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为了给笋用竹林土壤合理补充养分提供科学依据,以红哺鸡竹(Phyllostachys iridescens)为对象,开展了长期施用不同肥料(生物有机肥、复合肥、菜籽饼肥和不施肥(对照))竹林2年生立竹叶片C、N、P化学计量学特征的研究。结果表明:叶片C、N、P含量分别为514.26～582.77、18.25～30.20、1.20～1.75mg·g-1,施肥竹林均极显著或显著高于对照竹林,以施菜籽饼肥竹林叶片C含量最高,施生物有机肥竹林叶片N、P含量最高;叶片C:N、C:P分别为18.71～35.02、304.41～458.52,总体上施肥竹林较对照竹林极显著降低,施肥竹林N、P养分利用效率显著降低;叶片N:P为15.28～17.12,相对稳定,施肥竹林与对照竹林无显著差异;叶片N、P含量呈极显著正相关,N含量与N:P相关性不显著,而P含量与N:P呈极显著负相关。
In order to provide a scientific basis for bamboo shoots to rationally replenish nutrients in bamboo soils, long-term application of different fertilizers (bio-organic fertilizer, compound fertilizer, rapeseed cake fertilizer and no fertilization (control)) was carried out on Phyllostachys iridescens Study on the stoichiometry of C, N and P in 2 - year - old bamboo leaves. The results showed that the contents of C, N and P in leaf were 514.26 ~ 582.77, 18.25 ~ 30.20 and 1.20 ~ 1.75 mg · g-1, respectively. The fertilization bamboo forest was significantly or significantly higher than the control bamboo forest. The content of N and P in the leaves of bamboo forest with the highest bio-organic fertilizer was the highest. The leaf C: N and C: P were 18.71 ~ 35.02 and 304.41 ~ 458.52, respectively. In general, the fertilized bamboo forest was significantly lower than the control bamboo forest. The N and P contents of leaves were significantly different from those of the control bamboo plantations. The N and P contents of leaves were not significantly correlated with N and P, There was a significant negative correlation with N: P.