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 0.018537166666666667 0.0 0.02823806666666667 Heat 0.014098300000000001 0.0 0.028196600000000002