Co-Evaluation of Plant Leaf Nutrient Concentrations and Resorption in Response to Fertilization under Different Nutrient-Limited Conditions

Plant leaf nutrient concentrations and resorption are sensitive to fertilization, yet their co-responses under different nutrient-limited conditions have not been well studied. We conducted a meta-analysis from global dataset of 43 reports, including 130 observations studies with plant nitrogen (N) or phosphorus (P) efficiency (NRE) (PRE), in response fertilization divided by the thresholds N:P ratio values 10 20. The results showed that N generally increased concentration decreased NRE, greater magnitudes N-limited conditions. P also PRE, P-limited PRE only condition. Under co-limited conditions, however, did change PRE. Moreover, all but significantly NRE These findings suggest plants cope fertilization-induced limitation vs. at level nutrient-use strategies.