SUN Xing-rong,BIAN Jing-yang,LIU Lin-shuai,et al.Effects of Nitrogen Amount on the Yield and Quality of Rice[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(11):48-51.[doi:10.11942/j.issn1002-2767.2019.11.0048]
氮肥施用量对水稻产量及品质的影响
- Title:
- Effects of Nitrogen Amount on the Yield and Quality of Rice
- Keywords:
- rice; nitrogen fertilizer; yield; quality
- 文献标志码:
- A
- 摘要:
- 为探究水稻生产中的适宜施氮量，以龙稻18、龙稻6014，龙稻21为试验材料，通过田间试验研究不同氮肥施用量对水稻产量及品质的影响。结果表明：在一定范围内，3个品种的产量随施氮量的增加而增加，在施氮量162.5 kg?hm-2时，产量最高。糙米率、精米率、整精米率在3个品种间的变化趋势不同，在各施氮水平内差异均不显著；垩白粒率、垩白度在3个品种间的变化趋势不一致，其中龙稻18在N1（97.5 kg?hm-2）、N3(162.5 kg?hm-2)水平间差异显著，龙稻6014在N2(130.0 kg?hm-2)、N3水平间差异显著。直链淀粉含量、蛋白质含量在3个品种间的变化趋势不一致，在各处理间差异不显著。食味评分在3个品种间的变化趋势不一致，其中龙稻18、龙稻6014的食味评分随着施氮量的增加而升高，N3水平时食味评分最高，在N1、N3水平间存在显著性差异。
- Abstract:
- In order to explore the appropriate amount of nitrogen application in rice production,Longdao18,Longdao 6014 and Longdao21 were used as experimental materials to study the effect of different nitrogen application amount on yield and quality of rice.The results showed that the the yield of Longdao 18,Longdao 6014,Longdao 21 was increased with the increasing of nitrogen amount,the treatment N3 produced the maximum yield.The brown rice rate,rice rate and head rice rate had different trends in the three varieties,and had no significant difference under three N treatments.The chalky rice rate and chalkiness degree had different trends in the three varieties,and Longdao 18 was significant difference between treament N1 and treament N3,Longdao 6014 was significant difference between treament N2 and intreament N3.Amylose and protein content had different trends in the three varieties,and had no significant difference with treatments.Taste score have different trends in the three varieties,the taste score of Longdao 18,Longdao 6014 was increased with the nitrogen amount rate increasing,the treatment N3 produced the maximum score,and have significant difference between treament N1 and treament N3.
参考文献/References:
［1］Peng S B,Buresh R J,Huang J L,et al.Improving nitrogen fertilization in rice by site-specific N management: a review[J].Agronomy for Sustainable Development,2010,30: 649-656.
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备注/Memo
收稿日期：2019-06-29