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作 者 ：李书鼎,曾建华

期 刊 ：生态学报 1990年 10卷 3期 页码：220~225

关键词：放射性示踪实验；小麦Se累集；土壤-小麦系统；低硒土壤；硒传输；

Keywords:soil-wheat system, radiotracer, translocation.,

摘 要 ：本文采用⁷⁵Se₂O作示踪剂,通过盆栽试验,对暗棕色森林土-小麦系统中,硒从土壤向小麦籽实的运转问题进行了初步探讨。硒转移规律的研究为合理使用微量元素硒肥,提高小麦中硒含量,从而提高人对硒的摄入量,防治某些地方病提供了理论依据。

Abstract:Dark Brown Forest Soil was collected from Hengren in Liaoning. Aquesous solution of ⁷⁵SeO₂ is mixed with the soil. Se adsorption, distribution and accumulation in wheat v as studied with pot-experiments. Amount of 75Se uptaked by wheat depends on the stages of growth. It is more in seeding stage, lesser during jointing to heading,and has a rapid increase during heading to maturity.Se contents in wheat grain croped on the soil containing 0.131 ppm and 1.631 Ppm of Se are 0.023 ppm and 0.493 ppm, respectively...

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