| 不同种类氮素对苋菜硝酸盐积累及分配的影响 |
| |
| 引用本文： | 廖鸿昕,张乐平,刘煜,刘德林. 不同种类氮素对苋菜硝酸盐积累及分配的影响[J]. 激光生物学报, 2011, 20(4): 501-505. DOI: 10.3969/j.issn.1007-7146.2011.04.014 |
| |
| 作者姓名： | 廖鸿昕 张乐平 刘煜 刘德林 |
| |
| 作者单位： | 1. 湖南农业大学生物科学与技术学院,湖南长沙,410128
2. 湖南省原子能农业应用研究所,湖南长沙,410125 |
| |
| 基金项目： | 农业部公益性行业专项“核技术农业应用”(20083034) |
| |
| 摘 要： | 应用15N核素示踪技术,研究了不同氮肥种类对苋菜硝酸盐积累与分配的关系及氮素的去向。结果表明:（1）苋菜可食部分中茎较叶更易富集硝酸盐,茎中硝酸盐含量为叶中的1.5倍左右,施用硝态氮肥苋菜叶与茎中的硝酸盐含量都偏高。（2）苋菜硝酸盐主要来源于土壤,达到80%以上,而来自肥料部分不足20%。（3）苋菜施用尿素其肥料利用率达到46.27%,土壤残留氮素达到17.01%,均高于硫铵与硝酸钠,尿素损失率为40.32%,远低于硫铵与硝酸钠,表明施用尿素有利于土壤氮素储量的保持和提高。
|
| 关 键 词： | 15N核素示踪 不同种类氮素 硝酸盐 氮素分配 |
Effect of Different Kinds of Nitrogen on Nitrate Accumulation and Distribution of Amaranth |
| |
| LIAO Hongxin,ZHANG Leping,LIU Yu,LIU Delin. Effect of Different Kinds of Nitrogen on Nitrate Accumulation and Distribution of Amaranth[J]. ACTA Laser Biology Sinica, 2011, 20(4): 501-505. DOI: 10.3969/j.issn.1007-7146.2011.04.014 |
| |
| Authors: | LIAO Hongxin ZHANG Leping LIU Yu LIU Delin |
| |
| Affiliation: | LIAO Hongxin~1,ZHANG Leping~2,LIU Yu~2,LIU Delin~(2*) (1.College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha 410128,Hunan,China,2.Hunan Institute of Atomic Energy Appliculture in Agricultural,Changsha 410125,China) |
| |
| Abstract: | By the application of ~(15)N tracer technique,we studied studies the influence of different fertilizers related to the accumulation and distribution of amaranth nitrate and the destination of nitrogen.It shows that:Firstly,amaranth stem has more nitrate contents than those of leaf among the edible parts.The nitrate contents in the stem are 1.5 times as much as those of the leaf.Therefore,if fertilizing nitric nitrogen fertilizer,the contents of nitrate in leaf and stem are both a little high.Secondly,more t... |
| |
| Keywords: | ~(15)N nuclide tracer different kinds of nitrogen nitrate distribution of nitrogen |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
