Tob. Sci., 1966, 10-08, p. 35-40, ISSN.0082-4623
The influenced of manganese, iron, calcium, phosphorus, and chlorine on the occurrence and chemical composition of grey tobacco in Ontario
Experimental Farm, Canada Department of Agriculture, Delhi, Ontario, Canada; Soil Research Institute, Canada Department of Agriculture, Ottawa, Ontario, Canada
Three experiments were conducted with a soil known to produce grey tobacco. Levels of calcium and phosphorus were combined for treatments in the field. Iron, manganese, calcium, and phosphorus were applied to the soil in one greenhouse experiment and...