SUN Hu.Effects of Nitrogen Fertilizer on Tomato Aging Control and Production[J].Northern Horticulture,2016,40(24):35-37.[doi:10.11937/bfyy.201624009]
氮肥对番茄衰老调控及产量的影响
- Title:
- Effects of Nitrogen Fertilizer on Tomato Aging Control and Production
- Keywords:
- tomato; nitrogen level; aging; yield
- 文献标志码:
- A
- 摘要:
- 以大粉果番茄“西方519”为试材，系统研究了氮素水平对番茄叶片衰老及产量的影响，以探讨设施栽培条件下番茄高产适宜的施氮量。结果表明：番茄叶片中叶绿素含量和净光合速率、保护酶活性均随着氮素水平的增加而增加，丙二醛（MDA）含量则随着施氮量的增加而降低，当施氮量超过300 kg?hm-2时，上述指标变化不显著，表明合理施氮可以使番茄植株延缓衰老；增施氮肥可以显著提高番茄产量，当氮肥使用量在300 kg?hm-2时产量最高，氮肥用量为200 kg?hm-2时经济系数最高。
- Abstract:
- In order to discuss the suitable nitrogen application rate of high yield of tomato in facility cultivation conditions，pink tomato ‘Western 519’ was used as test material，effects of nitrogen levels on tomato leaf senescence and yield were studied systematically.The results showed that，tomato leaf chlorophyll content and net photosynthetic rate，protective enzyme activity increased with the increasing of nitrogen levels，but the MDA content decreased with the increasing of nitrogen levels.When nitrogen levels were more than 300 kg?hm-2，above indicators had no significant increase or decrease.The above showed that reasonable nitrogen could delay the aging of the tomato plants.Nitrogen could significantly increase the yield of tomato，and when the nitrogen levels in the 300 kg?hm-2，it had the highest yield.But when the nitrogen levels in the 200 kg?hm-2，the economic coefficient was the highest.
参考文献/References:
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备注/Memo
作者简介：孙虎（1979-），男，山东济南人，硕士，讲师，现主要从事蔬菜栽培与育种等研究工作。E-mail：412178377@qq.com.基金项目：国家星火计划资助项目（2014GA740112）。