| 氮、钾配施对田七种苗质量及氮、钾吸收的影响 |
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| 引用本文： | 林昌华,白音,刘友光,石海英.氮、钾配施对田七种苗质量及氮、钾吸收的影响[J].安徽农业科学,2011,39(25):15265-15267. |
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| 作者姓名： | 林昌华 白音 刘友光 石海英 |
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| 作者单位： | 1. 韶关学院英东农业科学与工程学院,广东韶关,512005
2. 韶关学院英东生命科学学院,广东韶关,512005 |
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| 摘 要： | 目的]明确N、K配施对田七种苗生长发育及营养状况的影响。方法]采用随机区组设计方法布置田间试验,凯氏定氮法测全N,火焰光度计法测全K。结果]田七种苗干物质的积累来看,所有处理配方对田七种苗干重的影响没有显著差异,其总体表现为T2〉T3〉T5〉T4≥T1;主根鲜重的表现为T3〉T4〉T2〉T5〉T1,其中T3、T4、T2与对照组之间存在显著差异;全株N吸收量为T3〉T2〉T4〉T5〉T1,其中T3水平与对照组之间差异性显著,N吸收量提高了36.19%;全株K吸收量为T2〉T3〉T4〉T5〉T1,其中T2和T3水平与对照组之间差异性显著,其K吸收量分别提高38.78%和37.42%。结论]N、K合理配施不仅能够提高田七种苗的质量,而且也有利于田七种苗对N、K等矿质营养的吸收利用。
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| 关 键 词： | 田七 氮 钾 种苗质量 |
Effects of Combined Application of Nitrogen and Potassium on Seedling Quality and Uptake of N and K of Panax notoginseng |
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| Institution: | LIN Chang-hua et al(College of Yingdong Ggricultural Science and Engineering,Shaoguan University,Shaoguan Guangdong 512005) |
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| Abstract: | Objective] To study the effects of combined application of nitrogen(N) and potassium(K) on seedling quality and its growth and nutrition status of Panax notoginseng.Method] A pot experiment with randomized block design was conducted in field of Panax notoginseng;the contents of N and K were respectively determined by kjeldahl method and flare photometer.Result] the combined application of nitrogen(N) and potassium(K) was not significant impact on the seedling dry weight of Panax notoginseng,their total experession isT2>T3>T5>T4≥T1;The main fresh weight for T3,T4,T2 was significant,their total experession is T3>T4>T2>T5>T1;The uptake of N with per plant is T2>T3>T4>T5>T1,in which T3 was significantly greater,increasing by 36.19% compared with the control;The uptake of K with per plant is T2>T3>T4>T5>T1,in which T2 and T3 was significantly greater,increasing by 38.78% and 37.42% respectively compared with the control;Conclusion] The combination of N and K fertilizer could improve the seedling quality of Panax notoginseng,and also increase the absorption of N and K. |
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| Keywords: | Panax notoginseng Nitrogen Potassium Seedling quality |
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