| 前氮后移对寒地水稻产量和稻米品质的影响 |
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| 引用本文： | 李广宇,彭显龙,刘元英,盛大海,暴勇.前氮后移对寒地水稻产量和稻米品质的影响[J].东北农业大学学报,2009,40(3). |
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| 作者姓名： | 李广宇 彭显龙 刘元英 盛大海 暴勇 |
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| 作者单位： | 1. 东北农业大学资源与环境学院,哈尔滨,150030
2. 建三江分局创业农场,黑龙江,富锦,156100 |
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| 基金项目： | 农业部"948"项目，国家科技部农业科技成果转化资金 |
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| 摘 要： | 采用田间小区试验方法,研究在相同氮肥施用量(100kg·hm-2)条件下,不同穗肥施用时期和比例对水稻产量和品质的影响。结果表明,前氮后移对糙米率、精米率、蛋白质含量和直链淀粉含量等品质指标的影响小,仅使整精米率提高了4.4%~9.9%,不同叶龄期追氮对垩白率影响不尽一致,推迟追肥叶龄期可以降低垩白率。前氮后移处理在提高产量的基础上,没有降低稻米的碾米品质和外观品质,对稻米食味品质影响不明显。
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| 关 键 词： | 水稻 氮肥后移 品质 产量 淀粉黏滞性谱(RVA) |
Effects of applying N at later growth stage on rice yield and quality in cold area of China |
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| LI Guangyu,PENG Xianlong,LIU Yuanying,SHENG Dahai,BAO Yong.Effects of applying N at later growth stage on rice yield and quality in cold area of China[J].Journal of Northeast Agricultural University,2009,40(3). |
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| Authors: | LI Guangyu PENG Xianlong LIU Yuanying SHENG Dahai BAO Yong |
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| Institution: | 1. Resources and Environmental Sciences College;Northeast Agricultural University;Harbin 150030;China;2. Jiansanjiang Sub-bureau Farm;Fujin Heilongjiang 156100;China |
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| Abstract: | The experiment was conducted to study the effects of applying N at later growth stage on rice quality and yield under the condition of applying the same amount of N (100 kg·hm-2) using field plot method. The results showed that the effects of application N at later growth stage on brown rice rate, milled rice rate, protein content, amylose content and other quality indexes were all unobvious, and only the head rice raised 4.4%-9.9%. There were different effects on chalkiness of rice by top-fertilization at different maturity degree of young plants, the chalkiness of rice could be lower if top-fertilization at the maturity degree of young plants was put off. In a word, there were no effects of applying N at later growth stage on rice milling quality and surface quality, and the influence of applying N at later growth stage on the quality of taste was not obvious. |
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| Keywords: | rice applying N at later growth stage quality yield RVA |
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