- melatoninPositive and negative results5 papers: 4 positive, 1 negative or no effect
- sodium chlorideResults agree3 papers: 3 positive, 0 negative or no effect
- sodium nitroprussideResults agree3 papers: 3 positive, 0 negative or no effect
- Bacillus subtilisResults agree2 papers: 2 positive, 0 negative or no effect
- cadmium atomResults agree2 papers: 0 positive, 2 negative or no effect
- salinityPositive and negative results9 papers: 4 positive, 5 negative or no effect
- organicPositive and negative results6 papers: 5 positive, 1 negative or no effect
- droughtPositive and negative results5 papers: 3 positive, 2 negative or no effect
- applicationPositive and negative results3 papers: 2 positive, 1 negative or no effect
- biocharPositive and negative results3 papers: 2 positive, 1 negative or no effect
- infectionPositive and negative results2 papers: 1 positive, 1 negative or no effect
- sowing timePositive and negative results2 papers: 1 positive, 1 negative or no effect
- fertilizationResults agree11 papers: 11 positive, 0 negative or no effect
- irrigationResults agree7 papers: 7 positive, 0 negative or no effect
- loss of functionResults agree6 papers: 0 positive, 6 negative or no effect
- inoculationResults agree3 papers: 3 positive, 0 negative or no effect
- intercroppingResults agree3 papers: 3 positive, 0 negative or no effect
- nitrogenResults agree3 papers: 3 positive, 0 negative or no effect
- heatResults agree2 papers: 0 positive, 2 negative or no effect
- mulchingResults agree2 papers: 2 positive, 0 negative or no effect
- mycorrhizaResults agree2 papers: 2 positive, 0 negative or no effect
- nanoparticleResults agree2 papers: 2 positive, 0 negative or no effect
- phosphorusResults agree2 papers: 2 positive, 0 negative or no effect
- tillageResults 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.