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- [46] Compatibility of the ammonium lactate (AL) and sodium bicarbonate (Olsen) methods for determining available phosphorus in Swedish soils ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, 2009, 59 (04): : 373 - 378
- [47] A Comparison of Three Indophenol Blue Methods for Measuring Ammonium in Five Types of Soils in China ADVANCES IN CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING, PTS 1-5, 2013, 634-638 : 59 - 63
- [48] FIXED AMMONIUM IN NIGERIAN SOILS .2. RELATIONSHIP BETWEEN NATIVE FIXED AMMONIUM AND SOME SOIL CHARACTERISTICS JOURNAL OF SOIL SCIENCE, 1975, 26 (04): : 350 - 357
- [50] COMPARISON OF DIFFERENT METHODS OF FIXED-POINT TEMPERATURE EVALUATION XIX IMEKO WORLD CONGRESS: FUNDAMENTAL AND APPLIED METROLOGY, PROCEEDINGS, 2009, : 1509 - 1513