共 44 条
- [1] SPECTROPHOTOMETRIC METHOD FOR DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERS - USE OF DRY ASHING TO DESTROY CITRATEJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1965, 48 (04): : 859 - +BRAMMELL, WS
- [2] DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS - MODIFICATIONS IN CHLORATE METHOD FOR DESTRUCTION OF CITRATEJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1961, 44 (02): : 219 - +BRABSON, JABURCH, WG
- [3] PHOSPHORUS IN FERTILIZERS - DIRECT DETERMINATION OF AVAILABLE PHOSPHORUSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1960, 43 (03): : 478 - 498JACOB, KDHOFFMAN, WM
- [4] NOTE ON DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1957, 40 (03): : 992 - 993ALLEN, HR
- [5] VOLUMETRIC METHOD FOR DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1961, 44 (02): : 229 - +HOFFMAN, WMFERRETTI, RJ
- [6] PHOTOMETRIC METHOD FOR DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1961, 44 (02): : 233 - +HOFFMAN, WMJOHNSON, FJGEHRKE, CWBURCH, WGBRABSON, JA
- [7] THE DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERS BY THE QUINOLINIUM PHOSPHOMOLYBDATE METHODJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1959, 42 (03): : 567 - 568PERRIN, CH
- [8] REPORT ON PHOSPHORUS IN FERTILIZERS .2. DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS BY THE VOLUMETRIC METHODJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1959, 42 (03): : 508 - 511HOFFMAN, WMJACOB, KD
- [9] PHOTOMETRIC DETERMINATION OF AVAILABLE PHOSPHORUS PENTOXIDE IN FERTILIZERSANALYTICAL CHEMISTRY, 1950, 22 (08) : 1062 - 1063EPPS, EA
- [10] DIRECT DETERMINATION OF AVAILABLE PHOSPHORIC ACID IN FERTILIZERSJOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1953, 36 (03): : 872 - 879ALLEN, HR