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[1]刘鑫铭 荣海 吴承祯** 洪伟 林勇明 李键**.模拟氮沉降对温郁金养分吸收及生长的影响*[J].应用与环境生物学报,2019,25(05):1-12.[doi:10.19675/j.cnki.1006-687x.2018.12033]
 LIU Xinming,RONG Hai,WU Chengzhen**,et al.Effects of simulated nitrogen deposition on nutrients absorption and growth of Curcuma wenyujin Y. H. Chen et. C. Ling[J].Chinese Journal of Applied & Environmental Biology,2019,25(05):1-12.[doi:10.19675/j.cnki.1006-687x.2018.12033]
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模拟氮沉降对温郁金养分吸收及生长的影响*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年05期
页码:
1-12
栏目:
研究论文
出版日期:
2019-10-31

文章信息/Info

Title:
Effects of simulated nitrogen deposition on nutrients absorption and growth of Curcuma wenyujin Y. H. Chen et. C. Ling
作者:
刘鑫铭1 荣海3 吴承祯2** 洪伟1 林勇明1 李键1**
1福建农林大学林学院 福州 350002
2武夷学院生态与资源工程学院 南平 354300
3陕西化龙山国家级自然保护区管理局 安康 725000
Author(s):
LIU Xinming1 RONG Hai3 WU Chengzhen2** HONG Wei1 LIN Yongming1 & LI Jian1**
1 College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China
2 College of Ecology and Resource Engineering, Wuyi University, Nanping 354300, China
3 Shanxi Hualongshan National Nature Reserve Administration, Ankang 725000, China
关键词:
氮沉降生物量光合作用养分温郁金
Keywords:
nitrogen deposition biomass photosynthesis nutrition Curcuma wenyujin Y. H. Chen et. C. Ling
DOI:
10.19675/j.cnki.1006-687x.2018.12033
摘要:
为了解不同程度的氮沉降对温郁金养分吸收及生长的影响,通过向道地中药材温郁金(Curcuma wenyujin Y. H. Chen et. C. Ling)施加N 0 kg hm-2 a-1(CK)、50 kg hm-2 a-1(T50)、100 kg hm-2 a-1(T100)、150 kg hm-2 a-1(T150)4个浓度梯度的NH4NO3模拟氮沉降,取样测定温郁金的养分含量、生长指标、光合指标等。结果表明:(1)模拟氮沉降对温郁金总氮含量、各部位氮磷钾含量和分配以及N/K比值无影响,8、9、12月氮沉降处理的磷含量显著(P < 0.05)低于CK,7、8月T100和T150处理的钾含量显著(P < 0.05)高于CK,T100和T150处理能够增大N/P比值降低P/K比值;(2)8、9、10月氮沉降对温郁金地上部分生长和毛根数量具有显著(P < 0.05)促进作用,对主根茎无影响,7、8、9月氮沉降使叶绿素a和胡萝卜素含量显著(P < 0.05)降低;氮沉降对温郁金的叶绿素b含量和气孔导度(Gs)无影响,但能够显著(P < 0.05)增大光合面积和净光合速率(Pn);氮沉降能够显著(P < 0.05)促进温郁金地上生物量的增长,在9、10月能够显著(P < 0.05)促进温郁金地下和全株生物量的增长,对地上与地下生物量的比值、药材产量以及药用成分无影响。综合看来氮沉降对温郁金营养元素吸收有一定的影响,能够促进植株生长,实验结果能够为亚热带氮沉降加重环境下温郁金田间施肥管理和扩大温郁金在轻度酸雨区的栽培面积提供数据参考。(图7 表 2 参 44)
Abstract:
In order to understand the effects of different degrees of nitrogen deposition on nutrient uptake and growth of Curcuma wenyujin, nitrogen deposition was simulated by applying NH4NO3 with four gradients [N, 0 kg hm-2 a-1 ( CK), 50 kg hm-2 a-1 ( T50), 100 kg hm-2 a-1 (T 100) and 150 kg hm-2 a-1 (T 150)] to Curcuma wenyujin Y. H. Chen et. C. Ling, which is a authentic Chinese herbal medicine. The nutrient content, growth index and photosynthetic index of Curcuma wenyujin were measured after sampling. The results showed that: 1) Simulated nitrogen deposition had no effect on the total N content, the content and distribution of N, P and K in various parts, and the N/K ratio of Curcuma wenyujin. In August, September and December, the P content of nitrogen deposition treatment was significantly ( P < 0.05) lower than CK. In July and August, the K content of T100 and T150 treatment was significantly ( P < 0.05) higher than CK. T100 and T150 treatment increased the N/P ratio and reduce the P/K ratio. 2) In August, September and October, nitrogen deposition significantly ( P < 0.05) promoted the growth of above-ground part and root number of Curcuma wenyujin, and had no effect on the main rhizome. In July, August and September, nitrogen deposition significantly (P < 0.05) reduced the content of chloropoyll a and carotene. Nitrogen deposition had no effect on chloropoyll b content and stomatal conductance (Gs), but significantly (P < 0.05) increased photosynthetic area and net photosynthetic rate (Pn). Nitrogen deposition significantly (P < 0.05) promoted the growth of above-ground biomass of Curcuma wenyujin. In September and October, nitrogen deposition significantly (P < 0.05) promoted the growth of underground and whole plant biomass of Curcuma wenyujin, and had no effect on the ratio of above-ground biomass to underground biomass, medicinal yield and medicinal components. In general, nitrogen deposition has a certain effect on nutrients uptake and could promote plant growth in Curcuma wenyujin. The experimental results can provide data reference for field fertilization management and expanding the cultivation area of Curcuma wenyujin in the mild acid rain area under the environment where subtropical nitrogen deposition aggravated.

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备注/Memo

备注/Memo:
收稿日期 Received: 2018-12-15 接受日期 Accepted: 2019-03-10
*国家自然科学基金项目(31400533)、福建省自然科学基金项目(2014J01074)、福建农林大学科技创新专项基金项目(CXZX2016055、CXZX2018122)和福建农林大学林学院林学高峰学科优秀博硕士培养工程(71201800781)资助
**通讯作者 Corresponding authors (fjwcz@126.com; E-mail: hmilycau@163.com)
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更新日期/Last Update: 2019-03-13