共 6 条
[2]
ANDREW CW, 1952, J SCI RES, V3, P431
[3]
HOLMES RS, 1957, USDA YEARBOOK AGR, P111
[4]
KELLEY WP, 1912, HAWAII AGR EXP STA B, V26, P7
[5]
SEATZ LF, 1957, USDA YEARBOOK AGR, P115
[6]
TISDALE SAMUEL L., 1950, SOIL SCI SOC AMER PROC, V14, P131