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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (20): 275-278.

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

无土栽培番茄果实N养分变化动态

任晓平 张喜春 谷建田 孙玉娇 刘艳梅   

  • 收稿日期:2010-03-19 修回日期:2010-06-21 出版日期:2010-10-20 发布日期:2010-10-20
  • 基金资助:

    《番茄抗晚疫病优良品种选育及试验示范》;《名特优蔬菜新品种示范和推广》;《北京市绿色农业蔬菜新品种选育》;《北京市属高等学校人才强校计划资助项目》

The Dynamics of N Nutrient of Tomato Fruit in Soilless Cultivation

  • Received:2010-03-19 Revised:2010-06-21 Online:2010-10-20 Published:2010-10-20

PDF (PC)

912

摘要：

为了选择适合无土栽培番茄生长的基质配方，运用荷兰进口设备进行番茄无土栽培试验，以草炭、蛭石、珍珠岩和砂子为基质，采用不同的混配比例，比较了不同基质对番茄N养分变化的影响。结果表明：在不同的配方基质处理下，番茄植株从基质中吸收的N元素含量各不相同。从总体水平上看，草炭:蛭石:珍珠岩=1:1:1的基质配方要优于其它基质配方,有利于番茄对N的吸收；而且番茄体内的N含量有随生育期的延长而降低的趋势。

关键词: 杨梅, 杨梅, 温度胁迫, 液相氧电极, 光合速率, 呼吸速率

Abstract:

The experiment was studied the changes of N nutrient in tomato that was planted in substrates mixed by different ratio, including peat, vermiculite, perlite and sand. The results showed that the N contents of tomato absorbed from the different treatments were obviously discrepancy. From the overall level, the substrate of C treatmeat was conducive to the absorption of tomato, and C treatment was superior to other treatments. In different periods, the N contents were different change trends of tomato leaves and fruit, and the N content in leaves was higher than the fruit. The N content of tomato was decreasing with prolonging growth period.