deficiency symptoms造句

at a more advanced stage clearer deficiency symptoms start to appear.

"Symptoms similar to potassium deficiency can occur due to salt injury, fungus attack, spray damage, etc. When diagnosing potassium deficiency in the field, the above conditions should be checked and eliminated as possible causes of apparent deficiency symptoms."

Low B12 levels give rise to elevated homocysteine levels with an associated increased risk of many illnesses, including stroke and heart disease, without any classical B12 deficiency symptoms.

mineradeficiency symptoms of the sweet potato