srjalsSRJALSSRJALS2788-9386https://doi.org/10.47310/srjals.2023.v03i02.008A Review: Study of the Effect of Irrigation Level and Rotation in the Operating Pressure of the Drip Irrigation System on the Stability of the Aggregates in a Loamy, Silty Mixed SoilNayyefHusseinRazzaqHameedHasanenSaeedShatrah Technical College, Southern Technical University, Basrah, IraqMinistry of Agriculture, Wasit Governorate Agriculture Directorate, Wasit, IraqA field experiment was conducted in the Muhairja region/Al-Hay district/Wasit Governorate during the fall season 2021-2022 on a soil with a loamy, silty mixture texture (sand 80 g / kg, silt 590, clay 330). It is classified as Typic Torrifluvent, for the purpose of studying the effect of three irrigation levels (100% EP, 75% EP and 50% EP). Overlapped with the operating pressure factor in three selected combinations represented by (20-30-40) kilopascals, by (9) coefficients and the yellow corn (Zea mays L.) crop of research 106 was used as an indicator of growth and production. It was evident that there was an improvement in some physical properties of the soil one month after the start of the experiment in the irrigation level 75% EP, as it recorded 0.3138 mm, compared to the other irrigation levels EP50% and 100% EP, as this led to an increase in the values of the average weighted diameter of the soil. While the results showed at the end of the experiment that there was an increase in the average diameter values with an increase in the irrigation level from 50% EP-75% EP-100% EP, as the 100% EP irrigation level gave the highest values for the weighted average diameter at the end of the experiment by 0.3712 mm.