Biochar for alkaline soils
Our biochar for alkaline soils formulation permanently sequesters carbon and transforms your soils. Our biochar, rock dust and microbial mix is made from pristine Australian woody sources, premium rock dust and other nutrients. This formulation will give you immediate microbial and mineral benefits in the first year and will bring biodynamic benefits in the next and all subsequent years.
Our biochar is the least amount of effort you can expend to permanently transform your soil. More permanent soil carbon than compost, less bulk and weight and perfectly convenient. Just sprinkle on, rake lightly and stand back. The benefits of it will just compound in years to come.
How to apply
There are several ways to apply. Either sprinkle lightly at a rate of one handful per square metre, then add mulch or bark litter. If you are able to convert the entire growing layer, then apply at a rate of 4 litres per square metre to the top 5 to 10 cm of soil. When preparing new gardens or lawns, add to the bulk loam at a rate of 10% by volume.
When planting new trees, put a 2 litre tub of original formulation biochar into the planting hole of your new tree. Then add a 3 cm layer of soil before placing the root ball on top. This is especially recommended when planting trees in sandy coastal areas or in heavy-setting soils.
Use a 5cm layer at 20% concentration on all exposed areas of drab beige soil in your garden to spruce up the visual appearance of your garden. It will permanently transform it to give it a strong, dark, rich look. This provides a better contrast for the other colours in your garden especially lush greens and whites.
Why this alkaline soil formulation?
Biochar, being naturally alkaline, needs to be neutralised before you can add it to alkaline soil. We ensure that remaining potash from the char production process is neutralised and then add elemental sulphur. The pH is around 5.8 – 6.
If you are growing acid-loving plants like hydrangeas in alkaline, high sodium or chalky soils or want to make a long term correction to these soils then you need this particular formulation.