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- [24] PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS IN FEEDING STUFFS AND FERTILIZERS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1955, 38 (04): : 898 - 903
- [25] REPORT ON PHOSPHORUS IN FERTILIZERS - PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1958, 41 (03): : 517 - 524
- [26] Determination of total nitrogen in fertilizers by the analyzer macro N (process modified by Dumas) in comparison with classical Kjeldahl distillation AGRIBIOLOGICAL RESEARCH-ZEITSCHRIFT FUR AGRARBIOLOGIE AGRIKULTURCHEMIE OKOLOGIE, 1996, 49 (01): : 38 - 51
- [27] The determination of total nitrogen including nitric nitrogen JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY-US, 1919, 11 (05): : 306 - 311