Soil: biology · Cenchrus americanus (pearl millet)

1. inoculationPositive and negative results7 papers: 6 positive, 1 negative or no effect
2. fertilizationResults agree4 papers: 4 positive, 0 negative or no effect
3. nitrogenResults agree3 papers: 3 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.