The objective of basic fertilization is to meet the increased needs in nutrients, both at the early stages of the rapid growth of the shoots and formation of inflorescence, as well as later on, during the period of rapid growth and ripening of the berries.
The quantity and the rate of nutrients provided by basic fertilization are determined by the characteristics of the soil, its type, age and production orientation of the vineyard.
- ● In non-irrigated vineyards that produce high quality wines, the full amount of fertilizer is provided through the basic fertilizing, and the needs of the crop in N, P, K, and Mg are fully covered. At the same time, any deficiencies in trace elements are corrected, as top-dressing fertilization is not feasible.
- ● Ιrrigated vineyards and high productivity table varieties and grapes that are destined to be dried are provided during the winter with:
- ● 2/3 of the total required amount of Nitrogen (N) and Potassium (Κ)
- ● 3/4 of Phosphorous (P) and Magnesium (Mg)
The precise time of fertilizing is determined by the type and characteristics of the soil and by the meteorological data of the area.
- ● Therefore, in heavy clay soils and in areas with low precipitation the slow elements P and K should be integrated early in the winter (Dec. – Jan.), so that they are exposed to the winter rains that foster their movement in the ground, while N should be integrated in late winter or early spring, to avoid leaching and so that it is available to plants during the period of rapid growth of the shoots.
- ● In light sandy soils and in areas with high precipitation all fertilizing should be realized in late winter (February) or early spring (early March), in order to minimize losses and so that they are available to plants in time.
Depending on the type and characteristics of the soil, it is recommended either to apply complex multi-nutrient fertilizers with nanopolymer technology (Ωmega fert), which prevent the immobilization of nutrients in the soil and increase their availability in the crop for a long time, or stabilized fertilizers (NutrActive), which allow for basic fertilizing to be done all at once in mid-winter, ensuring adequate rainfall for the movement of P and K in the soil, as well as the protection of nitrogen from leaching.
|Type of Fertilizer
||Stage of application
NutrActive special 12-12-17 (+30) +2MgO +TE
NutrActive magni-plus 14-7-14 (+25) +4MgO +0,1Fe +0,1Zn
NutrActive triple-S 15-15-15 (+25)
Ωmega fert 12-8-17 (+30) +2MgO +2CaO +TE
Ωmega fert 14-8-18 (+30) +2MgO +TE
Ωmega fert 14-18-14 (+27)
Complefert extra 12-10-20 (+28) +2MgO +ΤΕ
Complefert CalMag 8-12-18 (+35) +3MgO +3CaO +TE
Complefert blue-star 12-12-17 (+30) +2MgO +TE
Complefert magni-plus 14-7-14 (+25) +4MgO +0,1Fe +0,1Zn
|600 -1200 kg
* The dosages mentioned are indicative. Regarding the fertilizing of crops, one should take into account the advice of local agronomists.