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 0.006785477777777777 0.0 0.012104799999999999 Heat 0.007236933333333333 0.0 0.014473866666666666