Section 2
SEC. 2. It shall be unlawful within the Philippine Islands to sell, offer for sale or possess or manufacture for m sale any commercial fertilizer which has not been officially registered in the Bureau of Science. The application of the manufacturer or seller of any brand of commercial fertilizer to said Bureau for registration of such fertilizer shall contain a sworn statement of its correct composition in the following terms: (1) The minimum percentage of phosphoric acid (P2O5) in available form (soluble); (2) the minimum-percentage of insoluble phosphoric acid (P2O5) ; (3) the minimum percentage of potash (K2O) in compounds soluble in water; (4) the minimum percentage of nitrogen in a available form; and (5) a sworn guaranty that the fertilizer contains no horn, hoof, hair, feathers or other similarly inert nitrogenous matter. The manufacturer or seller shall also state the sources of the constituents of the brand of fertilizer offered for registration, which statements and the information contained therein shall be recorded for reference, but shall not be disclosed unless the materials used in said brand of fertilizer are found satisfactory, and its guarantee composition as described above is correct, the said Bureau may officially register the said is brand and its guaranteed composition, and the manufacturer or seller of the said brand shall pay a registration fee of fifty pesos. No change may be made in the composition guaranteed for the fertilizer or in the general character of the materials used in its manufacture, without filing a new statement.