搜索结果: 1-2 共查到“农学总论 humic acids”相关记录2条 . 查询时间(0.046 秒)
CHARACTERISTICS OF HUMIC ACIDS ISOLATED FROM SOILS UNDER VARIOUS FARMING SYSTEMS
ecological farming integrated farming humus
2009/3/30
Farming systems strongly affect soil humus. In this study some humus characteristics were used to compare the humus quantity and quality under two different farming systems. The field experiment was e...
The surface properties of humic acids extracted from chernozem and grey-brown podzolic soils
adsorption specific surface area molar energy of adsorption
2008/11/11
The authors characterized selected surface properties of humic acid preparations extracted from three types of Polish soils (degraded chernozem developed from loess, grey-brown podzolic soil developed...