共 10 条
- [2] BISAL FREDERICK, 1964, SOIL SCI, V98, P345, DOI 10.1097/00010694-196411000-00012
- [4] BRIGGS LJ, 1907, 45 BUR SOILS US DEP
- [5] CHEPIL W. S., 1963, ADVAN AGRON, V15, P211, DOI 10.1016/S0065-2113(08)60400-9
- [8] MITCHELL J, 1944, 12 SOIL SURV REP U S
- [9] 1958, SOIL RESEARCH LAB EX
- [10] 1957, SOIL RESEARCH LAB EX