应用生态学报2001，Vol.12Issue(2)：233-236,4.
土壤湿度水平和湿-干循环对硝酸钙盐积累
土壤锰释放的影响
Effect of soil moisture and wetting-drying on Mn release in Ca( NO3 )2-amended soils.
摘要
Abstract
A study on the effects of two moisture levels (200 and 400g.kg-1) and wetting-drying on the solubility of Mn in Ca
(NO3)2-amended soils showed that water regime was a factor affecting Mn availability. Easily reducible Mn was trans
formed into soluble and exchangeable Mn, when soil water content was high. Salt had a definite effect on the transfor
mation of easily reducible Mn. NO3- could decrease soil redox potential, and inhibit the transformation of easily re
ducible Mn. Wetting-drying significantly(a＜ 0.05) decreased the content of soil water-soluble and exchangeable Mn,
while Ca(NO3)2 increased the insolubility of Mn, which might eventually lead to the deficiency of soil Mn.
关键词
Mn有效性 硝酸盐 土壤水分 湿-干循环分类
农业科技引用本文复制引用
司友斌,马友华,章力干..土壤湿度水平和湿-干循环对硝酸钙盐积累
土壤锰释放的影响[J].应用生态学报,2001,12(2):233-236,4.
