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Soil Studies
- Notes from the Desk of Colleen Dempster


How to make Thermophilic Compost
There are at least 3 methods that produce safe, biologically complete compost: Thermal (hot) composting, vermicomposting, and Johnson-Su (aged static pile) composting. Each method is kept aerobic (exposed to oxygen), which deters the growth of anaerobic pathogens. Thermal composting has the added benefit of heat to kill pests (weed seeds) and pathogens, and is therefore a great starting point for making compost to be used as a biological inoculum, such as compost teas and ext


How to make Compost Extract
It starts with a good biological compost -- your source of microbes. If you can, match the successional stage of your compost ( Table 1 ) to the successional stage of the plants being grown. Fill a watering can or 5gal bucket with water. Use ambient temperature, non-chlorinated water if possible. Add compost - Place desired amount of compost into the tea bag based on the area to be treated ( Table 2 ). 1L compost treats ~700sq m, 6L treats 1 acre! Extract microbes - Massage


How to make Compost Tea
using our 5gal tea kit It all starts with a good compost - your source of microbes the best and safest types of compost to use in compost tea are: thermal aerobic compost, vermicompost, or aged Johnson-Su compost. Avoid uncomposted manure or compost made with only manure, as these composts may contain human pathogens and will only add bacteria to your soil. make sure your compost has been maintained at ~40% moisture, stored in a breathable container, aged less than 1.5yrs for


Understanding Dr. Elaine Ingham's Recommended Ranges for Plant and Microbial Successions in BioComplete Compost
Healthy soil depends on a thriving community of microorganisms that support plant growth and ecosystem balance. Dr. Elaine Ingham, a leading soil microbiologist, has developed detailed guidelines for the ranges of microbial and plant successional stages that indicate soil health. These recommendations also tie directly into the biological requirements for BioComplete™ Compost, a product designed to restore and maintain soil vitality. This post explores Dr. Ingham’s recommende
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