تأثير سرعة الساحبة مع الآلة الزراعية و عدد مرات مرورها و عمق التربة المكبوسة في بعض الصفات الفيزيائية للتربة

الملخص EN

A field experiment was conducted in clay soil to study effect of four forward speeds to tractor-implement (0.49, 0.71, 0.99, 1.25m/sec) and four treatments of traffic tractor-implement on soil {without traffic (0T), one stage traffic (1T), twice stage traffic (2T), and three stage traffic (3T)} in bulk density, total porosity and soil penetration resistance for four soil compaction depths (0-5, 5-10, 10-15, 15-20cm).

The results was showed the significant superiority for forward speed 1.25m/sec on other forward speed to given higher bulk density and soil penetration resistance and lower soil total porosity.

As well as, the traffic treatments was significant superiority compared with treatment without traffic to given higher bulk density and soil penetration resistance and lower soil total porosity, while the treatment of 3T was significant superiority on other traffic treatment (1T and 2T) to given higher bulk density and soil penetration resistance and lower soil total porosity.

The depth 15-20 also was significant superiority compared with other depths to given higher bulk density and soil penetration resistance and lower soil total porosity.

The results was showed the interaction between the treatment of 3T in forward speed 1.25m/sec was significant superiority on other interaction traffic treatments to given higher bulk density and soil penetration resistance and lower soil total porosity.

As well as, The interaction between the treatment of 3T and depth 15-20cm was given significant superiority on other interaction treatments in upper bulk density and soil penetration resistance and lower soil total porosity.

The interaction between forward speed and depth was significant effect on soil penetration resistance only.

where the forward speed 1.25m/sec and depth 15-20cm was significant superiority on other interaction treatments in given upper soil penetration resistance.