芨芨草叶片养分特征对氮磷不同添加水平的响应
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Response of nutrient characteristics of Achnatherum splendens leaves to different levels of nitrogen and phosphorus addition
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图2. 不同养分处理条件下芨芨草成熟(A-C)和衰老叶片(D-F) N、P含量和N:P (平均值±标准偏差)。L、M、H分别表示低、中、高养分添加水平。不同大写和小写字母分别表示相同土壤养分添加水平和相同土壤N:P条件下不同处理之间具有显著性差异(p < 0.05)。 |
Fig. 2. N, P contents and N:P in green (A-C) and senescent leaves(D-F) of Achnatherum splendens under different treatment conditions (mean ± SD). L, M and H represent low, moderate and high nutrient addition level, respectively. Different uppercase and lowercase letters indicate the significant difference among different treatments under the same soil nutrient addition level and the same soil N:P, respectively (p < 0.05). |
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