Crystalline, water-soluble foliar fertilizer with a high concentration of boron and sulfur
PLONVIT® BOROSULF is a crystalline, water-soluble fertilizer designed for foliar application. It contains boron (80 g B/kg) and sulfur (110 g S/kg) as well as nitrogen, magnesium, manganese, molybdenum and zinc.
PLONVIT® BOROSULF is particularly recommended for foliar feeding of plants with high requirements for boron and sulfur (e.g. rapeseed, sugar beet, sunflower, potato, corn, brassica vegetables, root vegetables, fruit trees and bushes).
PLONVIT® BOROSULF applied foliarly during periods of increased plant demand for boron and sulfur, effectively supplements and/or corrects soil fertilization for sulfur and realizes the nutritional needs of plants for boron. The other nutrients contained in the fertilizer, enhance the fertilizer’s beneficial effect on improving plant health and yield.
Nutrients | g/kg | % (m/m) |
Total nitrogen (N) | 60 | 6.0 |
Nitrogen (N) ammonium (NH4) | 60 | 6.0 |
Magnesium oxide (MgO) soluble in water | 53 | 5.3 |
Sulfur trioxide (SO3) soluble in water | 275 | 27.5 |
Boron (B) in the form of sodium salt | 80 | 8.0 |
Manganese (Mn) chelated by EDTA | 10 | 1.0 |
Molybdenum (Mo) in the form of ammonium salt | 0.4 | 0.04 |
Zinc (Zn) chelated by EDTA | 1 | 0.1 |
Apply PLONVIT® BOROSULF foliarly as an aqueous solution. Fertilizer can be used together with other preparations, after a test confirming the possibility of mixing.
Foliar treatments – Proposed recommendations for selected crops.
They can be modified taking into account the individual needs of plants and growing conditions.
Application times (◆ optimal, ◇ optional): | Direction for use: |
Autumn: ◆ 4–8 leaves unfolded |
0.5–3 kg/ha |
Spring: ◆ beginning of main stem elongation |
0.5–3 kg/ha |
◆ bud formation – until beginning of flowering | 0.5–3 kg/ha |
◇ from the beginning of petal fall – until the beginning of pods development | 0.5–3 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ leaf development – until beginning of main stem elongation | 0.5–3 kg/ha |
◆ bud formation – until beginning of flowering | 0.5–3 kg/ha |
◇ from the beginning of petal fall – until the beginning of pods development | 0.5–3 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ 2–3 pairs of leaves (BBCH 14–16) | 0.5–3 kg/ha |
◆ stem elongation (BBCH 30–35) | 0.5–3 kg/ha |
◇ inflorescence development (BBCH 51–55) | 0.5–3 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ 2–6 leaves unfolded (4 leaves is the optimum stage for treatment) | 0.5–2 kg/ha |
◆ 7–8 leaves unfolded | 0.5–2 kg/ha |
◇ stem elongation – until beginning of tassel formation | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of leaf development | 0.5–2 kg/ha |
◆ beginning of crop cover | 0.5–2 kg/ha |
◆ beginning of storage root development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots and leaves (plant height about 10 cm) | 0.5–2 kg/ha |
◇ growth of shoots and leaves (plant height ˃15 cm) | 0.5–2 kg/ha |
◆ beginning of tuber growth | 0.5–2 kg/ha |
◇ tubers reach ca. 50% of the final mass | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ leaf development – tillering | 0.5–2 kg/ha |
◆ beginning of stem formation | 0.5–2 kg/ha |
◇ beginning of panicle emergence | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of growth of shoots | 0.5–2 kg/ha |
◆ beginning of flower bud development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ beginning of leaf development | 0.5–2 kg/ha |
◆ beginning of side shoots formation | 0.5–2 kg/ha |
◇ beginning of flower bud development | 0.5–2 kg/ha |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ Spring: leaf development | Foliar treatments – single dose 0.5–2 kg/ha |
◇ Spring/summer: growth of main stem and side shoots |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ 1st year – summer (about 3–4 weeks after budding): end of shoot and leaf growth | Foliar treatments – single dose 0.5–2 kg/ha |
◇ 2nd year – spring/summer: growth of main stem and side shoots |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ 1st year – summer: growth of main stem and leaf development | Foliar treatments – single dose 0.5–2 kg/ha |
◇ 2nd year – spring/summer: growth of main stem and side shoots |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development | |
◇ after harvest |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development | |
◇ after harvest |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ inflorescence emergence | Foliar treatments – single dose 0.5–2 kg/ha |
◇ fruitlet development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ growth of shoots | 0.5–2 kg/ha |
◆ “white bud” phase | 0.5–2 kg/ha |
◆ intensive fruit growth | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ new shoot development | 0.5–2 kg/ha |
◆ inflorescence emergence | 0.5–2 kg/ha |
◇ fruit flesh development (beginning of oil production) | 0.5–2 kg/ha |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◆ leaf and shoot development | Foliar treatments – single dose 0.5–2 kg/ha |
◇ beginning of inflorescence emergence | |
◆ immediately after harvest |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ leaf and shoot development | Foliar treatments – single dose 0.5–2 kg/ha |
◇ beginning of inflorescence emergence | |
◇ beginning of the first fruit development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ shoots reach about 1/3 of the final length | 0.5–2 kg/ha |
◇ beginning of the first inflorescence development | 0.5–2 kg/ha |
◇ beginning of the first fruit development | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after fruit harvest | 0.5–2 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ beginning of leaf and new shoot development | 0.5–2 kg/ha |
◇ inflorescence emergence | 0.5–2 kg/ha |
◇ fruit development – until berries pea-sized | 0.5–2 kg/ha |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ intensive plant growth | Foliar treatments – single dose 0.5–1 kg/ha. |
◇ beginning of inflorescence emergence | |
◇ beginning of flowering | |
◇ fruit development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ intensive plant growth | Foliar treatments – single dose 0.5–1 kg/ha. |
◇ the first inflorescence emergence | |
◇ beginning of flowering | |
◇ beginning of fruit development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◇ intensive plant growth | Foliar treatments – single dose 0.5–1 kg/ha. |
◇ the first flower bud emergence | |
◇ beginning of flowering | |
◇ beginning of fruit development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 7–10 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ after the first harvest |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 7–10 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ after the first harvest |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 7–10 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ after the first harvest |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 10–14 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ beginning of fruit development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 10–14 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ beginning of fruit development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ intensive plant growth: 1–2 treatments every 10–14 days | Foliar treatments – single dose 0.5–1 kg/ha |
◆ beginning of fruit development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3rd–5th leaf clearly visible | Foliar treatments – single dose 0.5–1 kg/ha |
◇ growth of leaves | |
◇ beginning of onion bulb formation |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ growth of leaves: 2 treatments every 10–21 days | Foliar treatments – single dose 0.5–1 kg/ha |
◇ beginning of onion bulb formation |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3rd–5th leaf clearly visible | Foliar treatments – single dose 0.5–1 kg/ha |
◇ growth of leaves | |
◇ beginning of onion bulb formation |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ growth of leaves – until beginning of onion bulb formation | Foliar treatments – single dose 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3rd–5th leaf clearly visible | Foliar treatments – single dose 0.5–1 kg/ha |
◇ growth of leaves | |
◇ beginning of garlic bulb formation |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ beginning of growth of plants: 2–3 treatments every 10–21 days | Foliar treatments – single dose 0.5–1 kg/ha |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | Foliar treatments – single dose 0.5–1 kg/ha |
◆ growth of leaves | |
◇ beginning of the flower head development |
Application times for foliar treatments (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | Foliar treatments – single dose 0.5–1 kg/ha |
◆ growth of leaves | |
◇ beginning of the flower head development |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of leaves | 0.5–1 kg/ha |
◇ beginning of the flower head development | 0.5–1 kg/ha |
◇ head reaches approx. 50% of the typical size | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of leaves | 0.5–1 kg/ha |
◇ beginning of the flower head development | 0.5–1 kg/ha |
◇ head reaches approx. 50% of the typical size | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of leaves | 0.5–1 kg/ha |
◆ beginning of the flower head development | 0.5–1 kg/ha |
◇ head reaches approx. 50% of the typical size | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of leaves | 0.5–1 kg/ha |
◇ beginning of the flower head development | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of leaves | 0.5–1 kg/ha |
◆ beginning of the flower head development | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ growth of leaves | 0.5–1kg/ha |
◇ beginning of the root thickening formation | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ growth of leaves | 0.5–1kg/ha |
◇ beginning of the root thickening formation | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◆ after seedling adaptation to field conditions – leaf development | 0.5–1kg/ha |
◆ growth of the main stem and leaves | 0.5–1 kg/ha |
◇ approx. 50% of the leaf mass formed | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3–4 true leaves (BBCH 13–14) | 0.5–1kg/ha |
◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3–4 true leaves (BBCH 13–14) | 0.5–1kg/ha |
◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3–4 true leaves (BBCH 13–14) | 0.5–1kg/ha |
◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 5–6 true leaves (BBCH 15–16), approx. 7 days after planting seedlings | 0.5–1kg/ha |
◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
Application times (◆ optimal, ◇ optional): | Direction for use: |
◇ 3–4 true leaves (BBCH 13–14) | 0.5–1kg/ha |
◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |