A soil analysis would be a wise move. In the mean time here is some info on Chlorine gleaned from the book by Tso "Physiology and Biochemistry of Tobacco Plants"
Chlorine content in some studies have varied from .422% in th elower leaves to 1.011% for the upper leaves. Other studies using Burley have shown uniform Chlorine leaves but in Flue Cured Tobacco the highest level is in the lower leaves and decreases as you go up the plant. I'm thinking Ben might have marginally high Chlorine levels that go over the limit for combustibility when he reaches the top of his plants.
Chlorine content of leaves is inversely related to pH. A more alkaline soil produces less Chlorine in the leaf.
Excess Chlorine causes an excess of Calcium reulting in a skewed Potassium to Calcium ratio.
Chlorine is inhibited by rich sources of nitrogen.
So, if it were me I'd get a soil test before planting again and look real hard at your Chlorine, Potassium, Calcium and Nitrogen levels.
As far as I know once you have grown a non combustable leave there is nothing you can do other than mix it in small amounts with a fast burning tobacco like a Flue Cured... or sell it/give it to guys that make chew or snuss!
Chlorine content in some studies have varied from .422% in th elower leaves to 1.011% for the upper leaves. Other studies using Burley have shown uniform Chlorine leaves but in Flue Cured Tobacco the highest level is in the lower leaves and decreases as you go up the plant. I'm thinking Ben might have marginally high Chlorine levels that go over the limit for combustibility when he reaches the top of his plants.
Chlorine content of leaves is inversely related to pH. A more alkaline soil produces less Chlorine in the leaf.
Excess Chlorine causes an excess of Calcium reulting in a skewed Potassium to Calcium ratio.
Chlorine is inhibited by rich sources of nitrogen.
So, if it were me I'd get a soil test before planting again and look real hard at your Chlorine, Potassium, Calcium and Nitrogen levels.
As far as I know once you have grown a non combustable leave there is nothing you can do other than mix it in small amounts with a fast burning tobacco like a Flue Cured... or sell it/give it to guys that make chew or snuss!