| 周 玮1，3，周祥斌2，3，周 鹏3，4，陈晓阳1，3.氮磷钾配方施肥对香椿苗木生长的效应分析[J].广东农业科学,2017,44(4):73-82 |
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氮磷钾配方施肥对香椿苗木生长的效应分析 |
| Effects of NPK fertilization on growth ofToona sinensis seedlings |
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| DOI：10.16768/j.issn.1004-874X.2017.04.012 |
| 中文关键词: 香椿 施肥 三元二次旋转回归组合设计 生长量 |
| 英文关键词: Toona sinensis fertilizer quadratic regression rotation composite design growth |
| 基金项目:广东省林业科技创新专项（2011KJCX002，2012KJCX002，2013KJCX002） |
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| 摘要点击次数: 2488 |
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| 中文摘要: |
| 采用三元二次旋转回归组合设计，建立氮磷钾不同施肥量对香椿苗高、地径和茎干生物量的回
归模型，分析氮磷钾施肥量对苗木生长的效应。结果表明，不同肥料对香椿苗高、地径和茎干生物量的效应
大小表现为施氮量＞施磷量＞施钾量，钾肥对香椿苗木生长的影响不显著。采用10 kg 黄心土盆栽培育香椿
苗，施N 量为4.277 g/ 盆、施P2O5 量为2.450 g/ 盆，苗高生长量最大可达141.96 cm；施N 量为4.845 g/ 盆、
施P2O5 量为2.896 g/ 盆，地径生长量最大可达16.895 mm；施氮量为4.101 g/ 盆、施P2O5 量为2.000 g/ 盆，
茎干生物量最大可达52.529 g。 |
| 英文摘要: |
| The quadratic regression rotation composite design was used to study the effects of nitrogen，
phosphorus and potassium fertilization on the growth of Toona sinensis seedlings. The regression model among NPK
fertilizer amount and the height ground diameter and stem biomass of T. sinensis seedling was established and their
effects on seedling growth were analyzed. The effects of different fertilizers on seedling height，ground diameter
and stem biomass showed N>P>K，and the effect of potassium fertilizer on growth of T. sinensis seedlings was not
significant. When T. sinensis seedling was planted in the pot with 10 kg yellow soil，the seedling height was the
highest with 141.96 cm in the pot with 4.277 g nitrogen and 2.450 g P2O5，the seedling diameter was the widest with
16.895 mm in the pot with 4.845 g nitrogen and 2.896 g P2O5，and the seedling stem biomass was the higest with
52.529 g in the pot with 4.845 g nitrogen and 4.101 g P2O5. |
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