共 21 条
- [1] ERROR AND ERROR PROPAGATION IN DETERMINATION OF PH-VALUES FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1978, 293 (01): : 33 - 35
- [2] NOMOGRAPH FOR DETERMINATION OF PH-VALUES OF MONOVALENT ACIDS AND BASES FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1977, 287 (4-5): : 320 - 320
- [4] DIAGRAM FOR GRAPHICAL DETERMINATION OF PH-VALUES OF MONOVALENT ACIDS AND BASES FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1975, 277 (03): : 203 - 204
- [5] DETERMINATION AND CALCULATION OF PH-VALUES OF AQUEOUS-METHANOLIC SOLUTIONS PHARMAZIE, 1987, 42 (12): : 820 - 823
- [8] REPORT ON EXCHANGEABLE HYDROGEN IN SOILS - PH-VALUES RELATED TO DEGREE OF CALCIUM SATURATION UNDER VARYING CONDITIONS JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1954, 37 (02): : 270 - 277
- [10] DETERMINATION OF LIMIT VALUES FOR PLANT-AVAILABLE MAGNESIUM IN ARABLE SOILS OF THE GDR ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE, 1986, 30 (04): : 243 - 250