施肥对猴耳环幼苗生长的影响
Effects of Fertilization on Growth of Archidendron clypearia Seedlings
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Abstract: The effects of applying N(urea, 46% N), P(phosphate, 12% P2O5) and K(potassium sulphate, 54% K2O) fertilizers on the growth performance and biomass yield of 8-month-old Archidendron clypearia seedlings were examined by L9 orthogonal array with 3 replicates in the nursery of Zengcheng Forest Farm of Guangzhou, Guangdong Province. The test seedlings were potted with the subsoil of total N 0.0484%, total P 0.1518% and total K 1.2629%, and fertilized at the 2nd and 6th months with the application rates of 0, 10 and 20 mg of N, 0, 20 and 50 mg of P and 0, 10 and 20 mg of K per seedling. The results showed that the diameter at ground level(DGL), the height and the oven-dried weight biomass of 8-month-old seedlings differed significantly at P=0.05. The combined application dose of 20 mg N, 20 mg P and 0 mg K per seedling resulted in the best seedling growth and biomass yield. N fertilizer was a significant factor in the growth of DGL and height of A. clypearia seedlings. P fertilizer had no significant effects on both DGL and height, while K fertilizer only affected DGL significantly. Analysis of the leaf and root stoichiometry suggested that N may be the most single limiting nutrient, A. clypearia seedlings used N more efficiently than they used P.
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Key words:
- Archidendron clypearia
- / fertilization
- / seedling growth
- / stoichiometry
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[1] 郑万均.中国树木志[M].北京:中国林业出版社, 1985:191-194. [2] 吴德邻.广东植物志[M].广州:广东科技出版社, 2006:144. [3] Pitman N C A, Terborgh J W, Silman M R, et al. Dominance and distribution of tree species in upper Amazonian Terrra Firme forest[J]. Ecology, 2001, 82(8):2101-2117. [4] 安树青,朱学雷,王峥峰,等.海南五指山热带山地雨林植物物种多样性研究[J].生态学报, 1999, 19(6):803-809. [5] 梁坤南,潘一峰,刘文明.柚木苗期多因素施肥试验[J].林业科学研究, 2005, 18(5):535-540. [6] 刘水娥,张方秋,陈祖旭,等. N、P、K营养元素不同配比对马占相思苗期生长的影响[J].林业科学研究, 2002, 15(2):163-168. [7] 南京农业大学.土壤农化分析[M].北京:农业出版社, 1996:216-219. [8] Vitouseck P. Nutrient cycling and nutrient use efficiency[J]. The American Naturalist, 1982, 119(4):553-572. [9] Herbert D A, Williams M, Rastetter E B. A model analysis of N and P limitation on carbon accumutation in Amazonian secondary forest after alternate land-use abandonment[J]. Biogeochemistry, 2003, 65(1):121-150. [10] Martin J W, Harry G M O V, Evalyne O A M. Nutrient concentrations in mire vegetation as a measure of nutrient limitation in mire ecosystem[J]. Journal of Vegetation Science, 1995, 6:5-16. [11] 陈秀铃.邓恩桉低磷胁迫下生理生态响应机理研究.福州:福建农林大学, 2009. [12] Uddin M B, Mukul S A, Khan M A S, et al. Effects of phosphorous fertilizer on seedlings growth and nodulation capabilities of some popular agroforestry tree species of Bangladesh[J]. Journal of Forestry Research, 2007, 18(4):283-286. [13] Sterner R W, Elser J J. Ecology stoichiometry:the biology of element from molecules to biosphere[M]. Princeton:Princeton University Press, 2002. [14] Elser J J, Fagan W F, Denno R F, et al. Nutritional constraints in terrestrial and freshwater food webs[J]. Nature, 2000, 408:578-580. [15] 常云妮,钟全林,程栋梁,等.尤溪天然米槠林植物碳氮磷的化学计量特征及其分配格局[J].植物资源与环境学报, 2013, 22(3):1-10. [16] 柯立,崔珺,杨佳,等.安微石台亚热带常绿阔叶林植物叶中C、N、P特征分析[J].南京林业大学学报:自然科学版, 2014, 38(6):28-32. [17] 刘兴诏,周国逸,张德强,等.热带森林不同演替阶段植物与土壤中N、P的化学计量特征[J].植物生态学报, 2010, 34(1):64-71. [18] Han W X, Fang J Y, Guo D L, et al. Leaf nitrogen and phosphorus stoichiometry across 753 terrestrial plant species in China[J]. New Phytologist, 2005, 168:377-385. [19] Koerselman W, Meuleman A F M. The vegetation N:P ratio:a new tool to detect the nature of nutrient limitation[J]. Journal of Applied Ecology, 1996, 33:1441-1450. -
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