التنبؤ بمتطلبات السحب للمحراث الحفار مع الجرار ماسي فوركسن (MF 299)‎ في تربة طينية غرينية

الملخص EN

A field experiment was carried out using chisel plow ( 11 shale) with ( MF 299 ) tractor to find the effect of plowing speeds ( 3 5, 5.4, and 6.5 Km/hr) and the depth of tillage (10,15, and 20 cm) on tract requirements ( percentage of weight cohesive , draw bar power, rear axel power, power losses due to slippage, and tract wheel due to circle torque) , also to find the regression equation for these parameters.

An RCBD with three replications was used in a split ~ plot arrangement.

The main plots were the plowing speeds , and the sub plots were depth of tillage.

T he results indicated that increasing depth of plowing from 10 to 20 cm gave high percentage of cohesive weight, rear axel power and tract wheel due to circular torque wish percentages 41% , 42% , and 47% , respectively .

The effect of depth of plowing was more effective than spewed as regards rear axeS power, andtract wheel due to circular torque and draw bar power .

whereas the percentage of cohesive weight was more correlated with plowing speeds with degree of determination ( R2 = 0.949).

The effect of increasing 1 Km/hr in plowing speed increased tract wheel due to circular torque about ( 35%) , when plowing speeds increased from 3,5 to 5.4 Km/hr.

When plowing speeds increased about 1 Km/hr both power losses due to slippage and draw bar power were increased by 0.8W and 5.566 Kw, respectively.