【摘要】 2000~2002年在云南省红河州屏边县对北美红杉幼林进行了不同肥料(尿素、过磷酸钙、氯化钾)的施肥试验(共进行了8个处理,3次重复的随机区组设计)。结果表明:施肥使北美红杉幼林生物量增加,其中处理7(P2K2)能明显增加北美红杉幼林各器官及林木总的生物量;施肥能促进根和叶的生长,增加根系对磷的吸收,提高北美红杉幼林叶和根部磷的含量及贮量;叶和根部成为北美红杉磷素的主要贮存库。更多还原

【Abstract】 During 2000~2002,the fertilizations tests,including three kinds of fertilizations(urea,super phosphate,potassium chloride) to young plantation of Sequoia sempervirens in Pingbian,Yunnan province were conducted.The tests include eight treatments and three replicates.The results revealed that fertilizations could increase the biomass of different components of the tree,especially the proportioned application of super phosphate and potassium chloride(the seventh treatment) could increase the amount of leaf and root as well as the total biomass of the three remarkably.Fertilizations could also increase the P content and storage in leaf and root.And leaf and root is the major P pool of S.sempervirens.更多还原