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利用原子吸收光谱分析测定了番茄植株在不同生育期若干营养元素的含量。结果表明：在幼苗、营养生长、生殖生长３个生育期的同期比较中，４种微量元素Ｆｅ，Ｚｎ，Ｃｕ，Ｍｎ在其根部含量高于茎部和叶部的含量。幼苗期Ｆｅ的加权平均浓度远高于营养生长和生殖生长期。Ｚｎ和Ｃｕ表现出营养生长期的加权平均浓度较高，而该时期Ｍｎ则最低。４种宏量元素Ｍｇ，Ｃａ，Ｋ，Ｎａ则是，在３个生育期中，叶部的Ｃａ含量高于茎部和根部的，而茎部的Ｋ含量高于根部和叶部的。番茄植株中Ｃａ的加权平均浓度随生长发育逐渐递增，而Ｋ则逐渐递减。Ｍｇ含量表现出在幼苗期根部最高，营养生长期茎部最高，生殖生长期叶部最高。番茄植株中尚含有一定量的Ｎａ。
Atomic absorption spectroscopy was used to determine the content of some nutrients in tomato plants at different growth stages. The results showed that the contents of four trace elements (Fe, Zn, Cu and Mn) were higher at the root and shoot than at the three growth stages of seedling, vegetative growth and reproductive growth. The weighted average concentration of Fe in seedling stage is much higher than vegetative and reproductive growth stages. Zn and Cu showed a higher weighted average concentration during vegetative growth while Mn was the lowest during this period. The four macroelements Mg, Ca, K and Na were higher Ca content in leaves than in stems and roots at three growth stages, while K content in stems was higher than roots and leaves. The weighted average concentration of Ca in tomato plants gradually increased with the growth and development, while K gradually decreased. Mg content showed the highest root in seedling stage, highest in vegetative stage and highest in reproductive stage. Tomato plants still contain a certain amount of Na.