Print ISSN: 2077-5822

Online ISSN: 2618-1479

Author : SH. Jarallah, Raid

The Effect of Sulfur and Phosphate Fertilizers Application on the Dissolved Phosphorus Amount in Rhizosphere of Zea Maize L.

Raid SH. Jarallah; Nihad A. Abbas

Al-Qadisiyah Journal For Agriculture Sciences, 2019, Volume 9, Issue 2, Pages 233-239
DOI: 10.33794/qjas.2019.167062

The experiment has been carried out in the department of soil sciences and water resources, college of agriculture, university of Al-Qadisiyah, during the agricultural season 2017-2018 by using the design Complete Randomized Design (C.R.D). The experiment in pots has used four levels of phosphate fertilizer P0, P1, P2, P3 (0, 30, 60 and 90) kg P. h1- respectively and one level of sulfuric fertilizer (agricultural and wettable) Sa and S (200) kg S.h1-. Maize seeds of DKC 6120 variety have been in plastic pots grown. Dissolved phosphorus in the soil is estimated during plant growth periods (40, 70, and 100) days of planting to study the effect of its application levels, sulfuric fertilizer application (agricultural and wettable) fertilizers and their overlap on the amount of dissolved phosphorus into the corn rhizosphere. Results show that the highest amount of dissolved phosphorus in and out of the rhizosphere soil obtained with application of the phosphate level P3 (90) kg P. h1- which were (0.69, 0.58, 0.55) μg. g1- and (0.75, 0.63, 0.59) μg. g1- for the soils of the rhizosphere and beyond respectively during the periods (40, 70 and 100) days of planting.

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.