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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
|
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 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 |
| SUGAR BEET Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
|
◆ 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 |
| SUNFLOWER Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ leaf development and beginning of side shoot development | 0.5–2 kg/ha |
| ◆ beginning of flower bud development | 0.5–2 kg/ha |
| COTTON Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ beginning of leaf development | 0.5–1 kg/ha |
| ◆ beginning of side shoots formation | 0.5–1 kg/ha |
| ◇ beginning of flower bud development | 0.5–1 kg/ha |
| APPLE – orchards without fertigation – young, non-fruiting orchard 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 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 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 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 |
| CHERRY (SWEET CHERRY TREE) – orchards without fertigation – fruiting orchard Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
|
◇ inflorescence emergence |
0.5–2 kg/ha |
| ◇ fruitlet development | 0.5–2 kg/ha |
| ◇ after harvest | 0.5–2 kg/ha |
| CHERRY (SOUR CHERRY TREE) – orchards without fertigation – fruiting orchard Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◇ inflorescence emergence | 0.5–2 kg/ha |
| ◇ fruitlet development | 0.5–2 kg/ha |
| ◇ after harvest | 0.5–2 kg/ha |
| CITRUS 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 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 |
|
| ◆ 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 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ after fruit harvest | 0.5–2 kg/ha |
| GRAPEVINE 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 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 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 |
| RED HEAD CABBAGE 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 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 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 |
|
| ◆ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 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 |
| PARSLEY 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 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 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 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 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 Proposed periods of use (◆ optimum periods; ◇ optional/complementary periods): |
|
| ◆ 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 |
