- Oryza sativaPositive and negative results2 papers: 1 positive, 1 negative or no effect
- fertilizationPositive and negative results35 papers: 34 positive, 1 negative or no effect
- inoculationPositive and negative results14 papers: 10 positive, 4 negative or no effect
- organicPositive and negative results7 papers: 5 positive, 2 negative or no effect
- nitrogenPositive and negative results6 papers: 3 positive, 3 negative or no effect
- phosphorusPositive and negative results5 papers: 4 positive, 1 negative or no effect
- rotationPositive and negative results5 papers: 4 positive, 1 negative or no effect
- irrigationPositive and negative results4 papers: 2 positive, 2 negative or no effect
- tillagePositive and negative results4 papers: 3 positive, 1 negative or no effect
- mycorrhizaPositive and negative results3 papers: 2 positive, 1 negative or no effect
- storagePositive and negative results3 papers: 1 positive, 2 negative or no effect
- biocharResults agree9 papers: 9 positive, 0 negative or no effect
- nanoparticleResults agree4 papers: 4 positive, 0 negative or no effect
- intercroppingResults agree3 papers: 3 positive, 0 negative or no effect
- limeResults agree3 papers: 3 positive, 0 negative or no effect
- otherResults agree3 papers: 3 positive, 0 negative or no effect
- co2Results agree2 papers: 2 positive, 0 negative or no effect
- processingResults agree2 papers: 2 positive, 0 negative or no effect
- salinityResults agree2 papers: 0 positive, 2 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.