共 24 条
[21]
TILLER GK, 1958, J SOIL SCI, V9, P225
[22]
TINSLEY J, 1950, 4 T INT C SOIL SCI A, V1, P161
[23]
Tyner E.H, 1940, SOIL SCI SOC AM P, V4, P106
[24]
VEDRATTAN, 19602 IC MET BUR ANN