of nitrogen and boron. It is used for foliar dressing of all agricultural crops sensitive to boron deficiency. Boron is in organic form available to plants (borate-polyol complex).

The purity of the raw material from which the fertilizer is made ensures its safe use and ensures that the resulting products will be of high quality. Compatible with most plant protection products and fertilizers.

Features of the KASTONS BORON microfertilizer:


  • highly concentrated solution, the boron content in KASTONS B is 30% higher than in similar fertilizers from other manufacturers;
  • boron is in a mobile form, which contributes to its rapid absorption by plants;
  • It is represented as a liquid composition, has a low viscosity, which makes measurement for pouring and mixing in the spray tank easier;
  • the working solution is not aggressive to agricultural machinery and can be stored for a long time;
  • it helps to prevent and eliminate boron deficiency even in highly sensitive crops.

The result of applying the KASTONS BORON microfertilizer:


  • increases drought tolerance of crops;
  • prevents diseases that occur due to boron deficiency;
  • stimulates the development of the root system, the growth and development of growth points, the formation of foliage, flowers, fertilization processes and fruit formation;
  • increases yield and improves quality indicators of products;
  • extends the shelf life of the crop.

Packaging: 10 l


0.5-2 l/ha in the budding phase to the beginning of flowering. In case of moderate or severe boron deficiency, repeated use is necessary in 10-14 days. Water consumption rate is 300 l/ha.


0.5-1 l/ha in the tillering phase before beginning of shooting stage. Water consumption rate is 300 l/ha.


2-3 l/ha in the phase of 4-6 leaves with repeated processing in the interval of 10-14 days. Water consumption rate is 300 l/ha.


From one to two dressings with rate of 0.5-1 l/ha in the budding phase. If necessary, repeat after flowering.
Water consumption rate is 400 l/ha.


0.25-1 l/ha from 3 to 8 leaves. If necessary, repeat treatment in the interval of 10-14 days. Water consumption: up to 300 l/ha.


1-3 l/ha per phase from 4-6 leaves before budding.
Water consumption: 300 l/ha.


The first dressing is 1 l/ha in seedlings, during the formation of the first truss. The second dressing is 1 l/ha after bedding out.
Water consumption rate is 200-300 l/ha.


With a single use – 3 l/ha in the phase of the beginning of bolting. For winter rape – 0.5-1 l/ha in the phase of 4-6 leaves in the fall, 0.5-1 l/ha in the phase of the spring rosette. If necessary, repeat the application at intervals of 10-14 days before flowering. Water consumption: 300 l/ha.

For accurate determination of the dosage of microelements, an agrochemical analysis of the soil and/or foliar diagnosis is necessary. This will ensure not only healthy seedings, but also maximum crop yields.