Application of foliar feeding of grapes

Grapes in natural conditions unpretentious plant. If you are a novice grower and want to help your grapes live a full life, increase and improve the quality of the crop, you need to know everything about making the fertilizers and trace elements it needs. How and when to use them. Top dressing of grapes is divided into root and foliar. Feeding the root system involves adding fertilizer to the soil and watering with solutions containing all the useful components your plant needs. This dressing is basic.

To get a good harvest of grapes, the vine must be provided with regular top dressing.

Foliar or foliar top dressing, this is the use of the ability of grape leaves to receive nutrients when sprayed, is used as an auxiliary method. It is successfully used, carried out several times in different periods, before the flowering of the grape bush, after it has faded, before fruiting. Leaf top dressing can be carried out simultaneously with preventive spraying of grapes from diseases. The effectiveness of this action significantly increases the yield, sugar content, and quality of grapes. Do not neglect foliar feeding, with a minimum of labor, your grapes will answer you with excellent results.

Time spending

Foliar feeding is especially useful in cooler regions, where the plant can suffer after harsh winters and the root system cannot fully cope with the intake of the necessary micro and macro elements. The first foliar spraying is carried out 10 days before flowering. And actively complements the root fertilizer. The elements absorbed by the leaves come in full in 4-5 days and act for about 2-4 weeks. The number of dressings per season 6 - 8 times they are carried out:

5 - 10 days before flowering grapes;
after the flowering of the plant;
during the softening of the berries;
during active maturation of the vine.

At different times, the plant needs different nutrients, so top dressing may differ in composition.

During the period of active flowering of grapes, foliar feeding is not carried out.

Rules for holding

For effective foliar feeding of grapes, it is necessary to follow the basic rules:

foliar irrigation is done on cloudy days or in the evening;
when dissolving micro and macro fertilizers, observe the correct proportions and concentration of the solution so as not to harm the plant, do not leave burns on the leaves, a lower concentration is better, it is better to underfeed than overfeed;
in dry times, you can spray the next day with clean water to reduce the concentration;
add 30 g of glycerin or 3 tbsp to a solution of 10 liters. tablespoons of sugar, this will allow it to evaporate more slowly from the leaf and improve the quality of absorption of nutrients;
the sprayer should spray the liquid in the form of a mist, large drops, without evaporating, can cause foliage burns;
when irrigating, use preparations for the prevention of grape diseases with contact fungicides, they are compatible with fertilizers (Folpan, Quadris, Strobi, with repeated prevention, in order to avoid adaptation in pathogenic organisms, change the preparations to Ridomil Gold, Skor, Topaz, Bravo).

Ridomil Gold can be used to prevent pests

Required consumption of useful elements

For proper foliar irrigation, we present the necessary solution of the necessary elements, methods of preparation and recipes for irrigation compositions for 10 liters of water:

superphosphate 100 - 200 g;
ammonium sulfate 50 - 100 g or ammonium nitrate 50 - 60 g;
potassium sulfate 30 - 70 g or potassium chloride 50 - 60 g;
manganese sulfate 15 g;
zinc sulfate 5 - 10 g;
boron in the form of borax 10 g or boric acid 0.5 g;
chromate, molybdate, or sodium tungstate 0.3 - 0.5 g;
manganese sulfate 10 g;
cobalt sulfate 0.5 g.

Zinc and boron are recommended to be used separately if you use them to improve the fertilization of grape inflorescences. Mixtures are prepared taking into account the substances necessary at this moment. Superphosphate is poorly soluble, an extract is made from it. To do this, 100 -200 g of superphosphate is diluted in 1 or one and a half liters of water and infused for 24 hours. Then the solution is poured, leaving a precipitate, and water is added up to 2 liters. In another container, ammonium sulfate 50 - 100 g and potassium sulfate 30 - 70 g are dissolved in 2 liters. The solutions are combined and water is added to 10 liters. Then other trace elements are added: zinc, boron, manganese, which is necessary and available. This is the water extract.

Mineral foliar top dressing can be made with ash. The extract is prepared at the rate of 50 - 100 g of ash per 10 liters. Infuse for 2-3 days, stirring, preferably in a plastic container.

Ammonium molybdate - a component of foliar feeding

Recipes

The first foliar application is done 2-3 days before flowering. Superphosphate 200 g is infused for a day, stirring in 2 liters of water, ammonium nitrate 30 g or ammonium sulphate 50 g, potassium sulfate 100 g, boric acid 10 g, copper sulfate 100 g are dissolved in another 3 liters of water. The solutions are mixed, draining the superphosphate from the sediment . In another container, a solution of lime milk is diluted with 100 g of freshly slaked lime in 5 liters of water. Add milk of lime to the first solution until neutral and dilute with water to 10 liters. The reaction is checked with an indicator (litmus paper) or a new nail - if rust appears, the solution is acidic. It is recommended to add Bordeaux mixture to the solution for the prevention of grape diseases. Spray the leaves and trunk of the vine.

The second top dressing is prepared as the first recipe, with the exception of blue vitriol, boron, and lime. Neutralized with baking soda. This spraying is carried out after the flowering of the grapes.

The third spraying is carried out before the ripening of the berries.

The solution is prepared as the second, but nitrogen is excluded from it. During this period, the plant does not need excess nitrogen, the roots will receive the required amount from the soil.

The fourth foliar top dressing is carried out before harvesting.

Made from wood ash. A solution of superphosphate 100 g per 3 liters is infused for a day, stirred, drained from the sediment. In another 3 liters, 4 cups of ash (450 g) are also insisted with stirring, poured out, leaving a residue. Bring to a neutral environment with baking soda and add water to 10 liters.

This is a laborious process, but foliar application is very efficient and economical, remember that the grapes will thank you with high yields and unparalleled taste. Will successfully lay buds for the next harvest year.