- boric acidPositive and negative results4 papers: 3 positive, 1 negative or no effect
- 2,4-DPositive and negative results2 papers: 1 positive, 1 negative or no effect
- boron atomPositive and negative results2 papers: 1 positive, 1 negative or no effect
- zinc atomResults agree6 papers: 6 positive, 0 negative or no effect
- zinc sulfateResults agree6 papers: 6 positive, 0 negative or no effect
- Gibberellic acidResults agree3 papers: 3 positive, 0 negative or no effect
- chitosanResults agree3 papers: 3 positive, 0 negative or no effect
- potassium sulfateResults agree3 papers: 3 positive, 0 negative or no effect
- Septoglomus deserticolaResults agree2 papers: 2 positive, 0 negative or no effect
- iron atomResults agree2 papers: 2 positive, 0 negative or no effect
- triazolesResults agree2 papers: 2 positive, 0 negative or no effect
- applicationPositive and negative results8 papers: 7 positive, 1 negative or no effect
- storagePositive and negative results5 papers: 2 positive, 3 negative or no effect
- processingPositive and negative results4 papers: 2 positive, 2 negative or no effect
- pruningPositive and negative results3 papers: 2 positive, 1 negative or no effect
- graftingPositive and negative results2 papers: 1 positive, 1 negative or no effect
- herbicidePositive and negative results2 papers: 1 positive, 1 negative or no effect
- infectionPositive and negative results2 papers: 1 positive, 1 negative or no effect
- nitrogenResults agree5 papers: 5 positive, 0 negative or no effect
- fertilizationResults agree4 papers: 4 positive, 0 negative or no effect
- inoculationResults agree3 papers: 3 positive, 0 negative or no effect
- mulchingResults agree3 papers: 3 positive, 0 negative or no effect
- mycorrhizaResults agree3 papers: 3 positive, 0 negative or no effect
- ozoneResults agree3 papers: 3 positive, 0 negative or no effect
- physical treatmentResults agree3 papers: 3 positive, 0 negative or no effect
- radiationResults agree3 papers: 3 positive, 0 negative or no effect
- botanicalResults agree2 papers: 2 positive, 0 negative or no effect
- coldResults agree2 papers: 0 positive, 2 negative or no effect
- heatResults agree2 papers: 2 positive, 0 negative or no effect
- micronutrientResults 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.