共 22 条
- [1] BINGHAM S. W., 1959, WEEDS, V7, P167, DOI 10.2307/4040217
- [2] BLACK CA, 1965, 9 AM SOC AGR INC ED, P552
- [3] COGGINS C. W., 1959, WEEDS, V7, P349, DOI 10.2307/4040344
- [4] DARDING RL, 1967, P SWC, V20, P370
- [5] DAY PR, 1965, 9 AM SOC AGR INC MON, P552
- [6] DUBEY H. D., 1964, SOIL SCI, V97, P334, DOI 10.1097/00010694-196405000-00007
- [8] FOX KA, 1954, AMS341 USDA AGR MARK
- [9] FRUEND JE, 1960, MODERN ELEMENTARY ST
- [10] Jackson M. L., 1958, SOIL CHEM ANAL, P219