13 Jul I believe I need a source of nitrogen for growth. What about fish and other nitrogen sources?
Fish hydrolysate is sometimes required in BioAg programmes but at low rates (usually 8-10l/Ha) as a catalyst and sometimes we are using the phosphate in the fish to draw calcium into the plant rather than as a source of nitrogen.
In conventional farming systems we may include calcium nitrate at low rates if nitrogen is required. In isolated instances urea may be used for specific purposes.
Whenever BioAg prescribes nitrogen there is always an accompanying BioAg liquid.