| 摘要: |
| 为提高造林前的苗木质量，以杉木 (Cunninghamia lanceolata) 第 3 代种子园轻型基质容器苗
为研究对象，采用 6 种不同大量元素水溶肥处理，包含 2 种常规施肥和 3 种指数施肥，其中常规施肥包
含等量施肥（C60）和 1 次性施肥（H60），指数施肥包含 3 个处理（即 30 mg/ 株 , E30、60 mg/ 株 , E60、
120 mg/ 株 , E120），另设对照（CK）。每种施肥处理供试苗木 300 株，每间隔 2 周施肥一次，总施肥 10
次。分别在施肥期间的第 10 周、第 20 周和第 38 周（造林前 1 天）取苗木测定苗木苗高、地径和生物
量，分析杉木容器苗生长和生物量变化动态。研究结果表明：相对对照处理，各种施肥均显著促进了杉
木容器苗的苗高、地径和生物量。综合生产成本和对环境的影响以指数施肥 60 mg/ 株 , E60 处理为最佳 ,
该处理下 9 个月生杉木容器苗的苗高、地径和生物量分别为 30.39 cm、5.37 mm 和 4.95 g，与对照（CK）
相比增长了 23.84%、40.58% 和 55.66%。 |
| 关键词: 杉木 容器苗 指数施肥 生物量 苗木生长 |
| DOI： |
| 分类号: |
| 基金项目:福建省科技厅对外国际合作项目“杉木和闽楠苗木P养分高效承载技术研发与示范”(2017I0001)；三明市林业科技项目：“基于杉木三代容器苗精准施肥及造林适应性技术研究”(明林计财[2019]2号)；三明市科技计划项目“高世代杉木容器苗指数施肥养分承载技术及造林适应性研究”(项目编号：2018－Ｎ－3) ；杉木第三代种子园主要虫害防控技术研究(2015R1011-6)。 |
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| Effects of Exponential Fertilization on the Growth of Seed Container Seedlings in the Third Generation Seed Orchard of Cunninghamia lanceolata |
|
ＭＥＮＱＩＮＹＩＮ
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Fujian province Shaxian County Guangzhuang state-owned forest farm
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| Abstract: |
| In order to improve the quality of seedlings before afforestation，the light matrix container
seedlings of the third generation seed orchard of Cunninghamia lanceolata were studied，six kinds of watersoluble fertilizers with different large amounts of elements were used，including two kinds of conventional
fertilization and three kinds of index fertilization. The conventional fertilization included equal amount
fertilization (C60) and one-time fertilization (H60)，exponential fertilization includes three treatments (That is 30
mg/plant，E30、60 mg/plan，E60、120 mg/plan，E120)，another control (CK). 300 seedlings were tested for
each fertilizer. Fertilizer was applied at every 2 weeksand was totally conducted 10 times. Seedling height, basal
diameter and biomass was measured at 10， 20 and 38 weeks (one day before afforestation) during fertilization.
The results show that: relative control treatment，all kinds of fertilization significantly promoted the seedling
height, ground diameter and biomass of container seedlings of C. lanceolata. Considering the overall production
cost and environmental impact，exponential fertilization for E60 has best performance， the height, diameter and
biomass of container seedlings of 9-month-old Chinese fir were 30.39 cm， 5.37 mm and 4.95 g，respectively which increased by 23.84%，40.58% and 55.66% compared with CK。 |
| Key words: Cunninghamia lanceolata container seedling exponential fertilization biomass seedling growth |
