- sodium chloridePositive and negative results8 papers: 3 positive, 5 negative or no effect
- Oryza sativaPositive and negative results2 papers: 1 positive, 1 negative or no effect
- Zea maysPositive and negative results2 papers: 1 positive, 1 negative or no effect
- citric acidPositive and negative results2 papers: 1 positive, 1 negative or no effect
- nitric oxidePositive and negative results2 papers: 1 positive, 1 negative or no effect
- silicon atomPositive and negative results2 papers: 1 positive, 1 negative or no effect
- salicylic acidResults agree6 papers: 6 positive, 0 negative or no effect
- melatoninResults agree4 papers: 4 positive, 0 negative or no effect
- zinc atomResults agree4 papers: 4 positive, 0 negative or no effect
- cadmium atomResults agree3 papers: 0 positive, 3 negative or no effect
- hydrogen peroxideResults agree3 papers: 3 positive, 0 negative or no effect
- 24-epi-brassinolideResults agree2 papers: 2 positive, 0 negative or no effect
- alachlorResults agree2 papers: 2 positive, 0 negative or no effect
- ascorbic acidResults agree2 papers: 2 positive, 0 negative or no effect
- boron atomResults agree2 papers: 2 positive, 0 negative or no effect
- glutathioneResults agree2 papers: 2 positive, 0 negative or no effect
- jasmonic acidResults agree2 papers: 2 positive, 0 negative or no effect
- metribuzinResults agree2 papers: 2 positive, 0 negative or no effect
- paclobutrazolResults agree2 papers: 2 positive, 0 negative or no effect
- uniconazoleResults agree2 papers: 2 positive, 0 negative or no effect
- droughtPositive and negative results77 papers: 20 positive, 57 negative or no effect
- irrigationPositive and negative results69 papers: 61 positive, 8 negative or no effect
- fertilizationPositive and negative results22 papers: 21 positive, 1 negative or no effect
- salinityPositive and negative results22 papers: 6 positive, 16 negative or no effect
- co2Positive and negative results18 papers: 14 positive, 4 negative or no effect
- tillagePositive and negative results15 papers: 10 positive, 5 negative or no effect
- inoculationPositive and negative results13 papers: 10 positive, 3 negative or no effect
- nitrogenPositive and negative results9 papers: 8 positive, 1 negative or no effect
- phosphorusPositive and negative results9 papers: 6 positive, 3 negative or no effect
- seed treatmentPositive and negative results9 papers: 7 positive, 2 negative or no effect
- intercroppingPositive and negative results8 papers: 4 positive, 4 negative or no effect
- nanoparticlePositive and negative results8 papers: 7 positive, 1 negative or no effect
- stagePositive and negative results6 papers: 5 positive, 1 negative or no effect
- mycorrhizaPositive and negative results4 papers: 3 positive, 1 negative or no effect
- sowing timePositive and negative results4 papers: 2 positive, 2 negative or no effect
- uvPositive and negative results4 papers: 1 positive, 3 negative or no effect
- cover cropPositive and negative results3 papers: 1 positive, 2 negative or no effect
- in vitroPositive and negative results3 papers: 2 positive, 1 negative or no effect
- lightPositive and negative results3 papers: 1 positive, 2 negative or no effect
- pruningPositive and negative results3 papers: 2 positive, 1 negative or no effect
- radiationPositive and negative results3 papers: 1 positive, 2 negative or no effect
- soil waterPositive and negative results3 papers: 2 positive, 1 negative or no effect
- infectionPositive and negative results2 papers: 1 positive, 1 negative or no effect
- phPositive and negative results2 papers: 1 positive, 1 negative or no effect
- processingPositive and negative results2 papers: 1 positive, 1 negative or no effect
- applicationResults agree18 papers: 18 positive, 0 negative or no effect
- mulchingResults agree7 papers: 7 positive, 0 negative or no effect
- otherResults agree7 papers: 7 positive, 0 negative or no effect
- biocharResults agree6 papers: 6 positive, 0 negative or no effect
- heatResults agree4 papers: 0 positive, 4 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.