BlogTips for Making Your Soil More or Less Acidic

April 14, 2021by admin
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If this is the year you’re planning on a fresh vegetable garden or just greening up the landscape around your home, you’ll need to know the pH level of your soil. Your soil’s pH is an important part of the plant health puzzle. Learning what it is and how to adjust it may determine whether your plant’s struggle or blossom.

What Is Soil pH Level?

The scientific symbol pH refers to the concentration of hydrogen ions. The pH number of your soil indicates the presence or absence of minerals important to healthy plant growth.

A soil test determines the pH level. You can buy soil tests at commercial garden centers and local county agricultural extension offices, or you can order a home test kit.

Your soil’s pH number will be between 0 and 14. Soil is considered acidic if its pH is at or below 5. It’s too alkaline if the results are above pH 7.5.

Many factors influence the pH level of soil, including:

Frequent rain that leaches out alkaline, making the soil more acidic; A lack of organic matter contributed by tree cover; The presence of acid- or alkaline-contributors such as limestone or granite; Fertilizer salts that increase acidity; Concrete foundations or walkways that leach alkaline into the soil.

Why Do Soil pH Levels Need Adjusting?

Soil that’s too alkaline or too acidic prevents a plant’s roots from accessing nutrients needed for optimal growth. Proper soil pH means healthier plants and more blossoms or fruit. Loose soil (rather than dense and compacted), water, the right amount of sunlight, and organic matter also contribute to productive growth.

Amending the soil, or adding materials to improve it, can help. However, be careful because it’s easy to make a mistake.

How to Lower the pH Level in Soil

When soil is alkaline, it’s difficult to lower it, but acidifying nitrogen, elemental sulfur, iron sulfate or aluminum sulfate are viable options. Soil test results should tell you how much, when, and how to apply.

Moderate alkalinity may also be rectified with the addition of sphagnum peat moss. Just add a layer of one to two inches on top of the area of concern and work it into the soil with a rototiller or spade. This peat will also augment beneficial organic matter in the soil.

How to Raise the pH Level in Soil

Adding lime reduces acidity. Soil scientists say that the amount of lime needed to “sweeten” or lower acidity depends on the composition of the soil. Sandy soil needs less lime while clay-based soil needs more.

It’s best to apply lime in fall and winter for spring planting, allowing the substance time to impact the pH. To determine the amount of clay or sand in your soil, do a simple percolation test to find out how quickly water is absorbed.

Read more: familyhandyman.com

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