Ann. Tabac, 1987, Sect. 2-21, p. 49-66., ISSN.0399-0354
Effect of calcium-magnesium corrective supplies on the characteristics of soil and dark tobaccos - II
SEITA, Institut du Tabac, Bergerac, France
This paper summarizes eight-year trial of calcium-magnesium corrective supply to dark tobacco cultivated in bi-annual rotation with winter wheat. The use of magnesium limestone progressively increased the pH of the soil. An average gain of 1 unit of pH ...