Crystalline, water-soluble foliar fertiliser with high concentration of boron and sulphur, with magnesium and microelements.
FOLIAR SPRAYS
PLONVIT BOROSULF is intended for foliar application in the form of an aqueous solution. PLONVIT BOROSULF can be used together with other agrochemicals after conducting a miscibility test. Test results are presented in the table INTERMAG agrochemicals mixing table.
Detailed recommendations for foliar application are presented in the table below. You can also use the search engine and quickly find the dose rate and time of foliar application for your crop. Select your crop
Recommendations for foliar application for selected crops.
The recommendations may be modified taking into account the plants' requirements and growing conditions.
| OILSEED RAPE - winter oilseed rape | |
|
Number of foliar treatments: 3–4. |
|
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Autumn: |
0.5–3 kg/ha |
|
Spring: |
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 |
| OILSEED RAPE - spring oilseed rape | |
| Number of foliar treatments: 2–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 |
| MAIZE | |
|
Number of foliar treatments: 2–3. |
|
| ◆ 2–6 leaves unfolded (BBCH 12–16), 4 leaves is the optimum stage for treatment | 0.5–2 kg/ha |
| ◆ 7–8 leaves unfolded (BBCH 17–18) | 0.5–2 kg/ha |
| ◇ stem elongation – until beginning of tassel formation (BBCH 31–51), until the height of the plants allows spray treatment | 0.5–2 kg/ha |
| SUGAR BEET | |
|
Number of foliar treatments: 3. |
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| ◆ 4–6 leaves unfolded (BBCH 14–16) | 0.5–2 kg/ha |
| ◆ 8 leaves unfolded – until beginning of crop cover (BBCH 18–31) | 0.5–2 kg/ha |
| ◆ leaves cover 20–50% of the ground (BBCH 32–35) | 0.5–2 kg/ha |
| POTATO | |
|
Number of foliar treatments: 2–4. |
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| ◇ 3–6 leaves unfolded on the main shoot (BBCH 13–16) | 0.5–2 kg/ha |
| ◆ beginning of crop cover until 80% of plants meet between the rows (BBCH 31–38) | 0.5–2 kg/ha |
| ◆ tubers reach 20–30% of typical weight (BBCH 42–43) | 0.5–2 kg/ha |
| ◇ tubers reach 60–70% of typical weight (BBCH 46–47) | 0.5–2 kg/ha |
| RICE | |
| Number of foliar treatments: 3–4. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
|
◆ 4–6 leaves unfolded (BBCH 14–16) |
0.5–2 kg/ha |
|
◆ beginning of tillering (BBCH 21–23) |
0.5–2 kg/ha |
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◆ stem elongation (BBCH 31–39) |
0.5–2 kg/ha |
| ◇ beginning of panicle emergency (BBCH 51–52) | 0.5–2 kg/ha |
| SUNFLOWER | |
|
Number of foliar treatments: 2–3. |
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| ◆ 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 |
| SOYBEAN | |
|
Number of foliar treatments: 2. |
|
| ◆ leaf development and beginning of side shoot development | 0.5–2 kg/ha |
| ◆ beginning of flower bud development | 0.5–2 kg/ha |
| COTTON | |
| Number of foliar treatments: 2–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 4th–6th true leaf unfolded (BBCH 14–16) | 0.5–1 kg/ha |
| ◆ formation of side shoots – until 50% of plants meet between rows (BBCH 21–35) | 0.5–1 kg/ha |
| ◇ inflorescence emergence – until beginning of flowering (BBCH 51–61) | 0.5–1 kg/ha |
| APPLE – orchards without fertigation – young, non-fruiting orchard | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ Spring: leaf development | 0.5–2 kg/ha |
| ◇ Spring/summer: growth of main stem and side shoots | 0.5–2 kg/ha |
| APPLE – orchards without fertigation – fruiting orchard | |
| Number of foliar treatments: up to 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ pink bud stage | 0.5–2 kg/ha |
| ◇ beginning of fruit development | 0.5–2 kg/ha |
| ◇ before beginning of leaf colour turning | 0.5–2 kg/ha |
| APPLE – nursery plantations – budded nursery tree plantation | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 1st year – summer (about 3–4 weeks after budding): end of shoot and leaf growth | 0.5–2 kg/ha |
| ◇ 2nd year – spring/summer: growth of main stem and side shoots | 0.5–2 kg/ha |
| APPLE – nursery plantations – grafted nursery tree plantation | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 1st year – summer: growth of main stem and leaf development | 0.5–2 kg/ha |
| ◇ 2nd year – spring/summer: growth of main stem and side shoot | 0.5–2 kg/ha |
| CITRUS | |
| Number of foliar treatments: 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ growth of shoots | 0.5–2 kg/ha |
| ◆ “white bud” phase | 0.5–2 kg/ha |
| ◆ intensive fruit growth | 0.5–2 kg/ha |
| OLIVE GROVES – fruiting tree | |
| Number of foliar treatments: 2–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods) |
|
| ◆ 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 |
|
RASPBERRY – plantations without fertigation – varieties fruiting in summer on two-year shoots |
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| Number of foliar treatments: 2–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods) |
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| ◆ leaf and shoot development | 0.5–2 kg/ha |
| ◇ beginning of inflorescence emergence | 0.5–2 kg/ha |
| ◆ immediately after harvest | 0.5–2 kg/ha |
| RASPBERRY – plantations without fertigation – varieties fruiting in autumn on one-year shoots | |
| Number of foliar treatments: 1–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods) |
|
| ◆ 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 |
| STRAWBERRY – cultivation without fertigation – Summer-bearing varieties, fully fruiting plantations | |
| Number of foliar treatments: 1. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ after fruit harvest | 0.5–2 kg/ha |
| GRAPEVINE | |
| Number of foliar treatments: up to 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 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 |
| BROCCOLI | |
| Number of foliar treatments: 2–3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7 leaves until 2 side shoots visible (BBCH 17–22) | 0.5–1 kg/ha |
| ◇ 3–8 side shoots visible (BBCH 23–28) | 0.5–1 kg/ha |
| CAULIFLOWER | |
|
Number of foliar treatments: 2–3. |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7–8 true leaves unfolded (BBCH 17–18) | 0.5–1 kg/ha |
| ◇ 9 and more true leaves unfolded (BBCH 19) | 0.5–1 kg/ha |
| WHITE HEAD CABBAGE | |
|
Number of foliar treatments: 3. |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7–9 true leaves unfolded (BBCH 17–19) | 0.5–1 kg/ha |
| ◆ head begins to grow (BBCH 41) | 0.5–1 kg/ha |
| RED HEAD CABBAGE | |
| Number of foliar treatments: 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7–9 true leaves unfolded (BBCH 17–19) | 0.5–1 kg/ha |
| ◆ head begins to grow (BBCH 41) | 0.5–1 kg/ha |
| SAVOY CABAGE | |
| Number of foliar treatments: 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7–9 true leaves unfolded (BBCH 17–19) | 0.5–1 kg/ha |
| ◆ head begins to grow (BBCH 41) | 0.5–1 kg/ha |
| CHINESE CABBAGE | |
| Number of foliar treatments: 3. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 5–6 true leaves unfolded (BBCH 15–16) | 0.5–1 kg/ha |
| ◆ 7–9 true leaves unfolded (BBCH 17–19) | 0.5–1 kg/ha |
| ◇ head begins to grow (BBCH 41) | 0.5–1 kg/ha |
| BRUSSELS SPROUTS | |
|
Number of foliar treatments: 2–3. |
|
| ◆ 5–7 true leaves unfolded (BBCH 15–17) | 0.5–1 kg/ha |
| ◆ main shoot reaches 30–70% of typical size (BBCH 33–37) | 0.5–1 kg/ha |
| ◇ development of lateral buds until first sprouts close tightly (BBCH 41–43) | 0.5–1 kg/ha |
| KOHLRABI | |
|
Number of foliar treatments: 2. |
|
| ◆ 5–9 or more leaves (BBCH 15–19) | 0.5–1 kg/ha |
| ◆ head begins to expand (BBCH 41) | 0.5–1 kg/ha |
| RADISH | |
|
Number of foliar treatments: 2. |
|
| ◆ 5–9 or more leaves (BBCH 15–19) | 0.5–1 kg/ha |
| ◆ head begins to expand (BBCH 41) | 0.5–1 kg/ha |
| KALE | |
|
Number of foliar treatments: 2–3. |
|
| ◆ 5–7 true leaves unfolded (BBCH 15–17) | 0.5–1 kg/ha |
| ◆ main shoot has reached 30–50% of final height (BBCH 33–35) | 0.5–1 kg/ha |
| ◇ 30–50% of typical leaf mass reached (BBCH 43–45) | 0.5–1 kg/ha |
| CARROT | |
|
Number of foliar treatments: up to 2. |
|
| ◇ 3–4 true leaves (BBCH 13–14) | 0.5–1 kg/ha |
| ◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
| PARSLEY | |
| Number of foliar treatments: up to 2. . Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 3–4 true leaves (BBCH 13–14) | 0.5–1 kg/ha |
| ◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
| PARSNIP | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 3–4 true leaves (BBCH 13–14) | 0.5–1 kg/ha |
| ◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
| CELERY | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 5–6 true leaves (BBCH 15–16), approx.. 7 days after planting seedlings | 0.5–1 kg/ha |
| ◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
| BEETROOT | |
| Number of foliar treatments: up to 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 3–4 true leaves (BBCH 13–14) | 0.5–1 kg/ha |
| ◇ root begins to expand (BBCH 41–43) | 0.5–1 kg/ha |
| BULB VEGETABLES | |
| Number of foliar treatments: 2. Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 3–5 leaves clearly visible (BBCH 13–15) | 0.5–1 kg/ha |
| ◆ harvestable plant parts begin to develop (BBCH 41) | 0.5–1 kg/ha |
| PEA | |
|
Number of foliar treatments: 1–2. |
|
| ◆ 8 true leaves until 5 visible internodes on the stem (BBCH 18–35) |
0.5–1 kg/ha |
| ◇ first flower buds visible outside leaves until first separated flower buds visible outside leaves, but remain closed (BBCH 51–55) | 0.5–1 kg/ha |
| BEAN | |
|
Number of foliar treatments:1–2. |
|
| ◆ formation of side shoots (BBCH 21–29) |
0.5–1 kg/ha |
| ◇ first flower buds visible until first flower buds have enlarged (BBCH 51–55) | 0.5–1 kg/ha |
