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应用生态学报 ›› 2002, Vol. ›› Issue (3): 382-384.

• 研究论文 • 上一篇    

增铵营养对小麦氮及矿质营养含量和积累的影响

戴廷波, 曹卫星, 孙传范   

  1. 南京农业大学农业部作物生长调控重点开放实验室, 南京 210095
  • 收稿日期:2000-05-22 修回日期:2000-12-27
  • 通讯作者: 曹卫星
  • 基金资助:
    国家自然科学基金资助项目(39670428)

Effects of enhanced ammonium nutrition on content and accumulation of nitrogen and mineral nutrients in wheat plant

DAI Tingbo, CAO Weixing, SUN Chuanfan   

  1. Key Laboratory of Crop Growth Regulation of Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095
  • Received:2000-05-22 Revised:2000-12-27

关键词: 水杨酸, 黄瓜, 低温, 光合作用, 油菜素内酯

Abstract: The hydroponics experiment was conducted to study the nutrition basis for growth promotion of wheat by Enhanced Ammonium Nutrition(EAN). Compared with fertilizing NO3- alone,EAN significantly increased Nconcentration and accumulation in leaves,sheaths,and whole plant,but there were not significant effects on roots. EAN had no significant effects on concentration of Pand K,but decreased that of Ca and Mg in whole plant. EAN increased accumulation of P,K,and Ca in whole plant,and decreased that of Mg,whereas single NH4+ decreased accumulation of all mineral nutrients. EAN had different effects on accumulation of mineral nutrients in different genotypes. Compared with fertilizing NO3- alone,EAN increased accumulation of P,K,and Ca of YM158 and LZ953. For the accumulation of JDM,there was little responsive to EAN. These results indicated that EAN promoted Nabsorption and increased accumulation of N,P,K,and Ca in whole plant.

Key words: Wheat, Enhanced ammonium nutrition(EAN), N accumulation, Mineral nutrient, low temperature, brassinolide, salicylic acid, cucumber (Cucumis sativa), photosynthesis

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