张卫华,张方秋,潘文,朱报著,刘德浩,闫菁.厚荚相思苗期养分需求特性的研究[J].广东农业科学,2013,40(24):46-50 |
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厚荚相思苗期养分需求特性的研究 |
Study on nutrient requirement of Acacia crassicarpa seedlings |
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DOI: |
中文关键词: 厚荚相思 家系 养分需求量 |
英文关键词: Acacia crassicarpa family nutrition requirement |
基金项目:“十二五”农村领域国家科技计划项目(2012BAD01B04);广东省教育部产学研结合项目(2009B090300294) |
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中文摘要: |
对厚荚相思15个家系幼苗的N、P、K、Ca、Mg、S、Fe、Cu、Zn、Mn等10种营养元素养分含量进行测定,结果表明不同家系各养分需求量之间存在极显著差异,其中差异最显著的四大元素为N、K、Ca、S;各家系养分需求总量排序为12>21>35>18>1>16>11>13>15>9>22>10>4>8>2;器官间养分需求存在极显著差异,养分需求排序为茎>叶>根曰厚荚相思苗期养分需求比列为N:K:Ca:S:Fe:P:Mg:Zn:Mn:Cu越1469:991:474:239:146:121:94:1:7:7.2。 |
英文摘要: |
This paper measured 10 kinds of nutrion elements including N, P, K, Ca, Mg, S, Fe, Cu, Zn, Mn from 15 families of Acacia crassicarpa, the results showed that there was a significant difference in the nutrient requirement of different families, and the most significant difference appeared among the four elements of N, K, Ca, S; The nutrient requirement of arder the 15 families was 12>21>35>18>1>16>11>13>15>9>22>10>4>8>2; The total nutrient requirement order in organs was stem> leaf> root. In the end, we gained the proportion of nutrient requirement which was N:K:Ca:S:Fe:
P:Mg:Zn:Mn:Cu=1469:991:474:239:146:121:94:1:7:7.2. |
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