ISHS Acta Horticulturae 640: XXVI International Horticultural Congress: Viticulture - Living with Limitations
GRAPE NUTRITION MANAGEMENT SERVICE: A MATHEMATICAL MODEL AND DATABASE |
| Author: | M.E. Amiri |
| Keywords: | Growth predicted, fertilizer recommendation, nutrition advice, nutrition disorder, yield |
| Abstract:
A mathematical model linked to a database, known as the Grape Nutrition Management Service (GNMS), has been developed to provide nutritional management advice to the grape industry in the province of Zanjan, one of the main grape production regions in Iran. This practical model summarizes mineral flux within the grapevine and derives a budget of the amount of any mineral requirement. Monitoring grapevine nutrient status, using plant and soil analysis, provides further refinement of the fertilizer program, and determinations of mineral deficiencies. Equilibrium nutrient required to sufficient any deficiency and disorders according to a calculated budget. This budget accounts for uptake, efficiency of fertilizer recovery, cycling within the vineyard, and the background deficiency. All required data was gathered from a complete description of the dynamics with in individual grapevine over three years, 1998-2000. This database can be considered a valuable research tool for examining mineral dynamics within an individual grapevine and for understanding general nutritional relationships for grape. | |
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