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园艺学报 ›› 2004, Vol. 31 ›› Issue (4): 472-476.

• 研究论文 • 上一篇    下一篇

不同施氮量对甜椒碳、氮营养分配的影响

隋方功 吕银燕 王运华 周广胜 樗木直也   

  1. (·莱阳农学院农学系,莱阳265200; 华中农业大学资源环境学院,武汉430070; 中国科学院植物研究所,北京100093; 鹿儿岛大学农学部, 日本鹿儿岛890)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-08-25 发布日期:2004-08-25

Efect of Diferent Nitrogen Applied on the Distribution of Carbon and Nitrogenin Sweet Pepper

Sui Fanggong ,LU Yinyan’
, W ang Yunhua ,Zhou Guangsheng , and Chishaki Naoya   

  1. ( Laiyang Agricultural College,Laiyang 265200,ChinⅡ; Huazhong Agricultural University, Wuhan 430070,China;Institute ofBotany,Chinese Academy ofSciences,Beijing 100093,China; Kagoshima University,Kagoshima 890,Japan)
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-08-25 Published:2004-08-25

摘要: 通过水培试验,利用 N和”C双示踪技术研究了不同施氮量对甜椒结果期碳、氮营养分配的
影响 结果表明:结果前期吸收的 N在低氮(NO3一N 2.5 mol·L~,NH4+一N 0.25 mol·L )营养处理下
分配于果实中的比率高于中氮(NO;一N 5.0 mol·L~,NH —N 0.5 mol·L )和高氮(NO;一N 11.0 mol‘
L~,NH4+一N 1.0 mol·L )营养处理。氮水平制约着 N在各器官中的分配和再运转,很少影响”C在器
官间的分配,但却制约着”C的运转和再分配,表现为中氮营养最有利于 C向果实中的再运转。碳氮营养
平衡有利于碳素向生殖器官的运转和积累,这是低氮营养产量前高后低,高氮营养产量前低后高,中氮营
养前后期产量均较高的根本原因。

关键词: 甜椒, 氮素, 碳素, 示踪, 分配

Abstract: Sweet pepper(Capsicum annuum L.)was used to study the effect of different nitrogen applied on the distribution of carbon and nitrogen assimilated and absorbed during fruit harvest period by using N and C double tracer echnique.The results obtained are as follows:The distributed ratio of the N absorbed at early fruiting stage Oil the fruit was 50.49% at lower N and it was higher significantly than that at the
moderate and the higher N treatments.Nitrogen nutrition not only controlled the distribution of N absorbed on
the different organs.but also affected its translocation.Nitrogen nutrition affected hardly the distribution of”C
assimilated among the organs but controlled the translocation and redistribution of”C,and as a result,the
moderate N was most beneficial to the redistribution of”C up to fruit.The balance of carbon and nitrogen iS
favorable to the accumulation and translocation to the reproductive organ.It iS why that the yield iS higher ear—
lier stage than after stage at lower N,but adversely at higher N and only at moderate N either of all is higher.

Key words: Sweet pepper, Nitrogen, Carbon, Tracer, Distribution