Not as green as before? Time for a pH Test.
July 8, 2021
Your soil’s pH balance plays a crucial role in the health of your lawn, and finding that perfect pH balance may seem a little too much for a nonprofessional.
Fortunately, with a little bit of guidance and an inexpensive kit from Bunnings, you can test and adjust your soil’s pH in as little as a day. Here’s how;
Soil pH is the measure of its acidity or alkalinity and is on a scale of 0-14. The closer to 0 the soil is, the more acidic it is. The closer the pH is to 14, the more alkaline it is. Logically, a pH of 7 is neutral, meaning it is a perfect balance between acidic and alkaline.
Coloured Dye Soil pH Testers
When using a coloured dye tester, mix a little soil with water and put the mixture in the included test tube. Mix the dye into the water-and-soil cocktail and wait a few minutes. In a few moments, the dye will change the colour of the water-and-soil mixture.
Compare that colour to the pH scale included with the kit to get your soil’s pH levels.
Raising Soil pH Levels
If your soil is acidic, the pH will generally fall between 4.8 and 6, and you will raise this applying a ground limestone to the soil. Generally start at a rate of 100 grams per square metre.
If your soil is alkaline
You can use acid-forming amendments to correct it like ammonium sulfate or sulfur to correct the issue. When applying these acid-forming amendments, always apply to the recommendations on the packaging, it is possible that you can burn your roots if applied to heavy. Generally though 25 grams per square metre is a good starting point.
When you have applied the lime or sulfate leave it a day or two and test the soil again and see what the results show.