Chapter 16

Vineyard Nutrient Management

(book excerpts)

Grapevine nutrition plays a major role in the life of the vineyard; therefore, the nutrients in the soil and vines must be monitored on a continual basis and maintained for optimal efficiency. Since this is a constantly changing situation, it is best to set up a regular program of soil and tissue (e.g., petiole or leaf blade) sampling and analysis to avoid mineral deficiencies and unnecessary application of fertilizers. The interpretation from the analysis of the petioles and soil samples should always be used together with visual observations made in the vineyard. Although the mineral elements are needed in different quantities, each one plays an essential role in completing the vine’s life cycle. Macronutrients such as nitrogen, phosphorous, potassium, and magnesium are used in relatively large quantities by vines. Micronutrients such as boron, iron, manganese, zinc, and molybdenum, although no less essential, are needed in very small quantities. When one or more of these elements is deficient, vines may exhibit reduced growth or yield and greater susceptibility to diseases and winter injury. This may also result in other problems such as fruit with a low or high pH, poor color, low phenolics, stuck fermentations, and undesirable flavors. The availability of essential nutrients is, therefore, critical for optimum vine performance and profitable wine grape production.

Click on the following topics for more information on vineyard nutrient management.

Topics Within This Chapter:

  • Visual Observations
  • Soil Analysis
  • Pre-Vine Soil Analysis of Vineyard Site
  • Sampling Soil from Established Vineyards
  • Soil pH
  • Characteristics of Various Soil Types in Nutrient Availability
  • Tissue Analysis
  • Time of Sampling
  • Leaf Blade versus Petiole Sampling
  • Site Selection
  • Tissue Selection
  • Bloom
  • Veraizon
  • Handling Samples
  • Interpreting the Analyses
  • Record Keeping
  • Macronutrients and Micronutrients
  • Climate Change and What it Means to for Grapevine Nutrition
  • Seasonal Variations in Nutrients
  • Fertilizer Antagonisms
  • Nitrogen
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Nitrogen Toxicity
  • Soil Factors Affecting Availability
  • Phosphorus
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Phosphorus Toxicity
  • Potassium
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Potassium Toxicity
  • Magnesium
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Potassium Toxicity
  • Zinc
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Zinc Toxicity
  • Boron
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Boron Toxicity
  • Manganese
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Manganese Toxicity
  • Molybdenum Toxicity
  • Iron
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • Iron Toxicity
  • Molybdenum
  • Role and Deficiency Symptoms
  • Laboratory Analysis
  • Time of Application
  • Application Methods
  • Soil Factors Affecting Availability
  • References