ORGANIC LIQUID HAVING HIGH NITRATE CONTENT FOR USE IN THE ORGANIC CULTIVATION OF PLANTS ON A SUBSTRATE

摘要

The present invention relates to a method for producing an organic liquid having a high nitrate content suitable for organically cultivating plants on a substrate, the organic liquid or plant nutrition thus produced, and use of the organic liquid or plant nutrition in a method for organically producing plants on a substrate. The method comprises a) contacting a solution comprising proteins and/or amino acids as a source of organic nitrogen and a liquid with ammonification bacteria to convert organic nitrogen into ammonium (NH4+) and b) contacting the solution with nitrifying bacteria to convert ammonium (NH4+) to nitrate (NO3−).