Soil 300: Burned Out

When I was in high school when someone was called a burn out it typically involved illegal drugs that are now being promoted for medicinal purposes. When I was in college being burned out was the fatigue after finals when you hadn't slept much for a week. When I was 30 years old being burned out typically meant you were over doing work, church or farming, because you were a workahololic.  When I was 35 burned out could be applied to burning down the rainforest and the depleted soils that resulted 3 to 4 years later. When I was 40 burned out might be applied to a person who maxed out their credit. Do you see a trend here. None of these connotations is positive.

 I submit there is another definition of burned out today that makes sense in agriculture.