You can definitely put biochar on top of your soil! In fact, it is a highly effective method of incorporating biochar into your garden and improving soil fertility. Many gardeners have found great success by layering a compost and biochar mix on the top of their soil.
To begin, it is important to understand the benefits of biochar. Biochar is a type of charcoal that is created through a process called pyrolysis, in which organic materials such as wood or agricultural waste are heated in the absence of oxygen. This produces a highly porous and stable form of carbon that can hold onto nutrients and water, while also providing a home for beneficial microbes and fungi.
When you apply biochar to the top of your soil, it acts as a sponge, soaking up and retaining moisture, nutrients, and beneficial microorganisms. This can help improve the overall health and fertility of your soil, leading to healthier plants and better yields. Additionally, biochar has the ability to improve soil structure and drainage, making it particularly beneficial for heavy clay soils.
One common method of applying biochar is to mix it with compost before layering it on top of your soil. This can be done by combining approximately 20% biochar with 80% compost, though you can adjust the ratio based on your specific needs. The compost helps to provide additional organic matter and nutrients, while also aiding in the distribution of the biochar throughout the soil.
To apply the compost and biochar mix, simply spread it evenly over the top of your soil, making sure to cover the entire area you wish to improve. You can use a rake or garden fork to gently work the mix into the top few inches of soil, allowing it to integrate with the existing soil structure. Avoid applying the mix too thickly, as this can prevent water and air from reaching the plant roots.
It’s important to note that biochar is a long-term investment in soil health. While applying a single layer of compost and biochar mix can provide some immediate benefits, many gardeners choose to build up their soil fertility over time by applying additional layers as needed. This gradual approach allows the biochar to continue working its magic over several growing seasons, steadily improving the overall health of your soil.
Applying biochar on top of your soil is a highly effective way to enhance soil fertility and improve plant health. By layering a compost and biochar mix on the top of your soil, you can reap the benefits of increased moisture retention, nutrient availability, and beneficial microorganism activity. Remember to take a long-term approach and continue adding compost and biochar as necessary to continue building up your soil fertility.
