A master's thesis discusses the effect of the type of drip irrigation pipe and the type of soil improver on some physical properties of the soil and the growth and yield of eggplant.

 A master's thesis at the Faculty of Agriculture discussed the effect of the type of drip irrigation pipe and the type of soil improver on some physical properties of the soil and the growth and yield of eggplant grown in greenhouses, by the student Ayham Salah Muhammad, under the supervision of Professor Dr. Hussein Zaher Taher, and Assistant Professor Dr. Wael Fahmy Abdel Rahman. The study aimed to evaluate the performance of the subsurface drip irrigation system (RDI) and its effect on the growth and yield of eggplant grown in greenhouses under the influence of adding improvers and comparing the use of two types of subsurface drip irrigation pipes (RDI, and T-Tape) and adding perlite and zeolite improvers on some physical soil properties and eggplant yield, studying the effect of adding perlite and zeolites on the moisture and saline distribution under two types of drip irrigation pipes with the addition of perlite and zeolites in protected agriculture conditions, determining the water consumption of eggplant grown in greenhouses and knowing the water use efficiency of two types of drip irrigation pipes. The study recommended the use of drip irrigation pipes (RDI) to irrigate vegetable crops grown in greenhouses, as it achieves high efficiency in moisture distribution and does not require opening and closing the irrigation system, in addition to maintaining the quality of performance, its advantages in improving the physical properties of the soil and increasing crop productivity, and adding perlite improver to the soil before planting, as it leads to improving the physical properties of the soil and increasing crop productivity.