不同基质2年生楠木容器苗生长特征

doi:10.14088/j.cnki.issn0439-8114.2021.24.030

湖北农业科学 ›› 2021, Vol. 60 ›› Issue (24): 124-129.doi: 10.14088/j.cnki.issn0439-8114.2021.24.030

不同基质2年生楠木容器苗生长特征

杨杰峰¹, 罗海兵², 汪洋¹, 胡剑民³, 徐晓婷¹

1.湖北生态工程职业技术学院,武汉 430200;
2.随县林业局,湖北随县 431500;
3.麻城市职业技术教育集团,湖北麻城 438300

收稿日期:2021-07-29 出版日期:2021-12-25 发布日期:2022-01-04
通讯作者: 徐晓婷（1982-）,女,湖北通山人,讲师,主要从事园林技术方向研究,（电话）13554304050（电子信箱）576025646@qq.com。
作者简介:杨杰峰（1982-）,男,湖北武汉人,副教授,硕士,主要从事园林和生态研究,（电话）13971058515（电子信箱）24510329@qq.com;
基金资助:
湖北省教育厅计划指导项目（B 2018481）; 中德技术合作林业重点科研项目（ZDJSHZ202001）

The growth characteristics of 2-year-old container seedlings of Phoebe zhennan cultured in different substrate formulas

YANG Jie-feng¹, LUO Hai-bing², WANG Yang¹, HU Jian-min³, XU Xiao-ting¹

1. Hubei Ecology Polytechnic College,Wuhan 430200,China;
2. Suixian Forestry Bureau,Suixian 431500,Hubei,China;
3. Macheng Vocational and Technical Education Group,Macheng 438300,Hubei,China

Received:2021-07-29 Online:2021-12-25 Published:2022-01-04

摘要/Abstract

摘要： 为优化楠木（Phoebe zhennan）2年生容器育苗技术,选择黄心土、河沙、蛭石和腐熟锯末作为基质配料,采用单因素随机区组设计,设计3个不同基质处理,对楠木容器苗地径和苗高的生长量进行调查。利用Logistic、Chanter函数、指数函数和单分子函数,拟合不同基质容器苗生长模型。应用CRITIC赋权法确定苗木生长和分级等参数的权重,建立2年生楠木容器苗评价指数。结果表明,地径和苗高在不同基质中与对照均存在显著差异。不同基质中2年生楠木容器苗地径和苗高生长均呈多次“快-慢-快-慢”的生长节奏。地径和苗高与苗期生长时间的变化节律基本一致;Logistic数学模型对2年生楠木容器苗生长动态规律拟合效果最佳。苗高地径比和I级苗合格率是苗木或基质配方评价的关键因子。30%河沙+70%黄心土是低投入、高产出的楠木容器育苗基质配方。

关键词: 楠木（Phoebe zhennan）, 基质配方, 容器育苗, 生长特征

Abstract: To optimize the 2-year-old container seedling process of Phoebe zhennan, yellow topsoil, river sand, vermiculite and rotten sawdust were selected as the substrate ingredients, and three different substrate treatments were designed by single factor randomized block design to survey the growth of basal diameter and seedling height of Phoebe zhennan container seedlings. Logistic equation, chanter equation, exponential equation and single molecule equation were used to fit the growth model of container seedlings cultured in different substrates. Critical weighting method was used to determine the weights of seedling growth and grading parameters and the evaluation indexes of container seedlings of Phoebe zhennan was established. The results showed that there were significant differences in basal diameter and seedling height between different substrate formulas and the CK; The growth tendency of basal diameter and seedling height of 2-year-old Phoebe zhennan container seedlings in different substrate formulas was multiple “fast-slow-fast-slow” in the growing process. The change trend of basal diameter and seedling height was basically consistent with the growth time at the seedling stage; Logistic model had the optimal goodness-of-fit on the growth dynamics of 2-year-old container seedlings of Phoebe zhennan. The ratio of height to diameterand and the qualified rate of grade I seedlings were the key factors for the evaluation of seedling or substrate formulas. The formula of 30% river sand + 70% loess was a low input and high output substrate formula for container seedling of Phoebe zhennan.

Key words: Phoebe zhennan, substrate formula, seedlings cultured in containers, growth characteristics

中图分类号:

S723.1⁺33

杨杰峰, 罗海兵, 汪洋, 胡剑民, 徐晓婷. 不同基质2年生楠木容器苗生长特征[J]. 湖北农业科学, 2021, 60(24): 124-129.

YANG Jie-feng, LUO Hai-bing, WANG Yang, HU Jian-min, XU Xiao-ting. The growth characteristics of 2-year-old container seedlings of Phoebe zhennan cultured in different substrate formulas[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(24): 124-129.

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不同基质2年生楠木容器苗生长特征

The growth characteristics of 2-year-old container seedlings of Phoebe zhennan cultured in different substrate formulas

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