The experiment in the field to evaluate the effects of two kinds of the Miscar (Ridge Tablet and Ridge Disc) putting two spaces between the operative parts (90 and 110)cm and two frontal speed (4 and 2.6) km/hour according to the design of the complete random block by using split split plot design on the indications of forming the Miscar which is the width and hight of the Miscar and measuring the percentage of the Miscar stability according six stages included measuring the Miscr stability after the rain fall in order to know the Miscar's resistance ability for the atmospheric weathers, it is measured in 29/10/2012, 20/11/2012, 5/12/2012, 26/12/2012, 13/1/2013. The results appeared the superiority of the ridge tablet over the ridge disc in all the descriptions of Miscar's forming, whereas the high speed surpassed by recording highest value of Miscar's height, while the low speed recorded less value of Miscar's height and highest value of the stability percentage in 5/2/2012 and 13/1/2013, regarding the space, the big space gave highest values for the width and hight of the Miscar, whereas the little space between the operative parts gave highest values concerning the stability value of the Miscar in 20/11, 5/12, 26/12/2012 and in 13/1/2012, also it is found that all the overlapping between the spaces and the Miscar's type has moral effect in Miscar forming, thus the ridge tablet surpassed in these speeds and spaces by recording highest values for the Miscar's width and height and the stability percentage, while at the tripartite overlapping between the speeds and spaces and the Miscar's type, the ridge tablet recorded highest value comparing with the ridge disc which recorded less values in these overlapping in all the indications of Miscar's forming whereas there was no moral effect of the overlapping between the speed and the space in the indications of Miscar's forming.