共 30 条
[1]
Anderson J. W., 1975, Sulphur in Australasian Agriculture (K.E. McLachlan, Editor), P87
[3]
Baker A. S., 1973, Sulphur Institute Journal, V9, P14
[4]
BANCROFT TA, 1968, TOPICS INTERMEDIATE, V1, P16
[5]
BEATON JD, 1971, MARKETING FERTILIZER, P16
[6]
BLANCHAR R. W., 1965, SOIL SCI SOC AMER PROC, V29, P71