Ann. Tabac, 1991, Sect. 2-23, p. 95-126., ISSN.0399-0354
Anion-cation balance in the tobacco plant. Particular significance of the difference between alkalinity of total ash (ATA) and total nitrogen content (N)
SEITA, Institut du Tabac, Bergerac, France
cf. CORESTA Inf. Bull., 1990, 3-4 p. 12-23....