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Study on the effect of tractors and agricultural machines traffic on soil compaction [electronic resource].

By:

Morad, M. M

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Language: English Summary language: Arabic Description: p.791-810Other title:

دراسة عن تأثير مرور الجرارات واآلات الزراعية على تضاغط التربة [Added title page title]

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Zagazig journal of agricultural research, 2006 v. 33 (4) [electronic resource].

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In: Zagazig Journal of Agricultural Research 2006.v.33(4)Summary: Field experiments were conducted to study the effect of tractors and agricultural machines traffic on the state of soil compaction in terms of soil bulk density and soil penetration resistance. Two main experiments were carried out. The first experiment was conducted during land levelling operation for rice using three different tractors equipped with three different land levellers at four different forward speeds and two different moisture contents. The second experiment was conducted during harvesting rice using three different combines at four different forward speeds. The experimental results revealed the following points: Penetration resistance as well as soil bulk density values was higher for heavy tractors and heavy agricultural machines than for light ones under all investigated parameters. The root growth zone (20 cm depth) and crop yield were in the safe region under the following conditions.

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Field experiments were conducted to study the effect of tractors and agricultural machines traffic on the state of soil compaction in terms of soil bulk density and soil penetration resistance. Two main experiments were carried out. The first experiment was conducted during land levelling operation for rice using three different tractors equipped with three different land levellers at four different forward speeds and two different moisture contents. The second experiment was conducted during harvesting rice using three different combines at four different forward speeds. The experimental results revealed the following points: Penetration resistance as well as soil bulk density values was higher for heavy tractors and heavy agricultural machines than for light ones under all investigated parameters. The root growth zone (20 cm depth) and crop yield were in the safe region under the following conditions.

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