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| Yield and quality of maize stover: Variation among cultivars and effects of N fertilization |
| LIANG Ming-yuan, WANG Gui-yan, LIANG Wei-li, SHI Peng-fei, DANG Jing, SUI Peng, HU Chun-sheng |
1、Faculty of Agronomy, Agricultural University of Hebei, Baoding 071001, P.R.China
2、School of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.China
3、Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences,Shijiazhuang 050021, P.R.China |
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摘要 Biomass yields and concentrations of crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude fiber (CF) were analyzed for five cultivars of summer-sown maize (Zea mays L.) stover grown in field trials at three rates of N fertilization, and sampled immediately after grain harvest. The results revealed differences in yields and concentrations of nutrients according to stalk height and hence harvest portion among the cultivars. N application greatly increased biomass yield and CP, especially in upper stalks and to a lesser extent, EE. Concentrations of NDF and ADF decreased as N rate increased. The results show that stovers from all local popular maize cultivars are suitable as animal fodder and that moderate N application improves feed quality of stover.
Abstract Biomass yields and concentrations of crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude fiber (CF) were analyzed for five cultivars of summer-sown maize (Zea mays L.) stover grown in field trials at three rates of N fertilization, and sampled immediately after grain harvest. The results revealed differences in yields and concentrations of nutrients according to stalk height and hence harvest portion among the cultivars. N application greatly increased biomass yield and CP, especially in upper stalks and to a lesser extent, EE. Concentrations of NDF and ADF decreased as N rate increased. The results show that stovers from all local popular maize cultivars are suitable as animal fodder and that moderate N application improves feed quality of stover.
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Received: 10 March 2015
Accepted: 06 August 2015
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| Fund: The study presented in this paper was financially supported by the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2012BAD14B07-01 and 2012BAD14B07-02). |
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Corresponding Authors:
LIANG Wei-li, Tel: +86-312-7528111,E-mail: lwl@hebau.edu.cn
E-mail: lwl@hebau.edu.cn
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| About author: LIANG Ming-yuan, E-mail: 196497765@qq.com; |
Cite this article:
LIANG Ming-yuan, WANG Gui-yan, LIANG Wei-li, SHI Peng-fei, DANG Jing, SUI Peng, HU Chun-sheng.
2015.
Yield and quality of maize stover: Variation among cultivars and effects of N fertilization. Journal of Integrative Agriculture, 14(8): 1581-1587.
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