Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : Clay Cracks


Mineralogical Analysis for Cracking Mass of Soils From Middle of Iraq

Raid. Sh . Jarallah; S. K.Essa

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 2, Pages 187-200
DOI: 10.33794/qjas.2016.115313

Seven soils sites (Afak Vertic-Torrifluvent , Al-Diwaniyah Typic-Torrifluvent , Al-Taleea Typic-Torrifluvent , Babel Vertic-Torrifluvent , College of Agriculture Typic-Torrifluvent , Al-Wahda Vertic-Torrifluvent and Al-Raid project Typic-Torrifluvent) were chosen to study some mineralogical properties of hard and friable parts of cracking mass the results showed :
- The x-ray diffractions showed in the clay minerals were arrangement as :
Smectite  Illite  chlorite  kaolinite
In all soils except (Afak and Al-Diwaniyah) soils were an arranged as follows :
Smectitice  Chlorite  Illite  Kaolinite .
- The x-ray diffractions found the chlorite mineral in all soils was swelling chlorite and that leads to increase of soil plasticity and an increased of swelling and shrinkage of soils by drying and wetting processes.
- The ratio of SM / Ch , SM/ IL , SM / R2O3 were decreased in the mineral composition in hard parts of cracking mass in all soils because of they differ in the mineral percent in clay fraction (fine and coarse).
- The hardness of hard parts of cracking mass is because of the increasing of Illite mineral in their content .
- The total and crystalline free iron oxides were increased in hard parts of cracking mass in all soils studied.

Chemical , physical and Biological Properties for Cracking Mass of Soils from Middle of Iraq

Raid. Sh . Jarallah; S. K.Essa

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 2, Pages 174-186
DOI: 10.33794/qjas.2016.115310

In order to investigate clayey cracks and their properties. Seven soils sites (Afak Vertic-Torrifluvent , Al-Diwaniyah Typic-Torrifluvent , Al-Taleea Typic-Torrifluvent , Babel Vertic-Torrifluvent , Agriculture college Typic-Torrifluvent , Al-Wahda Vertic-Torrifluvent and Al-Raid project Typic-Torrifluvent) were chosen for this study. The results show that EC , pH , sodium ions , organic matter , clay content , bulk density , free iron oxides (total and crystalline) , SAR and ESP were increased while CEC , moisture content , silt content , were decreased for hard part compared with friable part in all soils. The distribution of total and active carbonates were differ into two parts (hard and friable) depending on soils properties. The numbers of bacteria and fungi were decreased in hard part comparing with friable part in all soils.

Clay Cracks Properties in Some Soils of Mesopotamia plane / Iraq

Raid SH. Jarallah; S. K. Essa

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 1, Pages 165-174
DOI: 10.33794/qjas.2016.110172

In order to investigate clayey cracks and their properties. Seven soils sites (Afak Vertic-Torrifluvent , Al-Diwaniyah Typic-Torrifluvent , Al-Taleea Typic-Torrifluvent , Babel Vertic-Torrifluvent , Agriculture college Typic-Torrifluvent , Al-Wahda Vertic-Torrifluvent and Al-Raid project Typic-Torrifluvent) were chosen for this study. Some field morphological properties of cracking mass (numbers of cracking mass, crack's length , crack's width , crack's depth , thickness of hard part , thickness of friable part , surrounding of cracking mass and their shapes) were studied.
Results of morphological discretion of cracking mass showed there were some different in shape , width and depth depending on the plasticity , specific and quantitative of clay minerals, depth of ground water , period of growth season and land use.