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Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L.
Gao Kai; Zhu Tie-Xia; Wang Qi-Bing
2016
发表期刊JOURNAL OF PLANT NUTRITION
ISSN0190-4167
卷号39期号:13页码:1906-1914
摘要This study aimed to determine the effects of delayed harvest, irrigation and nitrogen fertilization on yield and fuel quality of the Jerusalem artichoke (JA) (Helianthus tuberosus L.). The biomass, calorific value, ash content and total calories per hectare of the Jerusalem artichoke were assessed in Inner Mongolia, China, at various harvest times, after irrigation and nitrogen application. The results showed that fresh and dry weights of tubers and underground biomass were higher when harvested after freezing; the dry yields of leaves and stems decreased with harvest time. In addition, irrigation significantly enhanced the yields of underground biomass, aboveground biomass and tubers, compared with non-irrigation conditions (p < 0.05). Interestingly, the highest yield was obtained with irrigation and treatment with nitrogenous fertilizers (20 to 50 kg ha(-1)). The calorific values of tubers and roots were significantly higher for samples harvested after freezing (p < 0.05); the calorific values of leaves and stems significantly decreased with harvest time and without irrigation (p < 0.05). The calorific values of stems and leaves were higher than those of tubers and roots, when JA was harvested before freezing, and the opposite trend was obtained for harvest done after freezing. The highest calories per hectare was obtained in WN2 (585247.42 MJ ha(-1)) on 30 September 2010 harvest. No correlation was found between the effects of water or nitrogenous fertilizers and ash content. However, the ash contents of stems, leafs, tubers and roots were significantly decreased (p < 0.05) with harvest time. Finally, in all treatment conditions, leaves produced the highest ash amounts among all plant parts, including stems, tubers, leaves and roots.
关键词Calorific value ash harvest time irrigation nitrogenous fertilizer
学科领域Plant Sciences
DOI10.1080/01904167.2016.1189938
收录类别SCI
语种英语
WOS关键词LEAF GAS-EXCHANGE ; YIELD ; FRUCTANS ; GROWTH
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000387252900009
出版者TAYLOR & FRANCIS INC
文献子类Article
出版地PHILADELPHIA
EISSN1532-4087
资助机构National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [31201844]
作者邮箱gaokai555@126.com
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/25214
专题植被与环境变化国家重点实验室
作者单位1.[Gao Kai
2.Inner Mongolia Univ Nationalities, XiLaMulun St, Tong Liao, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
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Gao Kai,Zhu Tie-Xia,Wang Qi-Bing. Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L.[J]. JOURNAL OF PLANT NUTRITION,2016,39(13):1906-1914.
APA Gao Kai,Zhu Tie-Xia,&Wang Qi-Bing.(2016).Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L..JOURNAL OF PLANT NUTRITION,39(13),1906-1914.
MLA Gao Kai,et al."Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L.".JOURNAL OF PLANT NUTRITION 39.13(2016):1906-1914.
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