缓释肥施用量对缅茄容器苗生长及养分含量的影响  

Effects of slow available fertilizer samount on the growth and nutrient content of Afzelia xylocarpa container seedlings

作　　者：邱琼 陈勇 杨德军 刘际梅 钟萍 QIU Qiong;CHEN Yong;YANG Dejun;LIU Jimei;ZHONG Ping(Institute of Tropical Forestry,Yunnan Academy of Forestry and Grassland,Puwen 666102,Yunnan,China)

机构地区：[1]云南省林业和草原科学院热带林业研究所,云南普文666102

出　　处：《湖南林业科技》2020年第2期42-46,共5页Hunan Forestry Science & Technology

基　　金：云南省重点研发项目(2018BB007);西双版纳热带林培育与经营国家长期科研基地运行补助项目(2019132534);云南省技术创新人才培养项目(2011CI069)。

摘　　要：采用随机区组试验设计,研究缓释肥不同施用量对缅茄容器实生苗苗高、地径生长和生物量及养分含量的影响。结果表明:施用缓释肥有利于缅茄容器苗的生长和生物量积累,但施用量不是越多越好。6、12、18 g·株-13种施肥量处理的缅茄容器苗生长都较不施肥的对照好,但以施6 g·株-1的苗木生长最好;施用缓释肥能提高缅茄容器苗根、茎、叶的N、P含量,其中叶片中N、P含量提高最多,其次是根的,茎的提高最少;施缓释肥对提高缅茄容器苗根、茎、叶的K含量影响不大,3种施肥量处理和对照处理的不同器官K含量都表现出叶>茎>根的特点。This study aims to seek the effects of different amount of slow available fertilizers on the growth index,biomass and nutrient accumulation of Afzelia xylocarpa container seedlings by conducting randomized block design experiments.The results showed that proper was amount of slow available fertilizers is beneficial to the growth and biomass accumulation of the container seedlings(i.e.proper fertilization is important,but more fertilizer isn’t means better).The growth of container seedings with fertilization rates of 6 g,12 g and 18 g per plant were better than those without being fertilized,and the best performance of the one fertilized with 6 g slow available fertilizers.The content of N and P in the roots,stems and leaves of A.xylocarpa container seedlings can be increased with application of slow available fertilizers,and the most increase of N and P content in the leaves,followed by roots and then stems.The effects of slow available fertilizers on the content of K were not very obvious.In the three treatments and contrast container seedlings,the effects of fertilization on K showed a trend of leaf>stem>root.

关 键 词：缅茄 缓释肥 施肥量 生长 养分含量 

分 类 号：S795.09[农业科学—林木遗传育种]