Crop Specificity: Grapevine
Grapevine is one of the most commonly grown fruit crop in the World. Most varieties of grapes come from species of Vitis vinifera (Common grape). Grape crops are cultivated in warm regions with hot, dry summers and mild winters which protects plants against frost injures.
Grapevine plants can grow in different soil conditions. However, the most suitable soils for grape are neutral or slightly alkaline sandy loams with low level of ground water.
Rapid and strong growth of shoots, high vegetative plant part production, long vegetation period and high yield require not only appropriate plant management (cutting) but also proper plant nutrition and stimulation.
Grapevine plants have high requirements for nitrogen (N) which effects plant growth and yield quantity and quality. Soil applied nitrogen should be supported by foliar application of nitrogen (N), especially at critical growth stages such as intensive shoot and leaf growth, inflorescence development and beginning of fruit development. For all those stages PLONVIT NITROMAG and/or PLONVIT OPTY could support plants with proper dose of nitrogen and other macro- and microelements as well.
High yield of grapes and high quality of berries and wine are influenced by other macronutrients, especially potassium (K), for which the vine plants have the highest demand among all macroelements. Potassium response mostly for fruit size, taste and colour which is important for both type of grapes: table and wine grapes. Foliar applied PLONVIT KAPLPRIM could significantly improve supplying plants with potassium (K), especially during inflorescence development and fruit development.
Berry quality and tolerance to some fungal diseases results from calcium (Ca) availability to plants. Application of calcium activator OPTYCAL and fertilizer PLONVIT CALCIUM TURBO increases fruit firmness and resistance of fruit skin to cracking and creases.
Since vine grape plants are usually grown on neutral and slightly alkaline calcareous soils, they require effective supplying with microelements, especially boron (B), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu). Those nutrients have direct effect on a number of natural plant processes such as photosynthesis, pollination, fruit set and fruit development, sugar and acid metabolism etc. Their effectivness could be supported by foliar application of: MIKROCHELAT Fe-13, MIKROCHELAT Mn-13, MIKROCHELAT Zn-15, and MIKROCHELAT Cu-15. Also, since boron is hardly available to plants from calcareous soils, foliar application of PLONVIT BORON TURBO could supply vine plants with boron to improve pollination, fruit set processes and increase fruit quality.
High yield of grapevine plants as well as long vegetation period require supporting of plant growth and tolerance to stresses which could ensure yield quantity and good quality.
Therefore, foliar applications of TYTANIT and OPTYSIL may stimulate plants for better growth and yield and for improvement of tolerance to abiotic (weather conditions) and biotic (disease and pest appearance) stresses.
Nutrition Program - diagram: Grapevine
Nutrition Program - description: Grapevine
Recommended Products: Grapevine
EDTA chelated copper (150 g Cu per kg) in the form of readily soluble in water ultra-granulate
EDTA chelated iron (130 g Fe per kg) in the form of readily soluble in water ultra-granulate
EDTA chelated manganese (130 g Mn per kg) in the form of readily soluble in water ultra-granulate
EDTA chelated zinc (150 g Zn per kg) in the form of readily soluble in water ultra-granulate
MIKROVIT BORON TURBO
Liquid, boron fertilizer recommended for intensive cultivation of crops with high nutrition requirements for boron.
Silicon immunity stimulant – a liquid version
Liquid calcium fertiliser with micronutrients containing 260 g CaO in 1 litre
Liquid potassium fertilizer with 400g K2O in 1L
Liquid foliar nitrogen fertilizer with addition of magnesium and micronutrients (containing 370g of N in 1L)
Crystalline, water-soluble NPK foliar fertiliser with high concentration of nutrients in balanced proportions.
Nutrient Deficiencies: Grapevine
Stress Control System: Grapevine
Strategy for Supporting Natural Plant Resistance STRESS CONTROL SYSTEM (SCS) is a set of recommendations for the use of stimulators, activators, shielding products and bio-products of INTERMAG, the aim of which is to increase the natural resistance of plants to stress, to support health of plants, and to accelerate recovery after the stress factors disappear.
Strategy STRESS CONTROL SYSTEM (SCS) - GRAPEVINE can be implemented in two ways:
- Preventive actions – systematic bio-stimulating treatments, recommended in feeding and bio-stimulation programs - improve the condition of plants and increase their natural resistance to abiotic and biotic stresses.
- Intervention actions – individual selection of preparations and dates of their application, aimed at significant reduction of harmfulness of stresses and limitation of their negative effects that may occur in case of atypical or unfavourable growing condition appearance. These actions also accelerate the regeneration of plants after the stress factors disappear.
Elements of the strategy STRESS CONTROL SYSTEM (SCS) for GRAPEVINE crops are:
- stimulators - TYTANIT, OPTYSIL, OPTYSIL ULTRA, AMINOPRIM
- activators - GROWON, OPTYCAL, FROSTEX
- protective products - CUPRAN, ALKALIN K+Si, ALKALIN KB+Si, ALKALIN PK 10:20
Selection of products to increase the natural resistance of plants to stress, to support health of plants and to accelerate their recovery after the stress factors disappear are shown in the table.
The effectiveness of the treatments with different products depends on the date of their application. In the table they are marked with symbols:
• before expected occurrence of stress factors
• during the stress
• after disappearance of stress factors.
Detailed information on each product applications can be found in their descriptions.
|Factors causing plant stress - GRAPEVINE||
Activator of energyGROWON
Frost resistance activatorFROSTEX
|high soil salinity||
|low temperature of soil and /or air||•||•||••|
|high temperature of air and /or soil||••||•|
excessive soil moisture, periodic flooding
|shortage of water in the soil||••||•|
|limited availability of nutrients||••||••||••|
|adverse weather conditions during flowering||••|
|mechanical damage (including hail damage)||•||••||•||•||••||•|
|intensive use of agrochemicals (increased plant protection and foliar fertilization programs)||••|