Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L.

doi:10.1080/01904167.2016.1189938

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Nitrogen fertilization, irrigation, and harvest times affect biomass and energy value of Helianthus tuberosus L.
	Gao Kai ; Zhu Tie-Xia ; Wang Qi-Bing
刊名	JOURNAL OF PLANT NUTRITION
	2016
卷号	39 期号:13 页码:1906-1914
关键词	Calorific value ash harvest time irrigation nitrogenous fertilizer
ISSN号	0190-4167
DOI	10.1080/01904167.2016.1189938
文献子类	Article
英文摘要	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.
学科主题	Plant Sciences
电子版国际标准刊号	1532-4087
出版地	PHILADELPHIA
WOS关键词	LEAF GAS-EXCHANGE ; YIELD ; FRUCTANS ; GROWTH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000387252900009
资助机构	National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [31201844]
内容类型	期刊论文
源URL	[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.Inner Mongolia Univ Nationalities, XiLaMulun St, Tong Liao, Peoples R China 2.[Gao Kai 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式 GB/T 7714	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.