RIPENING PERIOD POTASSIUM DEFICIENCY

RIPENING PERIOD POTASSIUM DEFICIENCY

SEPTEMBER 17, 2018. BY STEPHANIE BOLTON & STAN GRANT. Every conversation between Lodi growers right now includes some sort of theory on why we’re seeing more potassium (K+) deficiency than anyone can remember. We discussed it at our monthly PCA Network...
TOWARDS AN UNDERSTANDING OF VINEYARD POTASSIUM

TOWARDS AN UNDERSTANDING OF VINEYARD POTASSIUM

MONDAY, AUGUST 26, 2024.  BY STAN GRANT, VITICULTURIST. Poor potassium. So vital and yet, so often misunderstood. Many times, potassium (K) is expected to behave like other macronutrients, that is similar to nitrogen, phosphorus, sulfur, magnesium, and calcium. But...
WINE GRAPE ACIDITY, pH, & POTASSIUM

WINE GRAPE ACIDITY, pH, & POTASSIUM

SEPTEMBER 2, 2019.  BY STAN GRANT, VITICULTURIST. In grape berries, acidity imparts tart or sour taste.  Both too little and too much acidity are problems for wineries.  Too little acidity results in flat and uninteresting wines, but too much acidity results in...