Applying Lime to Soil After Planting: Methods for Soil Alkalization Post-Germination
In maintaining a healthy and vibrant lawn, understanding the pH level of your soil is crucial. Most grasses thrive in a pH level between 5.8 and 7.2. If you find your soil is acidic, lime can be an effective solution.
When dealing with acidic soils, magnesite is a good option if your soil contains sufficient calcium. However, for more common corrective measures, agricultural lime (calcium carbonate) is the preferred choice.
Applying lime to your lawn is a straightforward process. It's essential to water your lawn after applying lime to rinse any excess off the grass blades and prevent leaf burn.
The amount of lime you need depends on the acidity of your soil. If you require between 50 and 100 pounds of lime, it's advisable to apply half in the spring and half in the fall. For smaller amounts, a single application may suffice. On the other hand, if you need more than 100 pounds, divide it into three parts: 50 pounds in the spring, 50 pounds in the fall, and retest the following spring to add more lime if necessary.
When choosing a lime product, consider factors such as NV (neutralising value), fineness, and calcium and magnesium content. It's also important to note that hydrated lime (calcium hydroxide) is mainly used in mortar and concrete, not agriculture.
Be cautious when handling builders' lime (hydrated lime), as it is a fine powder that can irritate the skin and eyes. Dolomitic lime, containing both calcium and magnesium, is a good option for soils with low levels of these minerals.
Soil tests conducted at state or commercial soil testing laboratories can determine the exact amount of lime needed for your soil. To find the right lab, contact local agricultural extension services, university agricultural departments, or government environmental agencies that recommend certified labs for soil pH testing in your region.
Frequent soil testing is essential to monitor the pH level and adjust lime applications as needed. It's also important to note that lime should not be applied to turf that is wilted, stressed, or dormant.
Lastly, over-application of lime can lead to alkaline soil conditions, which can be harmful to your lawn. Always adhere to the recommended amounts and follow best practices to ensure a healthy and thriving lawn.
