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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (28): 53-56.doi: 10.11924/j.issn.1000-6850.2014-0919

所属专题： 园艺

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缺素对广宁红花油茶幼苗生长的影响

蔡坚,丁晓纲,张应中,刘喻娟,李永泉,朱雯,张祥宇   

  1. 广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,,广东省林业科学研究院,广东省林业科学研究院
  • 收稿日期:2014-04-01 修回日期:2014-04-01 接受日期:2014-07-01 出版日期:2014-10-15 发布日期:2014-10-15
  • 通讯作者: 朱雯
  • 基金资助:
    国家林业公益性行业科研专项重大项目“黎蒴等华南重要乡土树种良种选育研究”( 201204303)；广东省林业科技创新专项资金项目“油茶 良种选育、无公害栽培技术研究与示范”(2013KJCX009-01)；广东省林业科技创新专项资金项目“油茶、八角等良种选育及高效栽培技术研究与示范” (2009KJCX009-03)

Effects of Nutrient Deficiencies on the Growth of Camellia semiserrata Chi. Seedlings

  • Received:2014-04-01 Revised:2014-04-01 Accepted:2014-07-01 Online:2014-10-15 Published:2014-10-15

摘要： 试验设置全素(control)、缺氮(-N)、缺磷(-P)、缺钾(-K)、缺钙(-Ca)、缺镁(-Mg)、缺硫(-S)7 个处理，对广州红花油茶幼苗进行缺素施肥试验，通过测定苗高、地径、叶面积以及叶周长等指标，探究不同缺素处理对广宁红花油茶苗期生长的影响。结果表明：（1）-N处理对广宁红花油茶幼苗苗高和地径影响最大，表现为抑制作用；（2）各缺素处理对广宁红花油茶苗高影响顺序为：-N＞-Ca＞-K＞-Mg＞-S＞-P，对地径影响大小顺序为：-N＞-S＞-Ca＞-Mg＞-P＞-K；（3）缺素处理对幼苗叶片影响并不显著。

关键词: 需水规律, 需水规律

Abstract: An nutrient deficiencies fertilization experiment was conducted with seven treatments (control treatment, N, P, K, Ca, Mg and S deficient treatments). Growth indices (seedling height, ground diameter, leaf area and leaf perimeter) were measured to study the effects of different nutrient deficiency on the growth of Camellia semiserrata Chi. seedlings. It was indicated that: (1) N deficient treatment had the greatest inhibitory effect on seedling height and ground diameter; (2) sequence of the influence of nutrient deficiency on seedling height was: -N＞-Ca＞-K＞-Mg＞-S＞-P, and sequence of the influence of nutrient deficiency on ground diameter was: -N＞-S＞-Ca＞-Mg＞-P＞-K; (3) nutrient deficiencies had no significant effect on leaf growth.