- sodium chlorideResults differ18 papers: 3 positive, 15 negative or no effect · 4 pairs of papers confirmed to differ
- zinc atomResults differ12 papers: 11 positive, 1 negative or no effect · 1 pair of papers confirmed to differ
- Gibberellic acidResults differ5 papers: 3 positive, 2 negative or no effect · 1 pair of papers confirmed to differ
- lead atomResults differ3 papers: 0 positive, 3 negative or no effect · 1 pair of papers confirmed to differ
- boron atomPositive and negative results6 papers: 5 positive, 1 negative or no effect
- copper atomPositive and negative results3 papers: 2 positive, 1 negative or no effect
- phosphatePositive and negative results2 papers: 1 positive, 1 negative or no effect
- silver(1+) nitratePositive and negative results2 papers: 1 positive, 1 negative or no effect
- 1-naphthaleneacetic acidResults agree10 papers: 10 positive, 0 negative or no effect
- N-benzyladenineResults agree9 papers: 9 positive, 0 negative or no effect
- sulfur atomResults agree7 papers: 7 positive, 0 negative or no effect
- cadmium atomResults agree5 papers: 0 positive, 5 negative or no effect
- iron atomResults agree5 papers: 5 positive, 0 negative or no effect
- zinc sulfateResults agree5 papers: 5 positive, 0 negative or no effect
- ThidiazuronResults agree4 papers: 4 positive, 0 negative or no effect
- chitosanResults agree4 papers: 4 positive, 0 negative or no effect
- salicylic acidResults agree4 papers: 4 positive, 0 negative or no effect
- Pseudomonas fluorescensResults agree3 papers: 3 positive, 0 negative or no effect
- ascorbic acidResults agree3 papers: 3 positive, 0 negative or no effect
- elemental sulfurResults agree3 papers: 3 positive, 0 negative or no effect
- potassium nitrateResults agree3 papers: 3 positive, 0 negative or no effect
- sucroseResults agree3 papers: 3 positive, 0 negative or no effect
- AzospirillumResults agree2 papers: 2 positive, 0 negative or no effect
- Trichoderma harzianumResults agree2 papers: 2 positive, 0 negative or no effect
- cobalt atomResults agree2 papers: 2 positive, 0 negative or no effect
- glycine betaineResults agree2 papers: 2 positive, 0 negative or no effect
- melatoninResults agree2 papers: 2 positive, 0 negative or no effect
- silicon atomResults agree2 papers: 2 positive, 0 negative or no effect
- sodium atomResults agree2 papers: 2 positive, 0 negative or no effect
- fertilizationPositive and negative results36 papers: 34 positive, 2 negative or no effect
- seed treatmentPositive and negative results23 papers: 20 positive, 3 negative or no effect
- droughtPositive and negative results22 papers: 1 positive, 21 negative or no effect
- nitrogenPositive and negative results20 papers: 18 positive, 2 negative or no effect
- irrigationPositive and negative results15 papers: 7 positive, 8 negative or no effect
- densityPositive and negative results11 papers: 6 positive, 5 negative or no effect
- nanoparticlePositive and negative results7 papers: 6 positive, 1 negative or no effect
- coldPositive and negative results6 papers: 4 positive, 2 negative or no effect
- tillagePositive and negative results6 papers: 3 positive, 3 negative or no effect
- botanicalPositive and negative results5 papers: 2 positive, 3 negative or no effect
- stagePositive and negative results5 papers: 2 positive, 3 negative or no effect
- biocharPositive and negative results4 papers: 3 positive, 1 negative or no effect
- classPositive and negative results4 papers: 3 positive, 1 negative or no effect
- propertyPositive and negative results4 papers: 1 positive, 3 negative or no effect
- rainfallPositive and negative results3 papers: 2 positive, 1 negative or no effect
- sowing timePositive and negative results3 papers: 2 positive, 1 negative or no effect
- processingPositive and negative results2 papers: 1 positive, 1 negative or no effect
- radiationPositive and negative results2 papers: 1 positive, 1 negative or no effect
- salinityResults agree30 papers: 0 positive, 30 negative or no effect
- applicationResults agree14 papers: 14 positive, 0 negative or no effect
- heavy metalResults agree5 papers: 0 positive, 5 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.