Soil: chemistry · Sorghum

1. Oryza sativaPositive and negative results2 papers: 1 positive, 1 negative or no effect
2. fertilizationPositive and negative results35 papers: 34 positive, 1 negative or no effect
3. inoculationPositive and negative results14 papers: 10 positive, 4 negative or no effect
4. organicPositive and negative results7 papers: 5 positive, 2 negative or no effect
5. nitrogenPositive and negative results6 papers: 3 positive, 3 negative or no effect
6. phosphorusPositive and negative results5 papers: 4 positive, 1 negative or no effect
7. rotationPositive and negative results5 papers: 4 positive, 1 negative or no effect
8. irrigationPositive and negative results4 papers: 2 positive, 2 negative or no effect
9. tillagePositive and negative results4 papers: 3 positive, 1 negative or no effect
10. mycorrhizaPositive and negative results3 papers: 2 positive, 1 negative or no effect
11. storagePositive and negative results3 papers: 1 positive, 2 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.