Super-concentrated compost


Anyone involved in composting is well aware of the problem of soil exhaustion and how difficult it is to treat it with lignocellulosic compost because of its variable and difficult to control quality.

To overcome this problem, a team of Spanish researchers has come up with a novel idea.

The solution involves the extracting of humic substances from plants in order to enrich soil without having to use artificial humus, while simultaneously recycling certain little-used types of biomass.

Once the lignocellulose elements have been composted, the humic part is extracted in liquid form at high temperature with extreme pH values. After that, liquid and solid phases are separated.

The final product is extremely concentrated - thus reducing transport costs to a minimum.

It is still necessary to constantly monitor and analyse the quantity of humus, in order to classify the final product for marketing.

Various research studies have been carried out on the subject of extracting humic substances directly from wood and other vegetable waste (such as pumpkins, old vegetables and garden waste), in order to control the possible phyto-toxicity of the final product, its effects on vegetable production and its influence on some micro-organisms which act as indicators of soil fertility.

While the research is not yet complete, results obtained so far are very encouraging.