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草业学报 ›› 2011, Vol. 20 ›› Issue (5): 223-230.

• 研究论文 • 上一篇    下一篇

氮素对兰州百合产量、养分累积和品质的影响

林玉红,罗俊杰*   

  1. 甘肃省农业科学院生物技术研究所,甘肃 兰州730070
  • 出版日期:2011-10-20 发布日期:2011-10-20
  • 通讯作者: E-mail:342414104@qq.com
  • 作者简介:林玉红(1964-),女,山东文登人,副研究员,大学本科。
  • 基金资助:
    兰州市科技计划项目(2009-1-170)资助。

Effects of nitrogen on yield, nutrient accumulation and quality of Lanzhou lily

LIN Yu-hong, LUO Jun-jie   

  1. Institute of Biotechnology, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
  • Online:2011-10-20 Published:2011-10-20

摘要: 在大田旱作条件下,通过田间小区试验,研究了施用磷肥(P2O5) 150 kg/hm2、钾肥(K2O) 225 kg/hm2的基础上,不同施氮水平(0,75,150,225 kg/hm2;N0,N75,N150,N225)对兰州百合产量、养分吸收及品质的影响。结果表明,一年、二年、三年生兰州百合产量年增长幅度分别为 (51.69±25.76)%、(110.71±40.85)%、(88.29±21.45)%,增幅最大为第2年,其次是第3年。兰州百合总糖、粗淀粉和水溶性糖总体均随着施氮量的增加而下降,粗纤维和粗蛋白含量随着施氮量的增加呈先升后降再升高的变化趋势,其中施氮条件下百合粗蛋白含量均高于N0,而水溶性糖含量均低于N0。当施氮量为75 kg/hm2时,总糖和粗淀粉含量比N0显著提高(增幅3.3%和5.1%,P<0.05)。当施氮量为 225 kg/hm2时,水溶性糖含量较N0下降显著(降幅6.2%,P<0.05)。当施氮量为 75 kg/hm2时,粗蛋白含量比N0极显著提高(增幅20.3%,P<0.01),而当施氮量为 225 kg/hm2时,比N0提高显著(增幅37.9%,P<0.05)。氮肥施用量是影响兰州百合产量和品质的主要因素之一。

Abstract: Dry conditions in the field by field experiment to study the application of phosphate (P2O5) 150 kg/hm2, potash (K2O) 225 kg/hm2, based on different nitrogen levels (0,75,150,225 kg/hm2;N0,N75,N150,N225) of lily yield, nutrient uptake and quality. The results showed that one, two, three years production of raw annual growth rate of lily, respectively (51.69±25.76)%, (110.71±40.85)%, (88.29±21.45)%, the largest increase for the second year, followed by the third year. Lily total sugar, starch and soluble sugar content increased with nitrogen rate generally decreased, following increasing content of crude fiber and crude protein increased as nitrogen rate was high after the first drop and then increase the trend, which lily under nitrogen content of crude protein were higher than N0, and soluble sugar content were lower than N0. When nitrogen is 75 kg/hm2, the total sugar and starch content increased significantly compared with N0 (an increase of 3.3% and 5.1%, P<0.05). When the nitrogen application rate of 225 kg/hm2, the soluble sugar content was significantly decreased compared with N0 (down 6.2%, P<0.05). When nitrogen is 75 kg/hm2, the crude protein content increased significantly compared with N0 (an increase of 20.3%, P<0.01), and when the nitrogen application rate of 225 kg/hm2, the ratio of N0 was increased significantly (an increase of 37.9%, P<0.05). Nitrogen is the impact of yield and quality of lily one of the main factors.

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