共 27 条
- [1] ALLISON FE, 1953, SOIL SCI, V75, P373
- [2] AMMONIUM FIXATION AND AVAILABILITY IN HARPSTER CLAY LOAM [J]. SOIL SCIENCE, 1951, 72 (03) : 187 - 200
- [3] [Anonymous], AGRONOMY
- [4] BOWER C. A., 1951, Proceedings. Soil Science Society of America, 1950, V15, P119
- [6] BREMNER J. M., 1959, JOUR AGRIC SCI, V52, P147, DOI 10.1017/S0021859600036625
- [7] DETERMINATION AND ISOTOPE-RATIO ANALYSIS OF DIFFERENT FORMS OF NITROGEN IN SOILS .3. EXCHANGEABLE AMMONIUM NITRATE AND NITRITE BY EXTRACTION-DISTILLATION METHODS [J]. SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1966, 30 (05): : 577 - &
- [10] HINMAN W. C., 1964, CANADIAN JOUR SOIL SCI, V44, P151