| 纯化腐植酸对低氮胁迫下黄瓜幼苗生长及养分吸收的影响 |
| |
| 引用本文： | 谷端银,王秀峰,杨凤娟,焦娟,魏珉,史庆华.纯化腐植酸对低氮胁迫下黄瓜幼苗生长及养分吸收的影响[J].生态学杂志,2016,27(8):2535-2542. |
| |
| 作者姓名： | 谷端银 王秀峰 杨凤娟 焦娟 魏珉 史庆华 |
| |
| 作者单位： | 1.山东农业大学园艺科学与工程学院, 山东泰安 271018;;2.作物生物学国家重点实验室, 山东泰安 271018;;3.农业部黄淮海设施农业工程科学观测实验站, 山东泰安 271018;;4.山东省泰安市农业科学研究院, 山东泰安 271000 |
| |
| 基金项目： | 本文由国家现代农业产业技术体系建设专项(CARS-25)资助 |
| |
| 摘 要： | 以黄瓜‘新泰密刺’、‘津优1号’为供试品种,研究沙培条件下不同浓度(0、50、100、150、200 mg·L-1)纯化腐植酸(PHA)浇灌对低氮胁迫(1 mmol·L-1 NO3-)下黄瓜幼苗生长及养分吸收的影响.结果表明: 在较低N供应条件下,沙培浇灌PHA可显著增加黄瓜幼苗的根总长、根表面积及根尖数,增大根体积,促进黄瓜幼苗株高和茎粗生长,增大叶面积;显著提高黄瓜幼苗叶片中脯氨酸及可溶性糖含量;促进N素以及P、K、Ca、Mg、Fe元素的吸收.由参试两黄瓜品种对低氮胁迫下PHA处理响应效果来看,不同品种的某些性状对PHA处理浓度的敏感程度稍有差异,综合结果显示,施用100～150 mg·L-1PHA可显著促进两品种幼苗生长及养分吸收.
|
| 关 键 词： | 纯化腐植酸 低氮胁迫 黄瓜 生长 养分吸收 |
| 收稿时间： | 2016-02-23 |
Effects of purified humic acid on growth and nutrient absorption of cucumber (Cucumis sativus)seedlings under low nitrogen stress. |
| |
| GU Duan-yin,WANG Xiu-feng,YANG Feng-juan,JIAO Juan,WEI Min,SHI Qing-hua.Effects of purified humic acid on growth and nutrient absorption of cucumber (Cucumis sativus)seedlings under low nitrogen stress.[J].Chinese Journal of Ecology,2016,27(8):2535-2542. |
| |
| Authors: | GU Duan-yin WANG Xiu-feng YANG Feng-juan JIAO Juan WEI Min SHI Qing-hua |
| |
| Institution: | 1.College of Horticulture Science and Enginee-ring, Shandong Agricultural University, Tai’an 271018, Shandong, China;;2.State Key Laboratory of Crop Biology, Tai’an 271018, Shandong, China;;3.Scientific Observing and Experimental Station of Environment Controlled Agricultural Engineering in Huang-Huai-Hai Region, Ministry of Agriculture, Tai’an 271018, Shandong, China;;4.Tai’an Academy of Agricultural Sciences, Tai’an 271000, Shandong, China |
| |
| Abstract: | Taking ‘Xintaimici’ and ‘Jinyou 1’ as experimental cucumber cultivars, this paper studied the effects of watering purified humic acid (PHA) at different levels (0, 50, 100, 150, 200 mg·L-1) on growth and nutrient absorption of cucumber seedlings under low nitrogen stress (1 mmol·L-1 NO3-) in sand culture pots. The results showed that, under low N condition, PHA could significantly increase the total root length, root surface area, root tip number and root volume of cucumber seedlings, and promote plant height, stem diameter and leaf area. Proline and soluble sugar contents in cucumber leaves were significantly increased by PHA. The absorption of N, P, K, Ca, Mg, Fe in cucumber seedlings was promoted. According to the response of the two cucumber cultivars to PHA under low N stress, some traits of two cultivars showed different sensitivity to PHA level. The comprehensive analysis of the above results inferred that the PHA level from 100 mg·L-1 to 150 mg·L-1 could significantly enhance the growth and nutrient absorption of cucumber seedlings. |
| |
| Keywords: | purified humic acid low nitrogen stress cucumber growth nutrient absorption |
|
| 点击此处可从《生态学杂志》浏览原始摘要信息 |
| 点击此处可从《生态学杂志》下载免费的PDF全文 |
|
