共 50 条
- [1] REPORT ON PHOSPHORUS IN FERTILIZERS .2. PHOTOMETRIC DETERMINATION OF PHOSPHORUS[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1957, 40 (03): : 700 - 711EPPS, EAJACOB, KD
- [2] REPORT ON PHOSPHORUS IN FERTILIZERS - PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1958, 41 (03): : 517 - 524BRABSON, JADUNN, RLEPPS, EAHOFFMAN, WMJACOB, KD
- [3] PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS IN FEEDING STUFFS AND FERTILIZERS[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1955, 38 (04): : 898 - 903RICKEY, GFAVENS, AW
- [4] REPORT ON PHOSPHORUS IN FERTILIZERS .2. DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS BY THE VOLUMETRIC METHOD[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1959, 42 (03): : 508 - 511HOFFMAN, WMJACOB, KD
- [5] PHOTOMETRIC DETERMINATION OF AVAILABLE PHOSPHORUS PENTOXIDE IN FERTILIZERS[J]. ANALYTICAL CHEMISTRY, 1950, 22 (08) : 1062 - 1063EPPS, EA
- [6] REPORT ON PHOSPHORUS IN FERTILIZERS .1. PREPARATION OF SOLUTION OF SAMPLE FOR TOTAL PHOSPHORUS DETERMINATION[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1957, 40 (03): : 690 - 700JACOB, KDHOFFMAN, WM
- [7] REPORT ON PHOSPHORUS IN FERTILIZERS .1. PREPARATION OF SOLUTION OF SAMPLE FOR TOTAL PHOSPHORUS DETERMINATION[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1956, 39 (03): : 562 - 579JACOB, KDHOFFMAN, WM
- [8] PHOTOMETRIC METHOD FOR DIRECT DETERMINATION OF AVAILABLE PHOSPHORUS IN FERTILIZERS[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1961, 44 (02): : 233 - +HOFFMAN, WMJOHNSON, FJGEHRKE, CWBURCH, WGBRABSON, JA
- [9] REPORT ON PHOSPHORUS IN FERTILIZERS .1. PHOTOMETRIC DETERMINATION OF WATER-SOLUBLE AND CITRATE-INSOLUBLE PHOSPHORUS[J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1959, 42 (03): : 503 - 507BRABSON, JAJACOB, KDWILHIDE, WDHOFFMAN, WM