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Site Preparation and Mineral Nutrition in Vineyards - University of ...

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Potassium (K)<br />

• Influences yield, juice pH, quality<br />

• Yield reduction due to reduced<br />

vegetative growth if deficient<br />

• Applications should be dependent on<br />

both soil <strong>and</strong> petiole analyses<br />

• Balance <strong>of</strong> K, Na, Ca, Mg; soil pH<br />

• Mature v<strong>in</strong>es: 50 -100 lbs per acre <strong>and</strong><br />

year

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