IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL
The aim of this paper was to quantify soil compaction induced by tractor traffic on untilled wet silty loam soil (Mollic Fluvisol). Changes in penetration resistance, bulk density and total porosity were measured for detecting the soil compaction. Treatments include ten passes of a four-wheel drive...
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| Format: | Article |
| Language: | English |
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Faculty of Agrobitechnical Sciences Osijek
2011-12-01
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| Series: | Poljoprivreda |
| Subjects: | |
| Online Access: | http://161.53.194.251/~poljo/upload/publications/poljoprivreda-17-2-9.pdf |
| _version_ | 1818989282820358144 |
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| author | Dubravko Filipović Stjepan Husnjak Silvio Košutić Zlatko Gospodarić Igor Kovačev Krešimir Čopec |
| author_facet | Dubravko Filipović Stjepan Husnjak Silvio Košutić Zlatko Gospodarić Igor Kovačev Krešimir Čopec |
| author_sort | Dubravko Filipović |
| collection | DOAJ |
| description | The aim of this paper was to quantify soil compaction induced by tractor traffic on untilled wet silty loam soil (Mollic Fluvisol). Changes in penetration resistance, bulk density and total porosity were measured for detecting the soil compaction. Treatments include ten passes of a four-wheel drive tractor with the engine power of 54.0 kW and weight of 3560 kg (1580 kg on the front axle and 1980 kg on the rear axle, 2.41 m distance between axles). The tyres on the tractor were cross-ply, front 11.2-24 and rear 16.9-30, with the inflation pressure of 160 kPa and 100 kPa, respectively. The speed of tractor during passes over experimental plots was 5.0 km h-1. In comparison to control, each tractor pass induced an increase in soil penetration resistance at all depths, and the average increment ratios, determined as the average of all layers, were 9.8, 18.5 and 26.1% after one, five and ten passes, respectively. The bulk density also increased with number of tractor passes, but with less percentage increasing. The increment ratios comparison to the control were 3.6, 9.5 and 12.9% after one, five and ten passes, respectively. The total porosity decreased with the number of passes, and the decrement ratios were 4.5, 16.5 and 20.8% after one, five and ten passes, respectively. |
| first_indexed | 2024-12-20T19:36:00Z |
| format | Article |
| id | doaj.art-26aa01e07fe74c4688ae444fef0e7516 |
| institution | Directory Open Access Journal |
| issn | 1330-7142 1848-8080 |
| language | English |
| last_indexed | 2024-12-20T19:36:00Z |
| publishDate | 2011-12-01 |
| publisher | Faculty of Agrobitechnical Sciences Osijek |
| record_format | Article |
| series | Poljoprivreda |
| spelling | doaj.art-26aa01e07fe74c4688ae444fef0e75162022-12-21T19:28:39ZengFaculty of Agrobitechnical Sciences OsijekPoljoprivreda1330-71421848-80802011-12-011724348IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOILDubravko Filipović 0Stjepan Husnjak 1Silvio Košutić 2Zlatko Gospodarić 3Igor Kovačev4Krešimir Čopec 5Faculty of Agriculture, University of Zagreb, Zagreb, CroatiaFaculty of Agriculture, University of Zagreb, Zagreb, Croatia Faculty of Agriculture, University of Zagreb, Zagreb, CroatiaFaculty of Agriculture, University of Zagreb, Zagreb, CroatiaFaculty of Agriculture, University of Zagreb, Zagreb, CroatiaFaculty of Agriculture, University of Zagreb, Zagreb, CroatiaThe aim of this paper was to quantify soil compaction induced by tractor traffic on untilled wet silty loam soil (Mollic Fluvisol). Changes in penetration resistance, bulk density and total porosity were measured for detecting the soil compaction. Treatments include ten passes of a four-wheel drive tractor with the engine power of 54.0 kW and weight of 3560 kg (1580 kg on the front axle and 1980 kg on the rear axle, 2.41 m distance between axles). The tyres on the tractor were cross-ply, front 11.2-24 and rear 16.9-30, with the inflation pressure of 160 kPa and 100 kPa, respectively. The speed of tractor during passes over experimental plots was 5.0 km h-1. In comparison to control, each tractor pass induced an increase in soil penetration resistance at all depths, and the average increment ratios, determined as the average of all layers, were 9.8, 18.5 and 26.1% after one, five and ten passes, respectively. The bulk density also increased with number of tractor passes, but with less percentage increasing. The increment ratios comparison to the control were 3.6, 9.5 and 12.9% after one, five and ten passes, respectively. The total porosity decreased with the number of passes, and the decrement ratios were 4.5, 16.5 and 20.8% after one, five and ten passes, respectively.http://161.53.194.251/~poljo/upload/publications/poljoprivreda-17-2-9.pdfsoil compactiontyrespenetration resistancebulk densitytotal porosity |
| spellingShingle | Dubravko Filipović Stjepan Husnjak Silvio Košutić Zlatko Gospodarić Igor Kovačev Krešimir Čopec IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL Poljoprivreda soil compaction tyres penetration resistance bulk density total porosity |
| title | IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL |
| title_full | IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL |
| title_fullStr | IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL |
| title_full_unstemmed | IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL |
| title_short | IMPACT OF THE REPEATED TRACTOR PASSES ON SOME PHYSICAL PROPERTIES OF SILTY LOAM SOIL |
| title_sort | impact of the repeated tractor passes on some physical properties of silty loam soil |
| topic | soil compaction tyres penetration resistance bulk density total porosity |
| url | http://161.53.194.251/~poljo/upload/publications/poljoprivreda-17-2-9.pdf |
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