The results were as follows:The mean contents of exchangeable Mg were 0.
通过 4 2 0个水稻土耕层土样测定 ,龙岩市水稻土代换性镁平均含量为 0 37cmol·kg-1,土壤镁素普遍缺乏 ,以潮沙田尤为严重。
The results showed that the input of hydrogen ions into soils could transform into positive charges, soluble Al and exchangeable acidity.
研究结果表明，氢离子输入土壤后可以转化为表面正电荷、可溶性铝和可交换性酸。
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