condition mean min max Control 5.367955 3.7817 8.939683333333333 Nitrogen deficiency 6.620992222222222 5.98846 7.70777 Phosphate deficiency 16.576935555555554 6.19584 28.8217 Potassium deficiency 11.594943333333333 5.85361 22.9924 Heat 5.958875 5.87472 6.04303