Nutrient: efficiency · Beta vulgaris (beet)

1. boron atomResults agree2 papers: 2 positive, 0 negative or no effect
2. iron atomResults agree2 papers: 2 positive, 0 negative or no effect
3. nitrogenPositive and negative results7 papers: 6 positive, 1 negative or no effect
4. fertilizationPositive and negative results6 papers: 4 positive, 2 negative or no effect
5. irrigationResults agree2 papers: 2 positive, 0 negative or no effect
6. phosphorusResults agree2 papers: 2 positive, 0 negative or no effect
7. potassiumResults agree2 papers: 2 positive, 0 negative or no effect

Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.