搜索结果: 1-6 共查到“农学总论 loess”相关记录6条 . 查询时间(0.046 秒)
Impact of the long-term straw supply on loess-derived soil structure
plant residues slaking soil structural properties organic matter
2008/11/26
Keeping plant residues on the field and incorporating them instead of removing or burning them, is a well-known practice in soil and water conservation. One of the objectives of this management is to...
Effect of organic carbon content on the compactibility and penetration resistance of two soils formed from loess
soil compactibility Corg. content penetration resistance bulk density
2008/11/21
Penetration resistance and bulk density were measured in the laboratory for two soils: grey-brown and brown, both formed from loess with different Corg. content which had been compacted using the Proc...
Influence of long-term liming on aggregate stability of a loess-derived soil
liming aggregate stability settlement loessial soil surface sealing
2008/11/18
Results of a long-term field trial on a silt loam soil near Freising (Upper Bavaria) show that evaluating the meliorative effect of liming on soil structural properties depends on the initial homogene...
Methane and carbon dioxide emissions from a loess soil treated with municipal waste water after second step of purification
methane emission carbon dioxide municipal waste water redox potential
2008/11/14
The aim of the study was to determine in laboratory conditions CH4 and CO2 emissions from a soil with including redox potential (Eh). Experiment was carried out under laboratory conditions on Ap horiz...
Nitrates(V) in loess soils modified by weather conditions(preliminary data of a model experiment)
nitrates(V) Eh pH loess soils anaerobic conditions
2008/11/13
In a model experiment (anaerobiosis) with full
saturation of soil samples with water and their incubation at 5, 10
and 20°C during 0-60 days, nitrates(V) concentration in soil solution,
Eh and pH i...
Studies on platinum (IV) ions sorption in loess and loamy soils
platinum ions sorption loess soil loamy soil
2008/11/12
The aim of the experiment was to study the sorption of platinum ions in loess and loamy soils in the presence of Pb(II) and Cd(II) ions, in relation to temperature, incubation time and concentration o...