Effects of Nitrogen Levels and Split Application Ratio on Growth and Yield in Liriope platyphylla WANG et TANG
Effects of Nitrogen Levels and Split Application Ratio on Growth and Yield in Liriope platyphylla WANG et TANG
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施氮水平和分次施用比例对白叶麦冬生长和产量的影响
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Jin
中科院分区：
文献类型：
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作者：
J. Seong;Ki;Y. Kwack;Sung;Jin
为探讨合适的施氮方法，对白叶麦冬进行了六种氮肥水平和五种不同分次施用的试验。随着施氮量从0公斤/公顷增加到360公斤，叶长和植株全氮含量增加。块茎的数量和重量随着施氮量的增加而增加，当施氮量为220kg时，块茎产量达到最高水平，为4.44M/T/ha。然后，随着额外氮肥的添加至每公顷360公斤的水平，块茎产量下降。在适当分施氮肥的研究中，40%基施和3次追肥的组合比100%基肥的块茎产量（3.52M/T/ha）提高了18%。
To investigate proper method of nitrogen application, six levels of nitrogen fertilizer and five different split applications were tested in Liriope platyphylla. Leaf length and content of total nitrogen in plant increased with the increase of nitrogen application level from zero to 360kg per ha. Number and weight of tuber increased with the increase of nitrogen level and tuber production reached to highest level of 4.44M/T per ha with the level of 220kg nitrogen. And then, tuber production decreased with the addition of extra nitrogen fertilizer to level of 360kg per ha. In the research of proper nitrogen split application, tuber yield (3.52M/T per ha) was increased by 18% at the combination of 40% basal application and three times of top dressing, than that of 100% basal application.