Azospirillum brasilense · Zea mays (maize)

1. inoculationResults differ39 papers: 30 positive, 9 negative or no effect · 1 pair of papers confirmed to differ
2. nitrogenPositive and negative results6 papers: 5 positive, 1 negative or no effect
3. fertilizationPositive and negative results3 papers: 2 positive, 1 negative or no effect
4. applicationResults agree4 papers: 4 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.