摘要
浙江樟(Cinnamomum chekiangense)是重要的珍贵树种,在大力推广珍贵树种造林中,优质容器苗的培育是造林成功的关键,而育苗基质直接决定着苗木质量。本文以浙江樟1年生苗为研究对象,采用盆栽的方法,研究5种不同配比基质(黄泥、锯末、泥炭)对苗木株高、地径、生物量的生长和氮磷钾养分积累的影响,旨在筛选出适合浙江樟容器苗培育的基质配比,为优质容器苗的培育提供基础。结果表明A3(黄心土︰泥炭︰锯末=40︰30︰30)基质最有利于浙江樟的生长,株高和地径均显著高于A5(P<0.05);A3基质培育的浙江樟叶片、枝干、根系和总生物量均为最大,分别为33.63,39.57,48.43,121.64 g·株^(−1),显著高于其他处理(P<0.05);浙江樟全株氮、磷、钾积累量以A3基质为佳,分别为3168.8,137.3,673.1 mg·株^(−1);灰色关联度法评价表明,A3基质是浙江樟容器苗生长的最优基质。
Cinnamomum chekiangense is an important and precious tree species.In vigorously promoting precious tree species for the afforestation,the cultivation of high-quality container seedlings is the key to the success of afforestation,and the seedling substrate directly determines the quality of seedlings.In this paper,1-year-old seedlings of C.chekiangense were selected as the research object,using potted culture method to study the effects of 5 substrates(yellow soil,sawdust,peat)on seedling plant height,ground diameter,biomass growth and accumulation of nitrogen,phosphorus and potassium,in order to screen out the suitable substrate ratio for the cultivation of the container seedlings of the C.chekiangense and provide the basis for the cultivation of high-quality container seedlings.The results showed that A3(yellow soil∶peat∶sawdust=40∶30∶30)substrate was most conducive to the growth of C.chekiangense,and the plant height and ground diameter were significantly higher than A5(P<0.05).The leaves,branches,roots and total biomass of C.chekiangense cultivated with A3 substrate were largest,which were 33.63,39.57,48.43,121.64 g·plant^(−1),respectively;significantly higher than other treatments(P<0.05).The accumulation of nitrogen,phosphorus,and potassium in the whole plant of C.chekiangense cultivated with A3 substrate were the best,which were 3168.8,137.3,673.1 mg·plant^(−1) respectively;Gray correlation analysis method evaluation showed that A3 substrate was the best substrate for the growth of the C.chekiangense container seedlings.
作者
盛卫星
许在恩
徐裕良
周冠
杨建详
吴小盈
SHENG Weixing;XU Zaieng;XU Yuliang;ZHOU Guan;Yang Jianxiang;WU Xiaoying(Jiande Forestry Bureau,Jiande 311600,China)
出处
《四川林业科技》
2021年第4期99-106,共8页
Journal of Sichuan Forestry Science and Technology
关键词
基质配比
植株生长
养分积累
浙江樟
Substrate ratio
Plant growth
Nutrient accumulation
Cinnamomum chekiangense
