Nutrient: content · Pinus taeda (loblolly pine)

1. co2Positive and negative results9 papers: 2 positive, 7 negative or no effect
2. fertilizationPositive and negative results5 papers: 4 positive, 1 negative or no effect
3. limePositive and negative results2 papers: 1 positive, 1 negative or no effect
4. organicPositive and negative results2 papers: 1 positive, 1 negative or no effect
5. nitrogenResults agree2 papers: 0 positive, 2 negative or no effect
6. phResults agree2 papers: 0 positive, 2 negative or no effect
7. rainfallResults agree2 papers: 0 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.