condition mean min max Control 0.0 0.0 0.0 Nitrogen deficiency 0.0 0.0 0.0 Phosphate deficiency 0.0 0.0 0.0 Potassium deficiency 0.019895666666666666 0.0 0.059687 Heat 0.02270925 0.020527899999999998 0.0248906