How to decrease alkalinity in soil. Dig to a depth of 6 inches. Test your garden soils ph level with a home soil test kit. Once youve determined the alkaline content of the soil you can make adjustments.
You can also use dolomitic limestone which supplements both calcium and magnesium in your soil. Review the results of the soil test to determine the soils ph. Test the soil ph.
A ph reading of 7 is a neutral soil not too acidic or alkaline. How to lower ph in soil in order to correct alkaline soil you will typically need to introduce a source of acid. You can use ordinary limestone or calcium carbonate which supplements calcium in your soil.
This will lower your ph level by 10 on the scale. Dig five small holes in the planting area. Crushed limestone can raise soil ph and supplement calcium when added to your garden.
The lower the ph the more acidic the soil. A limestone pillar in england. The ph of your garden soil is easy to determine with a commercial ph testing.
How to reduce the alkalinity of soil 1. Find the recommended ph level of your soil. Before adding anything to alter the soil ph always make sure to test your soil to see how far it is from your goal ph.
Add elemental sulfur at a. Gather soil samples from the garden area. How to lower alkaline soil levels.
You can add compost manure or organic soil amendments like alfalfa meal to increase the nitrogen level of the soil which will also gradually decrease the ph. Do this at the start of the. Review the results of your soil sample.
If your soil is alkaline you can lower your soils ph or make it more acidic by using several products. If you have a sandy soil you will need to add 12 ounces of ground rock sulfur per square yard. How to lower soil ph.
Test the soil to discover its alkalinity level.