Mode of action and benefits
Manganese foliar fertilisers are specially developed for application to the leaves. Manganese (Mn) is an essential trace element for plants, necessary for various processes in plant metabolism. A deficiency of this nutrient can lead to various growth problems in plants, such as reduced growth, leaf discolouration and leaf damage. Acute nutrient deficiencies can be quickly counteracted by application to the leaf.
Chelated nutrients improve absorption and plant availability for optimal nutrient uptake.
The application of manganese leaf fertiliser can be combined with other leaf fertilisers and compost tea.
The chelation
A chelate is a chemical compound in which a metal ion is bound to a larger organic molecule, the chelating agent. This bond forms a complex that is both stable and soluble. The chelating agent usually forms multiple bonds with the metal ion, creating a ring-like structure. This unique structure of the chelate increases the stability and bioavailability of the metal ion and prevents it from precipitating or becoming inaccessible to plants or organisms.
Application and dosage
| Crop | Application rate |
|---|---|
| General | Prevention and correction of manganese deficiency: 2-5 l/ha (0.5-1%) over the leaf, 5-8 l/ha over the soil. |
| Viticulture | 2-3 times 2-3 l/ha from shoots visible as foliar spray |
| Pome fruit | Application as foliar spray: Several times 2-3 l/ha from hazelnut size. For greener background colour 3 times 2 l/ha from walnut size. |
| Stone fruit | 2-3 l/ha from fruit set (foliar spray). |
| Strawberries | 1-2 times 2 l/ha from the beginning of flowering until harvest as foliar spray. |
| Vegetables | 1-2 times 2-3 l/ha as soon as sufficient leaf mass has developed as foliar spray. |
| Potatoes | 1-2 times 2-3 l/ha from 1 week after emergence as foliar spray. |
| Sugar beet | 2-3 times 2 l/ha from 4-leaf stage as foliar spray. |
| Cereals | For winter hardiness, yield, stand strength: in autumn 2-3 l/ha from 3 leaf stage as foliar spray. |
| Rapeseed | 1-2 times 2-3 l/ha from 8-leaf stage as foliar spray. |
