Soil: physics · Brassica napus (oilseed rape)

1. Brassica napus var. napusPositive and negative results3 papers: 1 positive, 2 negative or no effect
2. zinc atomResults agree2 papers: 0 positive, 2 negative or no effect
3. tillagePositive and negative results5 papers: 2 positive, 3 negative or no effect
4. coldPositive and negative results2 papers: 1 positive, 1 negative or no effect
5. fertilizationResults agree8 papers: 8 positive, 0 negative or no effect
6. salinityResults agree3 papers: 0 positive, 3 negative or no effect
7. droughtResults agree2 papers: 0 positive, 2 negative or no effect
8. irrigationResults agree2 papers: 2 positive, 0 negative or no effect
9. mulchingResults 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.