Provita Carbon Sink Biochar 10kg

'Carbon Sink' Organic Biochar

• Sustainable raw material Biochar produced from untreated wood (wood chips and screened material) from local forests
• Increases soil microbial content and activity
• Improves soil structure
• Increases plants' ability to fight environmental stresses
• Can be used to buffer excess nutrients such as those which can build up in intensive protected cropping situations

Charging Biochar

For use as a soil improver, it is important that the biochar is previously charged with nutrients and, ideally, with a film of organic matter. If this does not happen, the biochar initially acts like a sponge in the soil, absorbing water and nutrients from the environment (this may be desirable if you are trying to buffer excess nutrients). Although these are later released again, the absorption can lead to a short-term deficiency in the soil system, which can lead to growth depression.

• One of the easiest ways to charge, or 'activate', biochar is to mix it into your compost pile. This will charge the pores of the biochar with nutrients
• It is also great to add it to animal bedding where it will store moisture and bind ammonia and other nutrients from the manure -  reducing the odour and nitrogen and improving the environment for the animals
• If short on time you can work the biochar into the soil and inoculate by applying liquid feeds or compost tea

Application rate:

• 0.5-1 kg/m²
• Adding to compost - 25kg per m³

Nutrient content:

• 0.5% nitrogen (N)
• 2.2% phosphate (P₂O5)
• 0.2% water-soluble potassium oxide (K₂O)
• 0.7% Calcium (Ca)
• 0.1% Magnesium (Mg)
• 0.1% total magnesium oxide (MgO)
• Carbon (DM): 92.8%
• Particle Size: 0-10 mm