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Reebe mit reifen, weißen Tafeltrauben
Icon eines roten Kreises mit der Kontur einer dreiblättrigen Pflanze

Dessert grapes and foliar fertilisation

The essential micronutrients are iron, magnesium and manganese for wine growing. The best way to deliver these is by foliar application.

The leaf analysis can verify status of all nutrients and help to design and optimize the nutrition program.

Spray schedule viticulture - When to apply Lebosol® fertiliser?

Download our unique spray schedule for grapes and wine grapes now as an exclusive PDF! This special application calendar/fertilisation plan contains carefully selected foliar fertilisers from Lebosol® for grapes and wine grapes. You will find valuable information about which fertilizers can be used for which purpose, for example in viticulture.

You will easily find the optimal moment to apply our high-quality products to ensure efficient and effective fertilisation. Never miss the ideal moment to maximise the full growth potential of your wine and wine grapes with Lebosol®.

Download our unique spray schedule now and take your fertilisation practices to the next level!

Open spray schedule

Nutrient availability

Even if the soil is optimally supplied with nutrients, the fruit tree's needs-based supply of main, secondary and trace elements is not always meet. Many factors limit the availability and uptake from the soil, e.g. high pH values for trace elements and low pH values for main and secondary elements, drought, cool weather, soil compaction and/or waterlogging, competition from soil greening and antagonisms (interactions) between the elements (e.g. too much potassium limits the availability and uptake of magnesium and calcium).

Specific requirements for wine grapes

Besides the macro nutrients and magnesium, the micro elements: iron, manganese and boron are essential for wine grapes cultivation.

Yield stabilization

The application of Aminosol® before flowering will enhance fruit setting and fruit growth because of the combination of amino acids and the auxin effect. In addition, a sufficient supply with boron will be necessary for fruit growth and stability. For best and high yield, the combination of Aminosol® and Lebosol®-Robustus SC (boron + calcium) should be applied before flowering

Sugar formation

Potassium is stimulating the sugar formation/content and will enhance fruit maturity and frost hardiness. A significant deficiency of potassium causes disfunctioning of leaves during the summer. The quality of fruits will suffer as well. The application of Lebosol®-Potassium 450 optimizes the K2O nutrition for the best quality of grapes.

Iron chloroses

Wine grapes are susceptible to iron chloroses. Most frequently it’s not a real deficiency, but rather a limited iron uptake. A deficiency will be manifested by yellowness of the youngest leaves with dark veins. Different factors, e.g. soil structure, moisture and pH value influence the iron availability.

Stem paralysis

Lebosol®-Magnesium 400 SC helps to prevent magnesium deficiency and can be applied repeatedly on the leaves. Magnesium deficiency symptoms are yellow and brown leaves. If the K vs. Mg nutrition is not balanced, susceptibility for stem paralysis is increased with the result of slowed maturity, decreased yield and quantity.

Healthy berries

Calcium is essential for the cell wall and thereby the stability of the fruits. Lebosol®-Calcium-Forte SC, free of chloride, will improve the calcium concentration in the fruit and enhance quality and shelf life.

Strong and healthy grapes

Phytoamin®- a cold pressed seaweed formulation enhances the resistance against diseases and make grapes more robust and vigorous. This also have a positive impact on the assimilation and the grape and wine quality as consequence.