I find myself uttering this phrase many times in a given day. It helps to keep things in perspective when trying to grow perfect turf in imperfect conditions. In a given day, golf course superintendents deal with many more variables out of their control than in their control. The daily plan I start with rarely comes to fruition. A good superintendent needs to be as proactive as possible to the ever-changing environmental and turfgrass conditions.
I have compiled a short list of variables that affect turfgrass health. As you can see by the list, many of these are not controllable.
CONTROLLABLE
Irrigation inputs
Nutrient inputs
Mowing heights/frequency
Cultural practices
UNCONTROLLABLE
Temperatures
Wind
Rain
Relative humidity
Solar radiation
Evapotranspiration
Microbial activity
Disease activity
Insect activity
Age of maintenance equipment
I have compiled a short list of variables that affect turfgrass health. As you can see by the list, many of these are not controllable.
CONTROLLABLE
Irrigation inputs
Nutrient inputs
Mowing heights/frequency
Cultural practices
UNCONTROLLABLE
Temperatures
Wind
Rain
Relative humidity
Solar radiation
Evapotranspiration
Microbial activity
Disease activity
Insect activity
Age of maintenance equipment