اسم المؤلف:
يحيى جهاد شبيب
اسم المشرف:
علي حمضي ذياب المالكي | داخل راضي نديوي
المستخلص:
The study was conducted in Agriculture College farm / Basra University - Karmat Ali location, on alluvial silty clay soil (typic Torrifluvent) during autumnal season / 2014, to study the effect of three factors : the first factors; oil conditioners deliver type with three types ( fuel oil(FO), spent lubricated oil(SLO) and Bitumen(B) emulsion); the second factor : the level of addition within four levels (0 ,0.1,0.3 and 0.5% w/w to dry soil weight); and third factor, emulsification factor with two treatments(1st treatment, mixture of oil conditioner and water without emulsification process, and 2nd treatment the mixture of oil with water emulsification by addition artificial anionic emulsified agent (surfactant) with concentration 7 Mmol ,by using enough water quantity equal to soil saturation. Mechanical mixer was used to mixing and emulsification processes and to controlling the quantities of water, oil conditioner and surfactant by using accurate feeders and adjusted valve to suit required amount of each materials. The resultant mixture or emulsion is added to experimental units (plot with distance 10*2 m) by using a plastic pipe under pump pressure, the studied factors were combined in factorial experiment by using Randomized Complete Blocks Design with three replicates After the factorial completions were done soils in all plots were allowed to dissicated in order to evaporate most water from the mixture emulsion, then soil samples are collected from 0 - 20 ,20 - 40 cm depth to measure the quantities and penetration of oil compounds in soil profile.After that, the experimental units are planted with Corn seeds (zea mays) by paralled rows, Irrigation was doing periodically to compensate water content deficit to field capacity content with 20% leaching requirements.Also, Soil samples were collected at 0 - 20 cm and 20 - 40 cm depths at the beginning and end of growth season to measure bulk density, mean weight diameter (MWD). Also, some samples were collected at same depths after 48 hours of irrigation and prior to next irrigation in order to measure moisture content and saline distribution at the end of growth season, infiltration rate, soil moisture characteristic curve, frontal water movement of horizontal wetting advance and reduction in the ression of water from the soil surface. Moreover, the parameters of plant growth including plant length, dry weight, Corncobs weight and weight of 300 seeds of corn yield. The results reached can be summarized as follows : 1 - Addition of emulsion conditioners leads to the increase of penetration and distribution of oil compounds in soil depth compared with non - emulsionBconditioner, FO and SLO have greater impact in comparison with Bitumen Emulsion.2 - Mean weight diameter (MWD), and soil moisture content significantly increase wherever bulk density decreased due to the use of oil conditioners. That improvement is directly proportional with the level of conditioners up to 0.3%, with significant superiority for FO and SLO over the Bitumen .The emulsification oil by added emulsified agent has significant impact to improvement these soil physical properties comparison with non - emulsification oil treatment.3 - Results show a significant decrease of salt content with increasing the addition of oil conditioner up to 0.3%, with significant superiority of FO and SLO over the Bitumen Emulsion, with chiefly superiority emulsified conditioner over the non - emulsified conditioner.4 - Infiltration and infiltration rate increased in emulsified conditioners over non - emulsified conditioners depending on the variation of oil conditioner type, with prevalence of 0.3% level following by 0.5 %, Then 0.1% level. Highest values are achieved in FO and SLO comparison with the Bitumen Emulsion.5 - The results of soil moisture characteristic curve show the highest available water extracted from soil treated with oil conditioners emulsion under low tension, and this impact is significantly proportional with the increase of addition level from 0.1 - 0.5%, with significant superiority of FO and SLO over the Bitumen Emulsion6 - Emulsification of oil conditioners leads to increase the frontal water movement of horizontal wetting advance and reduction in the recession of water from the soil surface, and this impact is significantly proportional with the increase of addition level up to 0.3% limit with significant superiority of FO and SLO over the Bitumen Emulsion.7 - Results show significant increase of irrigation efficiency and water use efficiency for emulsified oil conditioners in comparison of non - emulsified conditioners. These efficiencies increases with addition level increase up to 0.3%, with significant exceedance of FO and SLO over the Bitumen Emulsion.8 - There is demonstrated significant increase of plants height, dry matter, Corn cobs weight and weight 300 seeds of Corn cobs for emulsified conditioners over non - emulsified conditioners, This effect is directly increase with increase of addition level up to 0.3 % , with a clear prevalence of FO and SLO over the Bitumen Emulsion.
