共 18 条
- [1] Alexander M., 1965, SOIL NITROGEN, V10, P307, DOI [10.2134/agronmonogr10, DOI 10.2134/AGRONMONOGR10]
- [2] ANDERSON O. E., 1955, SOIL SCI, V80, P313, DOI 10.1097/00010694-195510000-00010
- [3] [Anonymous], AGRONOMY
- [4] BARNES GH, 1962, USDA1273 TECH B
- [5] BOLLEN WB, 1968, BIOL ALDER, P141
- [6] Bremner J.M., 1965, METHODS SOIL ANAL, P1149, DOI DOI 10.2134/AGRONMONOGR9.2.C32
- [7] COLE DW, 1968, 4 U WASH FOR RES MON
- [8] CRANE WJB, 1972, THESIS U WASH
- [9] HEILMAN P, 1971, 535 WASH AGR EXP STA
- [10] KING J, 1966, 8 WEY CO FOR RES CEN