Process for preparing keratin fertilizer with addition of humic acids in colloidal form and keratin fertilizer with addition of humic acids per se

摘要

ufeffu0159eu0161enu00ed refers to the method of preparation keratinovu00e9ho fertilizer incorporating huminovu00fdch acids in colloidal form and the fertilizer produced in this manner, which is obtained by processing the feathers from poultry plant.