共 12 条
[2]
CHIU TF, 1975, PLANT NUTRITIONAL ST, V1, P1
[3]
Jackson M.L., 1958, SOIL CHEM ANAL
[5]
OLSEN CR, 1954, US DEP AGR CIRC, V959
[6]
PETERSON FJ, 1974, 10TH T INT C SOIL SC, P177
[10]
SINGH M, UNPUBLISHED