共 34 条
[1]
BEAUFILS E. R., 1971, Fertilizer Society of South Africa Journal, V1, P1
[2]
Beaufils E. R., 1976, Proceedings, South African Sugar Technologists' Association, P118
[3]
Beaufils E.R., 1973, SOIL SCI B U NATAL, V1
[4]
Beaufils E.R., 1957, FERTILITE, V3, P27
[5]
BEAUFILS ER, 1977, P S AFR SUG TECH ASS, V5, P123
[6]
BEVERLY RB, 1984, J AM SOC HORTIC SCI, V109, P649
[8]
CHAPMAN H. D., 1967, SSSA [SOIL SCI SOC AMER] SPEC PUBL SER, V2, P77
[9]
CHAPMAN HD, 1966, DIGNOSTIC CRITERIA P