condition mean min max Control 0.0 0.0 0.0 Nitrogen deficiency 0.01241042222222222 0.0 0.03194536666666666 Phosphate deficiency 0.0014524555555555556 0.0 0.004357366666666667 Potassium deficiency 0.0 0.0 0.0 Heat 0.0 0.0 0.0