Nutrient: content · Allium cepa (onion)

1. sulfur atomPositive and negative results16 papers: 14 positive, 2 negative or no effect
2. zinc atomPositive and negative results14 papers: 13 positive, 1 negative or no effect
3. selenium atomPositive and negative results6 papers: 4 positive, 2 negative or no effect
4. copper atomPositive and negative results5 papers: 4 positive, 1 negative or no effect
5. Oryza sativaPositive and negative results3 papers: 2 positive, 1 negative or no effect
6. Triticum aestivumPositive and negative results3 papers: 1 positive, 2 negative or no effect
7. iron atomResults agree4 papers: 4 positive, 0 negative or no effect
8. AzospirillumResults agree3 papers: 3 positive, 0 negative or no effect
9. ammonium sulfateResults agree3 papers: 3 positive, 0 negative or no effect
10. boron atomResults agree3 papers: 3 positive, 0 negative or no effect
11. cadmium atomResults agree3 papers: 0 positive, 3 negative or no effect
12. calcium atomResults agree3 papers: 3 positive, 0 negative or no effect
13. silicon atomResults agree3 papers: 3 positive, 0 negative or no effect
14. AzotobacterResults agree2 papers: 2 positive, 0 negative or no effect
15. hydrogen sulfideResults agree2 papers: 0 positive, 2 negative or no effect
16. pectinResults agree2 papers: 0 positive, 2 negative or no effect
17. sulfateResults agree2 papers: 2 positive, 0 negative or no effect
18. fertilizationPositive and negative results90 papers: 81 positive, 9 negative or no effect
19. nitrogenPositive and negative results30 papers: 27 positive, 3 negative or no effect
20. applicationPositive and negative results15 papers: 13 positive, 2 negative or no effect
21. irrigationPositive and negative results14 papers: 10 positive, 4 negative or no effect
22. phosphorusPositive and negative results13 papers: 10 positive, 3 negative or no effect
23. otherPositive and negative results12 papers: 10 positive, 2 negative or no effect
24. organicPositive and negative results6 papers: 4 positive, 2 negative or no effect
25. cover cropPositive and negative results2 papers: 1 positive, 1 negative or no effect
26. processingPositive and negative results2 papers: 1 positive, 1 negative or no effect
27. inoculationResults agree26 papers: 26 positive, 0 negative or no effect
28. mycorrhizaResults agree16 papers: 16 positive, 0 negative or no effect
29. potassiumResults agree12 papers: 12 positive, 0 negative or no effect
30. biocharResults agree6 papers: 6 positive, 0 negative or no effect
31. nanoparticleResults agree6 papers: 6 positive, 0 negative or no effect
32. limeResults agree5 papers: 5 positive, 0 negative or no effect
33. herbicideResults agree4 papers: 4 positive, 0 negative or no effect
34. micronutrientResults agree4 papers: 4 positive, 0 negative or no effect
35. botanicalResults agree3 papers: 3 positive, 0 negative or no effect
36. cultivation systemResults agree2 papers: 2 positive, 0 negative or no effect
37. densityResults agree2 papers: 2 positive, 0 negative or no effect
38. mulchingResults agree2 papers: 2 positive, 0 negative or no effect
39. salinityResults agree2 papers: 0 positive, 2 negative or no effect
40. transplantingResults 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.