Midwest Bio-Systems

- Model TE-500 - Compost Tea Extraction System


Compost tea or compost extract, is an economical way to deliver many of the benefits of high-quality compost efficiently and effectively. Compost tea made with the TE-500 is a water-based extraction of the humic substances and microbes from high-quality compost. A food source is also added to the compost tea to stimulate microbial activity and reproduction. High-quality compost tea is a source of diverse beneficial microbes which, along with microbial food sources, multiply numerous times on crop leaves and in the crop’s root zone. Compost tea is typically applied to the soil by a side dressing in the furrow, as a foliar by spraying or through an irrigation system to the leaves of a growing crop, or sprayed on crop residue to capture the nutrients. The diverse microbial profile in compost tea help the plant’s leaves absorb nutrients from the air, and as they find their way into the soil, they help the plant’s root system extract nutrients from the soil.

The Process Makes the Difference
The quality of any compost tea is dependent on the quality of the compost used. The method of production, however, also impacts the stability and effectiveness of the final tea product. The two most commonly used methods for producing compost tea are tea brewing and tea extraction. While both methods are effective in their own right, extraction does provide distinct advantages that are worth noting.

The Aeromaster Compost Tea Extraction System is a high production compost tea process. The basic principle of the extraction system is to use more high-quality compost, effectively extracting the soluble minerals, humus, and microbiology. No food sources are added immediately, allowing the inactive microbes to remain inactive, thus conserving oxygen. This extends the useful life of the tea to two to four weeks. Because the microbial population was not made active by adding food, the microbial diversity that existed in the compost is preserved. Aeromaster Tea Activators are added to the compost tea just prior to application. The Activators are specific food sources that “wake up” the microbial population causing it to become active and begin rapid reproduction. The active microbes are immediately applied to the crop where they continue to multiply in a natural environment that favors preserving the original microbial diversity. The extraction process, along with the higher volume of high-quality humus compost is also unique in its ability to extract a vital species of fungi which gives stress tolerance to plants.

The TE-500 produces compost continuously as 500 gallons of water passes through the extraction system. When the 500 gallon cycle is complete, the spent compost sludge is flushed from the system. Even though the spent compost sludge does not amount to a large volume, it is often put into a beginning windrow as an ingredient. Once a fresh charge of compost is put in the extractor, production of the next cycle can begin. Each 30 minute cycle of the Aeromaster Compost Tea Extraction System produces up to 500 gallons of high quality extract, for a throughput of 1,000 gallons per hour.

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