Plan the perfect garden with our interactive tool →

How to Use Potash on Grapevines

...
Automne grape vine - Sun land image by Sebastien Icard from Fotolia.com

Grapevines that show signs of potash deficiency will have yellowing leaves near the outer margins. This will especially hold true during the summer months on a mature plant. Severe potash deficiency will reduce the plant's vigor, growth and fruit yield. According to Ohio State University, potash can be applied through a foliar spray or into the soil around the grape plant. The foliar spray is a temporary fix, while adding the potash to the soil will give sustained nutrients during the growing season.

Conduct an annual soil test for the grapevines in your vineyard. Contact your local agricultural extension service to learn their particular process and procedures. Soil test results will take three weeks to six weeks. The analysis will have detailed recommendations for all soil nutrients and pH levels.

  • Grapevines that show signs of potash deficiency will have yellowing leaves near the outer margins.
  • The foliar spray is a temporary fix, while adding the potash to the soil will give sustained nutrients during the growing season.

Add the recommended amounts of potash to the grapevines. Grapes are extremely heavy users of potash. According to West Virginia University, all bearing grapevines must receive a yearly dose of high-level potassium in either the chloride or sulfate formation.

Spread one tablespoon of high-level potash fertilizer around each bearing grape vine. The actual amounts may be more or less if an annual soil test is conducted. If no soil test was performed, West Virginia University recommends this amount per plant per year.

Apply a foliar spray of either potassium sulfate or potassium nitrate as a temporary fix to the yellowing leaves on the grape vine plant. Follow all label directions of the potash concentrate. Various potash concentrates will require different dilution rates for a spray application. Potassium does fix itself in the soil, so a granular application must still be made to the soil around the plant.

  • Add the recommended amounts of potash to the grapevines.
  • Potassium does fix itself in the soil, so a granular application must still be made to the soil around the plant.

Tip

Consult your local agricultural extension service for any bulletins concerning grape plant growing and fruit cultivation for your area and climate. There are various types of grapes that will react differently to the widespread soil and climate conditions of this adaptive plant.

Related Articles

How to Fertilize Grapevines
How to Fertilize Grapevines
Grapevines & Leaf Curl
Grapevines & Leaf Curl
Yellowing Leaves on a Grapevine
Yellowing Leaves on a Grapevine
How to Add Boron to the Vegetable Garden
How to Add Boron to the Vegetable Garden
Acids & Bases in Fertilizers
Acids & Bases in Fertilizers
List of Common Agricultural Fertilizers
List of Common Agricultural Fertilizers
Liquid Fertilizer & Sulfuric Acid
Liquid Fertilizer & Sulfuric Acid
How to Plant Raspberries
How to Plant Raspberries
How to Feed Calcium to a Tomato Plant
How to Feed Calcium to a Tomato Plant
What Does Potassium Do for Plants?
What Does Potassium Do for Plants?
Iron in Soils
Iron in Soils
Russian Sage & Chlorosis
Russian Sage & Chlorosis
Types of Zinc to Put on Pecan Trees
Types of Zinc to Put on Pecan Trees
Where Can I Purchase Peters Plant Food?
Where Can I Purchase Peters Plant Food?
Why and When to Use Fertilizers High in Potassium
Why and When to Use Fertilizers High in Potassium
How to Winterize Grapevines
How to Winterize Grapevines
Garden Guides
×