共 16 条
[3]
BAILEY NT, 1959, STATISTICAL METHODS
[5]
CHINNERY LE, 1978, THESIS NEW U ULSTER
[6]
HARDING CP, 1970, THESIS U YORK
[7]
JONES HE, 1968, THESIS U WALES
[8]
KNEZEK BD, 1971, SOIL SCI PLANT ANAL, V2, P37
[9]
Russell E.W., 1975, SOIL CONDITIONS PLAN