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VINEYARD NUTRIENT MANAGEMENT IN WASHINGTON STATE

VINEYARD NUTRIENT MANAGEMENT IN WASHINGTON STATE

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Dr. Michelle Moyer, Viticulture Extension Specialist, Washington State University, Dr. Stacy Singer, Research Scientist, Agriculture and Agri-Food Canada, Dr. Joan Davenport, Crop and Soil Scientist, Washington State University, Gwen-Alyn Hoheisel, Regional Tree and Small Fruits Extension Specialist, Benton County Extension Director, Washington State University,
Understanding the nutrient requirements of perennial fruit crops is paramount to the longevity and sustainability of a commercial operation. This guide provides basic information on grape plant nutritional requirements, and how those nutrients become available for use. It also provides specific information relating to vineyards; how site, soil, and viticulture practices influence nutrient uptake. Information on how to soil and tissue test for vine nutrient status is described, as well as specific recommendations for correcting nutrient deficiencies, broken down by the key macro and micronutrients required by grapevines.
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Table of Contents

 

Introduction to Vine Nutrition 3
Soil Fertility and Plant Nutrient Availability 4
Testing for Nutritional Deficiencies 5
Interpreting a Soil Test Report 9
Resources for Finding a Testing Laboratory 10
How to Collect Soil Samples for Nutrient Analyses in Vineyards 11
How to Collect Grape Leaves for Nutrient Analyses 12
Adjusting Soil pH 13
Saline and Sodic Soils 15
Types of Fertilizers 16
Determining Composition of Organic Fertilizers 17
Interpreting Soil and Tissue Nutrient Ranges 19
Nutrient Recommendations Pre- and Post-Planting 21
Macronutrients 21
Micronutrients 33
References 43

Overview

Understanding the nutrient requirements of perennial fruit crops is paramount to the longevity and sustainability of a commercial operation. This guide provides basic information on grape plant nutritional requirements, and how those nutrients become available for use. It also provides specific information relating to vineyards; how site, soil, and viticulture practices influence nutrient uptake. Information on how to soil and tissue test for vine nutrient status is described, as well as specific recommendations for correcting nutrient deficiencies, broken down by the key macro- and micronutrients required by grapevines.

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