Soil: physics · Hordeum vulgare (barley)

1. (+)-abscisic acidPositive and negative results4 papers: 3 positive, 1 negative or no effect
2. salicylic acidPositive and negative results2 papers: 1 positive, 1 negative or no effect
3. chromium atomResults agree2 papers: 0 positive, 2 negative or no effect
4. sodium chlorideResults agree2 papers: 0 positive, 2 negative or no effect
5. tillagePositive and negative results26 papers: 19 positive, 7 negative or no effect
6. fertilizationPositive and negative results11 papers: 10 positive, 1 negative or no effect
7. nitrogenPositive and negative results6 papers: 5 positive, 1 negative or no effect
8. radiationPositive and negative results4 papers: 1 positive, 3 negative or no effect
9. inoculationPositive and negative results3 papers: 2 positive, 1 negative or no effect
10. transplantingPositive and negative results3 papers: 2 positive, 1 negative or no effect
11. limePositive and negative results2 papers: 1 positive, 1 negative or no effect
12. storagePositive and negative results2 papers: 1 positive, 1 negative or no effect
13. salinityResults agree7 papers: 0 positive, 7 negative or no effect
14. droughtResults agree4 papers: 0 positive, 4 negative or no effect
15. organicResults agree4 papers: 4 positive, 0 negative or no effect
16. cover cropResults agree3 papers: 3 positive, 0 negative or no effect
17. intercroppingResults agree2 papers: 0 positive, 2 negative or no effect
18. otherResults 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.