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- [1] REPORT ON PHOSPHORIC ACID IN FERTILIZERS - DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACIDJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1954, 37 (02): : 334 - 359JACOB, KDHOFFMAN, WM
- [2] REPORT ON PHOSPHORIC ACID IN FERTILIZERS - DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACIDJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1955, 38 (02): : 421 - 435JACOB, KDHOFFMAN, WM
- [3] DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACID IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1953, 36 (03): : 872 - 879ALLEN, HR
- [4] Determination of phosphoric acid in fertilizersINDUSTRIAL AND ENGINEERING CHEMISTRY, 1924, 16 : 1180 - 1180Breckenridge, JE
- [5] INSTRUMENTAL METHODS FOR THE DETERMINATION OF AVAILABLE PHOSPHORIC ACID AND POTASH IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1953, 36 (03): : 885 - 890AUSTIN, HCDENSON, WPEPPS, EA
- [6] A MODIFIED SPECTROPHOTOMETRIC PROCEDURE FOR THE DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACID IN FERTILIZERS AS THE HETEROPOLYPHOSPHOVANADOMOLYBDATE COMPLEXJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1953, 36 (03): : 880 - 885TEAGUE, RT
- [7] THE DETERMINATION OF AVAILABLE PHOSPHORIC ACIDCHEMISTRY & INDUSTRY, 1950, (50) : 799 - 801HAMENCE, JHTAYLOR, G
- [8] DIFFERENTIAL PHOTOMETRIC DETERMINATION OF IRON IN PHOSPHORITES, FERTILIZERS AND PHOSPHORIC-ACID EXTRACTIONZAVODSKAYA LABORATORIYA, 1972, 38 (11): : 1323 - 1323PANTELEE.EPKRUPINA, IN
- [10] DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACID BY TITRATION OF AMMONIUM PHOSPHOMOLYBDATEJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1952, 35 (03): : 764 - 767ALLEN, HRSWIFT, EHAYS, RKAUFMAN, ZF