Investigation of optical properties of humic acids of sod-podzolic soil

被引：1
|
作者：
N. E. Zav’yalova
机构：
[1] Perm Agricultural Research Institute,
来源：
Russian Agricultural Sciences | 2012年 / 38卷 / 5-6期
关键词：
sod-podzolic soil; fertilizers; humic acids; absorption spectra; extinction;
D O I：
10.3103/S1068367412050217
中图分类号：
学科分类号：
摘要：
The effect of the long use of various fertilizer systems on the optical properties of humic acids of sod-podzolic soil is shown. Optically more dense humic acids are formed under conditions of a lack of organic matter. Organic and organomineral fertilizer systems promoted a decrease of optical density of solutions of humic substances.
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页码：386 / 388
页数：2
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