Nutritional information
The Grapevine is a versatile crop and has become adapted to a wide variety of soil conditions. The nutritional requirements of this important cultivation are variable and correct choice of fertilizers is essential in determining both qualitative and quantitative yield. The applied nutrients can effect the carbohydrate, protein and amino-acid content in both must and table grapes.
Nitrogen
Involved in the production of chlorophyll, proteins and nucleic acids; essential for development of plant tissue and fruit growth.
Phosphorous
Involved in the production of vitamins and enzymes controlling phosphorylation and sugar metabolism.
Potassium
Controls ionic balance within cells and plant transpiration via opening of the stomata. It is important in determining the qualitative characteristics of the fruit; enhancing taste, increasing sugar content and improving storage life.
