| 施氮对马铃薯品质指标的影响 |
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| 引用本文： | 焦峰,彭东君,朱本源,翟瑞常.施氮对马铃薯品质指标的影响[J].安徽农业科学,2013(20):8810-8812. |
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| 作者姓名： | 焦峰 彭东君 朱本源 翟瑞常 |
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| 作者单位： | [1]黑龙江八一农垦大学,黑龙江大庆163319 [2]黑龙江省八五三农场,黑龙江双鸭山155631 [3]黑龙江省双峰农场,黑龙江密山158308 |
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| 基金项目： | 黑龙江省科技厅重大项目（GA06C101）;黑龙江省农垦总局重点项目（HNK11A-05-10）;黑龙江八一农垦大学学成、引进人才项目（XDB2013-04）. |
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| 摘 要： | 目的]为了研究不同氮水平下马铃薯块茎品质的动态变化规律。方法]采用田间试验的方法,探讨不同氮水平影响下马铃薯块茎中蛋白质、淀粉和维生素C含量的动态变化规律。结果]播种后63~91 d,不同处理的块茎粗蛋白质含量随施氮水平的增加而增加,之后施氮120 kg/hm2处理下降较快;马铃薯收获时,各处理马铃薯块茎总淀粉含量分别为619.2~669.1 g/kg。结论]过量的氮肥不利于可溶性糖向淀粉的转化;过高的氮肥水平并不利于马铃薯生长后期块茎中淀粉的积累。
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| 关 键 词： | 马铃薯 氮 品质指标 |
Effects of Nitrogen Application on Quality Index of Potato |
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| Institution: | JIAO Feng et al (Heilongjiang Bayi Agricultural University,Daqing,Heilongjiang 163319) |
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| Abstract: | Objective ] The aim was to study the effect of different nitrogen levels on quality of potato. Method ] The effect of different nitrogen application rates on dynamic change law of tuber protein, starch and Vc synthesis of potato was studied in field experiments. Result ] The results showed that protein content of tuber also increased gradually from 63 to 91 days after sowing with the increase of nitrogen amount, and nitrogen 120 kg/hm2 treatment decreased rapidly after that. The potato tuber starch content respectively was 619.2 -669.1 g/kg at harvest. Conclusion] Excessive nitrogenous fertilizer was not conducive to the transformation of soluble sugar to starch. Excessive nitrogenous fertilizer was not condu- cive to the tuber starch accumulation. |
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| Keywords: | Potato Nitrogen Quality index |
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