| http://www.w3.org/ns/prov#value | - The CN1310156 patent is describing a composite fertilizer, which is produced with animal bone black, urea, ammonium phosphate, potassium chloride, potassium sulphate, oilcake, fowl dung, calcium perphosphate, zeolite powder and adhesive, and through mixing, pelletizing and other steps.
|
