الفهرس 
Introduction
Importance of Press WheelOnly 14 pages are availabe for public view
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Abstract
The good pressing of the soil around seeds at planting moment is mean that perfect of seeding depth consequently increasing seeds germination rate. So, the technology of planter press wheel helpful to keep up the requirements of pressing the soil above the seeds, covering and seeds depth. The objective of the study is to determine the statics and dynamics forces requirements to realize a suitable compress on planted furrow for different types of seeds crops. The constructed press-wheel unit tested under different variables of two press-wheel ratio (W1=7.3 and W2=3.3), four spring index ”C” (10.5, 9.3, 7.7 and 7.1) and four adding load ”AL” (99, 126, 167 and 204 N for the first press wheel “W1 = 7.3” and 120, 157, 198 and 234 N for second press wheel “W2 = 3.3”). All variables were conducted for sandy soil under two soil moisture contents of 4.8 and 13.9% “wb”. The response each of; applied loads, spring index, press wheel factor on proposed press wheel structure, it easy to define the reaction of applied loads as changing in displacements or differences between Kinetic and Potential Energy. The arbitration criteria for judging on the final relationship between action (as adding load) and soil reaction (as soil rut) can be summarized as change in soil deflection relative to travel system. from the results it can concluded that the highest soil rut recorded at wheel ratio of 3.3, the two soil moisture contents, press on soil and at decreasing the forward speed and spring index. The high total energy found at the highest forward speed, applied load and lowest the both of spring index and wheel ratio.