Growth of old field herbs on a nitrogen gradient

Earth & Environmental Sciences

• old field 100%
• herb 76%
• root-shoot ratio 45%
• nitrogen 42%
• colonization 26%
• seed 24%
• competitive displacement 23%
• intraspecific competition 19%
• secondary succession 19%
• soil 18%
• soil nitrogen 16%
• plain 10%
• sand 8%
• biomass 8%
• resource 7%

Agriculture & Biology

• herbs 64%
• nitrogen 41%
• root shoot ratio 39%
• soil 36%
• secondary succession 25%
• shoots 22%
• intraspecific competition 21%
• seeds 18%
• sand 15%
• biomass 11%