![]() ![]() Foliar NRE and PRE were significantly negatively correlated with fresh leaf N and P concentrations and soil total P concentration but significantly positively correlated with soil pH. In both the N-free and N-addition treatments, biochar amendments significantly reduced the foliar NRE and PRE of young bamboo but had the opposite effect on mature bamboo. N addition alone significantly increased the N resorption proficiency (NRP) and P resorption proficiency (PRP) but significantly decreased the NRE and PRE of both young and mature bamboo. Young bamboo showed significantly greater foliar N resorption efficiency (NRE) and P resorption efficiency (PRE) than mature bamboo. We investigated the effects of these treatments on N and phosphorus (P) resorption by young and mature bamboo plants, as well as the relationships between nutrient resorption and leaf and soil nutrient concentrations. In this study, we applied N (0, 30, 60, and 90 kg N ha −1 yr −1 defined as N0, N30, N60, and N90, respectively) and biochar (0, 20, and 40 t biochar ha −1 defined as BC0, BC20, and BC40, respectively) to the soil of a Moso bamboo plantation. Although the effects of nitrogen (N) and biochar fertilizers on soil nutrient concentrations and plant nutrient uptake have been studied, an understanding of how combined applications of N and biochar affect plant nutrient resorption in plantations is lacking. ![]() Nutrient resorption can affect plant growth, litter decomposition, and nutrient cycling. 3Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, China National Bamboo Research Center, Hangzhou, China.2Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, China.1State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.Jinpei Gao 1 †, Quan Li 1,2 †, Junbo Zhang 1, Kunkai Cui 1, Zhizhuang Wu 3, Man Shi 1 and Xinzhang Song 1 * ![]()
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