August 2013

Influence of depths and soil pH on forms of magnesium in soils of four parent materials (Rhodic paleudults, Rhodic tropudalfs, Oxic tropudalfs and Aquic tropossamment)

The role of depths and soil pH in the content and occurrence of the forms of magnesium in soils of the four parent materials in Edo and Delta States (Coastal plain sand, Shale, Basement complex and Alluvium) was investigated. Soils samples were collected from profiles that developed on these parent materials, with dimensions 1.2 x 1.2 x 1.5 m and demarcated according to depths ranging from 0 to 150 cm. Reagents...

Author(s): Okpamen S. U., Ilori E. G., Agho I., Nkechika A., Maidoh F. U. and Okonjo P. N.

August 2013

Composition and structure of humic substances in long-term fertilization experimental soils of southern China

Humic substances are extremely important attributes of soil quality but the impacts of long-term fertilization on their composition and structure remain controversial and are still not fully understood. A study, employing various methods was conducted to elucidate the influence of long-term fertilization practices on the composition and structure of humic substances. Soil samples were collected from eight treatments at...

Author(s): Bocar Ahamadou, Qiaoyun Huang, Lin Yaping and Javed Iqbal