Mode of action and benefits
Boron foliar fertilisers are specially formulated for foliar application. Boron (B) is an important nutrient for plants, necessary for various processes in plant metabolism. A deficiency of boron can lead to various growth problems in plants, such as stunted growing tips, reduced growth and reduced yield performance. Application to the leaf can quickly counteract an acute nutrient deficiency and improve plant health.
Made from water-soluble borethanolamine, which is much less harmful to the environment than the raw material borax used in most boron fertilisers.
The application of boron leaf fertilizer can be combined with other foliar fertilizers and compost tea.
Application and dosage
| Crop | Application rate |
|---|---|
| General | For boron supply: Foliar fertilisation 0.5-3 l/ha in 200-400 l water/ha, 4-8 l/ha for soil fertilisation. |
| Viticulture | For good flowering, fruit set and more even leaves: 2 foliar applications of 0.5-1 l/ha as soon as the leaves have increased in size. |
| Pome fruit | For good flowering, fruit set and pod quality: 1 l/ha each at the red bud stage, balloon stage and flowering; 2 l/ha after harvest over the leaf. |
| Stone fruit | For good flowering, high fruit set: over the leaf 2 l/ha from the beginning of flowering + 2 l/ha after harvest. |
| Strawberries | For good flowering, high fruit set and against deformed berries: over the leaf 1 l/ha at the green bud stage, 2 l/ha in autumn. |
| Hops | For good shoot and flower development: from sufficient leaf mass until the beginning of flowering 3-5 applications with 0.1% (100 ml/ 100l spray water). |
| Corn | For pollen quality, grain set: 3 l/ha from 4 to 10 leaf stage over the leaf. |
| Leafy and cabbage vegetables | For internal quality, against heart necrosis: 2-3 l/ha as soon as sufficient leaf mass is developed as foliar fertilisation. |
| Root and fruit vegetables | For good fruit set: 2-3 l/ha over the leaf as soon as sufficient leaf mass has developed. |
| Potatoes | For internal quality: 1-2 times 1 l/ha over the leaf from the end of the row. |
| Rape | For uniform flowering and ripening, yield: over the leaf 3 l/ha in autumn from 4 to 6 leaf stage, repeat in spring before flowering starts in case of severe deficiency. |
| Winter cereals | To prevent yield losses during drought, 1-2 applications of 0.5 l/ha each (BBCH 30 – 37). |
| Sugar beet | Against heart and dry rot: 1-2 times 3 l/ha from 4 to 6 leaf stage until row closure over the leaf. |
