共 8 条
[1]
ALI M, 1973, INDIAN J AGRON, V20, P365
[2]
Allen O. N., 1957, EXPT SOIL BACTERIOLO
[3]
GULJEEV EI, 1963, BOT ZH, V47, P1152
[4]
GUNASENA H P M, 1979, Journal of the National Science Council of Sri Lanka, V7, P85