Yield · Viridiplantae (plants)

1. iron atomPositive and negative results4 papers: 2 positive, 2 negative or no effect
2. sulfatePositive and negative results2 papers: 1 positive, 1 negative or no effect
3. salicylic acidResults agree3 papers: 3 positive, 0 negative or no effect
4. (2-chloroethyl)phosphonic acidResults agree2 papers: 2 positive, 0 negative or no effect
5. Sinapis albaResults agree2 papers: 2 positive, 0 negative or no effect
6. manganese atomResults agree2 papers: 2 positive, 0 negative or no effect
7. potassium nitrateResults agree2 papers: 2 positive, 0 negative or no effect
8. sulfur atomResults agree2 papers: 2 positive, 0 negative or no effect
9. fertilizationPositive and negative results27 papers: 22 positive, 5 negative or no effect
10. nitrogenPositive and negative results10 papers: 8 positive, 2 negative or no effect
11. inoculationPositive and negative results8 papers: 5 positive, 3 negative or no effect
12. droughtPositive and negative results7 papers: 2 positive, 5 negative or no effect
13. irrigationPositive and negative results7 papers: 6 positive, 1 negative or no effect
14. infectionPositive and negative results5 papers: 3 positive, 2 negative or no effect
15. phosphorusPositive and negative results5 papers: 3 positive, 2 negative or no effect
16. applicationPositive and negative results4 papers: 3 positive, 1 negative or no effect
17. grazingPositive and negative results4 papers: 2 positive, 2 negative or no effect
18. lightPositive and negative results4 papers: 3 positive, 1 negative or no effect
19. co2Positive and negative results3 papers: 1 positive, 2 negative or no effect
20. growing mediumPositive and negative results3 papers: 2 positive, 1 negative or no effect
21. heatPositive and negative results3 papers: 2 positive, 1 negative or no effect
22. limePositive and negative results3 papers: 1 positive, 2 negative or no effect
23. mycorrhizaPositive and negative results3 papers: 2 positive, 1 negative or no effect
24. uvPositive and negative results3 papers: 2 positive, 1 negative or no effect
25. graftingPositive and negative results2 papers: 1 positive, 1 negative or no effect
26. pollinationPositive and negative results2 papers: 1 positive, 1 negative or no effect
27. radiationPositive and negative results2 papers: 1 positive, 1 negative or no effect
28. botanicalResults agree4 papers: 4 positive, 0 negative or no effect
29. climate siteResults agree4 papers: 4 positive, 0 negative or no effect
30. otherResults agree4 papers: 4 positive, 0 negative or no effect
31. potassiumResults agree4 papers: 4 positive, 0 negative or no effect
32. pruningResults agree3 papers: 3 positive, 0 negative or no effect
33. densityResults agree2 papers: 2 positive, 0 negative or no effect
34. in vitroResults agree2 papers: 2 positive, 0 negative or no effect
35. organicResults agree2 papers: 2 positive, 0 negative or no effect
36. sowing timeResults agree2 papers: 2 positive, 0 negative or no effect
37. stageResults agree2 papers: 0 positive, 2 negative or no effect
38. tillageResults 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.