- zinc atomPositive and negative results14 papers: 13 positive, 1 negative or no effect
- iron atomPositive and negative results5 papers: 3 positive, 2 negative or no effect
- RhizobiumResults agree8 papers: 8 positive, 0 negative or no effect
- calcium atomResults agree7 papers: 7 positive, 0 negative or no effect
- sulfur atomResults agree6 papers: 6 positive, 0 negative or no effect
- paclobutrazolResults agree4 papers: 4 positive, 0 negative or no effect
- molybdenum atomResults agree3 papers: 3 positive, 0 negative or no effect
- ethyl methanesulfonateResults agree2 papers: 2 positive, 0 negative or no effect
- iron(2+) sulfate (anhydrous)Results agree2 papers: 2 positive, 0 negative or no effect
- magnesium atomResults agree2 papers: 2 positive, 0 negative or no effect
- manganese atomResults agree2 papers: 2 positive, 0 negative or no effect
- poly(ethylene)Results agree2 papers: 2 positive, 0 negative or no effect
- silicon atomResults agree2 papers: 2 positive, 0 negative or no effect
- droughtResults differ8 papers: 3 positive, 5 negative or no effect · 2 pairs of papers confirmed to differ
- fertilizationPositive and negative results48 papers: 47 positive, 1 negative or no effect
- applicationPositive and negative results22 papers: 20 positive, 2 negative or no effect
- phosphorusPositive and negative results17 papers: 16 positive, 1 negative or no effect
- herbicidePositive and negative results6 papers: 3 positive, 3 negative or no effect
- otherPositive and negative results6 papers: 5 positive, 1 negative or no effect
- radiationPositive and negative results6 papers: 3 positive, 3 negative or no effect
- sowing timePositive and negative results6 papers: 5 positive, 1 negative or no effect
- densityPositive and negative results5 papers: 3 positive, 2 negative or no effect
- irrigationPositive and negative results5 papers: 4 positive, 1 negative or no effect
- processingPositive and negative results4 papers: 1 positive, 3 negative or no effect
- storagePositive and negative results3 papers: 2 positive, 1 negative or no effect
- potassiumResults agree16 papers: 16 positive, 0 negative or no effect
- inoculationResults agree14 papers: 14 positive, 0 negative or no effect
- limeResults agree12 papers: 12 positive, 0 negative or no effect
- nanoparticleResults agree9 papers: 9 positive, 0 negative or no effect
- nitrogenResults agree6 papers: 6 positive, 0 negative or no effect
- botanicalResults agree4 papers: 4 positive, 0 negative or no effect
- mycorrhizaResults agree3 papers: 3 positive, 0 negative or no effect
- organicResults agree3 papers: 3 positive, 0 negative or no effect
- co2Results agree2 papers: 2 positive, 0 negative or no effect
- heatResults agree2 papers: 0 positive, 2 negative or no effect
- infectionResults agree2 papers: 0 positive, 2 negative or no effect
- mulchingResults agree2 papers: 2 positive, 0 negative or no effect
- salinityResults agree2 papers: 0 positive, 2 negative or no effect
- seed treatmentResults agree2 papers: 2 positive, 0 negative or no effect
- soil waterResults agree2 papers: 2 positive, 0 negative or no effect
- stageResults 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.