In a typical approach to identifying essential elements in plants, a plant grown hydroponically in a solution containing all known nutrients is transferred to a solution _______.This approach is least effective at detecting nutrients needed in _______ amounts.

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This approach involves removing one nutrient at a time to see if the plant shows any deficiency symptoms, which effectively identifies nutrients needed in large amounts but is less effective for those needed in trace amounts, as their absence might not show immediate or clear deficiency symptoms.

In a Typical Approach to Identifying Essential Elements in Plants