共 5 条
- [1] ERICKSON AE, 1971, 31 MICH AGR EXP STA
- [2] JOHNSTON WILLIAM R., 1965, SOIL SCI SOC AMER PROC, V29, P287
- [4] APPLIED NITROGEN LOSSES IN RELATION TO OXYGEN STATUS OF SOILS [J]. SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1969, 33 (04): : 575 - +