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首页> 外文期刊>Plant and Soil >Influence of nitrogen application rate on the magnitude of root and shoot growth flushes of Viburnum odoratissimum Ker-Gawl.
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Influence of nitrogen application rate on the magnitude of root and shoot growth flushes of Viburnum odoratissimum Ker-Gawl.

机译：施氮量对香荚兰（Viburnum odoratissimum Ker-Gawl）根系和枝条生长潮红程度的影响。

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摘要

Most trees and shrubs have cyclic, rather than continuous shoot and root growth. Growth cycles have important implications with regards to transplant and fertilization timing. Although growth cycles of several woody species have been characterized, no information is available on sweet viburnum (Viburnum odoratissimum). A series of experiments was conducted to study shoot and root growth flushes of sweet viburnum and the influence of nitrogen fertilization on flushes. Plants were grown in observation tubes and kept under greenhouse conditions. Sweet viburnum exhibited alternating periods of root and shoot elongation, and the root elongation peak preceded shoot elongation peak by 6-18 days. Increased nitrogen fertilization rate negatively impacted the magnitude and number of root growth flushes. Further research is needed to determine when maximum nitrogen uptake is occurring, relative to root and shoot growth cycles..
机译：大多数树木和灌木具有周期性，而不是连续的芽和根生长。生长周期对移植和受精时间具有重要意义。尽管已经表征了几种木本植物的生长周期，但是尚无关于甜荚莲（Viburnum odoratissimum）的信息。进行了一系列实验研究甜荚vi的芽和根生长潮红以及氮肥对潮红的影响。使植物在观察管中生长并保持在温室条件下。甜荚vi的根和茎伸长交替出现，根伸长高峰先于芽伸长高峰6-18天。氮肥利用率的提高对根部生长潮红的数量和数量产生负面影响。需要进一步的研究来确定何时发生相对于根和芽生长周期最大的氮吸收。

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