共 8 条
[2]
HESTER JB, 1933, P AM SOC HORT SCI, V30, P460
[4]
NEMEC A, 1932, 2ND P INT C SOIL SCI, V4, P215
[5]
NEMEC A, 1930, WISS ARCH LANDW A, V4, P228
[6]
NYE PH, 1952, EMP J EXP AGR, V77, P47
[7]
TEICHERT W, 1946, IVA, V17, P135
[8]
1946, BDH BOOK ORGANIC REA, P158