- boraxPositive and negative results10 papers: 9 positive, 1 negative or no effect
- zinc sulfatePositive and negative results10 papers: 9 positive, 1 negative or no effect
- Gibberellic acidPositive and negative results8 papers: 7 positive, 1 negative or no effect
- boron atomPositive and negative results5 papers: 4 positive, 1 negative or no effect
- 1-naphthaleneacetic acidPositive and negative results2 papers: 1 positive, 1 negative or no effect
- AzotobacterResults agree5 papers: 5 positive, 0 negative or no effect
- calcium nitrateResults agree3 papers: 3 positive, 0 negative or no effect
- salicylic acidResults agree3 papers: 3 positive, 0 negative or no effect
- calcium chloride dihydrateResults agree2 papers: 2 positive, 0 negative or no effect
- chlorideResults agree2 papers: 2 positive, 0 negative or no effect
- mepiquat chlorideResults agree2 papers: 2 positive, 0 negative or no effect
- poly(ethylene)Results agree2 papers: 2 positive, 0 negative or no effect
- sucroseResults agree2 papers: 2 positive, 0 negative or no effect
- zinc atomResults agree2 papers: 2 positive, 0 negative or no effect
- fertilizationPositive and negative results46 papers: 41 positive, 5 negative or no effect
- in vitroPositive and negative results11 papers: 9 positive, 2 negative or no effect
- inoculationPositive and negative results8 papers: 7 positive, 1 negative or no effect
- irrigationPositive and negative results7 papers: 5 positive, 2 negative or no effect
- potassiumPositive and negative results7 papers: 5 positive, 2 negative or no effect
- intercroppingPositive and negative results6 papers: 5 positive, 1 negative or no effect
- botanicalPositive and negative results3 papers: 2 positive, 1 negative or no effect
- pollinationPositive and negative results3 papers: 2 positive, 1 negative or no effect
- processingPositive and negative results3 papers: 2 positive, 1 negative or no effect
- pruningPositive and negative results3 papers: 2 positive, 1 negative or no effect
- applicationResults agree17 papers: 17 positive, 0 negative or no effect
- mulchingResults agree8 papers: 8 positive, 0 negative or no effect
- nitrogenResults agree8 papers: 8 positive, 0 negative or no effect
- graftingResults agree6 papers: 6 positive, 0 negative or no effect
- growing mediumResults agree6 papers: 6 positive, 0 negative or no effect
- mycorrhizaResults agree4 papers: 4 positive, 0 negative or no effect
- cultivation systemResults agree3 papers: 3 positive, 0 negative or no effect
- densityResults agree2 papers: 2 positive, 0 negative or no effect
- organicResults agree2 papers: 2 positive, 0 negative or no effect
- otherResults agree2 papers: 2 positive, 0 negative or no effect
- phosphorusResults agree2 papers: 2 positive, 0 negative or no effect
- sowing timeResults agree2 papers: 2 positive, 0 negative or no effect
- trap barrierResults 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.