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林业资源管理 ›› 2023, Vol. 0 ›› Issue (1): 94-103.doi: 10.13466/j.cnki.lyzygl.2023.01.012

• 科学研究 • 上一篇    下一篇

不同施肥措施对美国木豆树苗木生长特性的影响

李志(), 周慧娜, 王言歌, 刘震, 王艳梅, 李明婉, 毕会涛()   

  1. 河南农业大学 林学院,河南 郑州 450002
  • 收稿日期:2022-10-26 修回日期:2023-02-18 出版日期:2023-02-28 发布日期:2023-05-05
  • 通讯作者: 毕会涛(1970-),男,河南汝州人,硕士生导师,博士,主要研究方向为森林培育、经济林栽培与利用。Email:bihuitao@126.com
  • 作者简介:李志(1987-),男,河南方城人,硕士生导师,讲师,主要研究方向为林木养分循环、经济林栽培与林产品利用。Email:lizhi876@163.com
  • 基金资助:
    国家林业局948项目“美国木豆树资源及栽培技术引进”(2015-4-04)

Effects of Different Fertilization Measures on the Growth Characteristics of Catalpa bignonioides

LI Zhi(), ZHOU Huina, WANG Yange, LIU Zhen, WANG Yanmei, LI Mingwan, BI Huitao()   

  1. College of Forestry,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2022-10-26 Revised:2023-02-18 Online:2023-02-28 Published:2023-05-05

摘要:

研究不同施肥措施对美国木豆树苗木生长特性影响,为木豆树苗木肥料供应提供理论依据。以长势良好且均匀的3个月生美国木豆树幼苗为材料,采用部分“3414”方案设计试验,氮、磷、钾等3种无机肥配以生物炭有机肥,共8个处理,设置3种施肥措施:不同水平氮磷钾肥配置,不同氮磷钾肥缺失和生物炭肥添加,对美国木豆树苗木地径、株高、冠幅和叶绿素含量(SPAD值)变化进行分析。结果表明:相比于磷、钾元素,美国木豆树更加需要氮肥的调控;合理的肥料搭配施用能够很好地促进美国木豆树苗木的生长发育,施肥量氮、磷、钾配比为8,4,6g/株,可以作为美国木豆树苗木栽培的一种养分供给方案。

关键词: 肥料, 生物炭肥, 美国木豆树, 生长指标, 叶绿素含量

Abstract:

The effects of different fertilization measures on the growth characteristics of Catalpa bignonioides seedlings were studied to provide theoretical basis for fertilizer supply of Catalpa bignonioides seedlings.Three month old Catalpa bignonioides seedlings with good and even growth were used as materials,part of "3414" scheme was used to design test:three kinds of inorganic fertilizers,including N,P and K,were combined with biochar organic fertilizer,with a total of 8 treatments and 3 fertilization measures:indifferent levels of N,P and K,deficiency of different N,P and K fertilizers and biochar addition,the changes of growth indexes and chlorophyll content(SPAD value) of Catalpa bignonioides seedlings were analyzed.The results showed that:compared with P and k elements,Catalpa bignonioides needed more nitrogen regulation.Reasonable fertilization could promote the growth and development of Catalpa bignonioides seedlings.The fertilization ratio of N,P and K is 8g/plant,4g/plant and 6g/plant,can be used as a nutrient supply plan for the cultivation of Catalpa bignonioides seedlings.

Key words: fertilizers, biochar fertilizer, Catalpa bignonioides, growth index, chlorophyll content

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