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| Jørgensen, M.H.; Kristensen, E.F.; Kristensen, J.K.; Melander, B.. |
| Surface steaming of soil is a very energy-intensive process, and consequently, efforts have been made to develop a machine for narrow-band steaming of the soil under and around rows of cultivated plants prior to seeding. The use of this machine may achieve up to 90% energy savings, and will also reduce the amount of damage to the flora and fauna. A special test rig has been developed with the objective of obtaining new information about narrow-band soil steaming. For a detailed analysis of the temperature profile in a cross-section of the processed band, an apparatus has been developed especially to record the temperatures obtained at 63 locations and at seven levels across the ditch. On the basis of the results from the test rig, a prototype band-steamer... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Weed management Vegetables Denmark. |
| Ano: 2004 |
URL: http://orgprints.org/4807/1/4807.pdf |
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| Schjønning, P.; Jørgensen, M.H.; Olesen, J.E.; Rasmussen, G.; Munkholm, L.J.; Melander, B.. |
| Der er fra det danske landbrugserhverv formuleret ønske om, at der iværksættes en bedre rådgivning omkring gennemførelse af reduceret jordbearbejdning, herunder direkte såning (FRDK, bl.a. ved mødet i Forskningskontoret 18. januar 2001). Problemstillingen har interesse for såvel konventionelle som økologiske jordbrugere, idet reduceret bearbejdning af jorden som udgangspunkt er positivt for jordkvaliteten. Der er gennemført en lang række undersøgelser omkring reduceret jordbearbejdning og direkte såning i Danmark. En række forhold har dog til dels gjort disse resultater forældede. Det skyldes bl.a. den politisk bestemte udvikling i de dyrkede afgrøder, herunder i særlig grad sædskiftet, som har stor betydning for reduceret jordbearbejdning. De gennemførte... |
| Tipo: Report |
Palavras-chave: Production systems; Soil tillage; Farming Systems; Soil. |
| Ano: 2001 |
URL: http://orgprints.org/730/1/redj_not.doc |
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| Jørgensen, M.H.; Kristensen, J.K.; Melander, B.; Kristensen, E.F.. |
| For many years, disinfection of the soil by means of steaming has been a common method for eliminating weeds and fungal diseases. However, surface steaming of soil is a very energy-intensive process, and consequently, efforts have been made to develop a machine for narrow-band steaming of the soil under and around rows of cultivated plants prior to seeding. The use of this machine may achieve up to 90% energy savings, and will also reduce the amount of damage to the flora and fauna. A special test rig has been developed with the objective of obtaining new information about narrow-band soil steaming. The test rig consists of a revolving ditch, in which the soil can be heated by means of submerged steam jets. The rig is equipped with thermosensors for... |
| Tipo: Journal paper |
Palavras-chave: Weed management; Buildings and machinery; Denmark. |
| Ano: 2004 |
URL: http://orgprints.org/4822/1/4822.pdf |
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| Melander, B.; Jørgensen, M.H.. |
| Steaming the soil prior to crop establishment can be a very effective method of preventing weed seedling emergence on raised beds in vegetable cropping. However, current mobile steaming technology for outdoor vegetables is characterised by an extremely high energy consumption and a low work rate. This has led to the concept of band-steaming, where only a limited soil volume is steamed corresponding to the intrarow area of a row grown vegetables crop. Weeds growing in the intrarow area are troublesome to remove by traditional non-chemical means, usually involving substantial input of manual labour in organic cropping. This paper presents the first results from laboratory studies with steaming a limited soil volume simulating a band. The investigations aimed... |
| Tipo: Journal paper |
Palavras-chave: Weed management. |
| Ano: 2005 |
URL: http://orgprints.org/2626/1/2626.pdf |
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