- silicon atomPositive and negative results8 papers: 7 positive, 1 negative or no effect
- ammonium sulfatePositive and negative results4 papers: 3 positive, 1 negative or no effect
- brassinolidePositive and negative results2 papers: 1 positive, 1 negative or no effect
- zinc atomResults agree11 papers: 11 positive, 0 negative or no effect
- Triticum aestivumResults agree6 papers: 6 positive, 0 negative or no effect
- sulfur atomResults agree4 papers: 4 positive, 0 negative or no effect
- CyanobacteriotaResults agree3 papers: 3 positive, 0 negative or no effect
- AzospirillumResults agree2 papers: 2 positive, 0 negative or no effect
- Psophocarpus tetragonolobusResults agree2 papers: 2 positive, 0 negative or no effect
- amino acidResults agree2 papers: 2 positive, 0 negative or no effect
- ammoniumResults agree2 papers: 2 positive, 0 negative or no effect
- cyanoguanidineResults agree2 papers: 2 positive, 0 negative or no effect
- nitrification inhibitorResults agree2 papers: 2 positive, 0 negative or no effect
- oxamideResults agree2 papers: 2 positive, 0 negative or no effect
- potassium chlorideResults agree2 papers: 2 positive, 0 negative or no effect
- silicon dioxideResults agree2 papers: 2 positive, 0 negative or no effect
- zinc oxideResults agree2 papers: 2 positive, 0 negative or no effect
- nitrogenPositive and negative results262 papers: 217 positive, 45 negative or no effect
- fertilizationPositive and negative results220 papers: 202 positive, 18 negative or no effect
- irrigationPositive and negative results36 papers: 32 positive, 4 negative or no effect
- tillagePositive and negative results27 papers: 21 positive, 6 negative or no effect
- phosphorusPositive and negative results22 papers: 17 positive, 5 negative or no effect
- biocharPositive and negative results19 papers: 14 positive, 5 negative or no effect
- transplantingPositive and negative results18 papers: 16 positive, 2 negative or no effect
- potassiumPositive and negative results17 papers: 9 positive, 8 negative or no effect
- applicationPositive and negative results16 papers: 15 positive, 1 negative or no effect
- climate sitePositive and negative results16 papers: 15 positive, 1 negative or no effect
- organicPositive and negative results16 papers: 13 positive, 3 negative or no effect
- nanoparticlePositive and negative results12 papers: 11 positive, 1 negative or no effect
- densityPositive and negative results9 papers: 7 positive, 2 negative or no effect
- processingPositive and negative results9 papers: 8 positive, 1 negative or no effect
- floodingPositive and negative results8 papers: 5 positive, 3 negative or no effect
- limePositive and negative results8 papers: 6 positive, 2 negative or no effect
- loss of functionPositive and negative results4 papers: 3 positive, 1 negative or no effect
- rotationPositive and negative results4 papers: 3 positive, 1 negative or no effect
- in vitroPositive and negative results3 papers: 1 positive, 2 negative or no effect
- droughtPositive and negative results2 papers: 1 positive, 1 negative or no effect
- herbicidePositive and negative results2 papers: 1 positive, 1 negative or no effect
- trap barrierPositive and negative results2 papers: 1 positive, 1 negative or no effect
- botanicalResults agree16 papers: 16 positive, 0 negative or no effect
- inoculationResults agree13 papers: 13 positive, 0 negative or no effect
- otherResults agree7 papers: 7 positive, 0 negative or no effect
- storageResults agree6 papers: 6 positive, 0 negative or no effect
- transgenicResults agree5 papers: 5 positive, 0 negative or no effect
- co2Results agree4 papers: 4 positive, 0 negative or no effect
- cultivation systemResults agree3 papers: 3 positive, 0 negative or no effect
- mulchingResults agree3 papers: 3 positive, 0 negative or no effect
- shadeResults agree3 papers: 3 positive, 0 negative or no effect
- rainfallResults 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.