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| Registros recuperados: 14 | |
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| Paulsen, H M; Schochow, M; Ulber, B; Kuhne, S; Rahmann, G. |
| Agricultural advantages of mixed cropping are gained from biological effects like light competition offering weed-suppressing capacities, or by diversification of plant covers to break development cycles of pests. These effects were measured in a two-year project on mixed cropping with organic oilseed crops. It was found that weeds can be efficiently suppressed in organic linseed (Linum usitatissivum) grown in combination with wheat (Triticum aestivum) or false flax (Camelina sativa). Linseed growth was, however, impaired. In organic pea production (Pisum sativum) also, growing the crop as a mixture with false flax led to a significant decrease of weed population. Either culture showed a balanced plant development. In winter rape (Brassica napus) there... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/10230/1/Mixed_cropping_systems_for_biological_control_of_weeds_and_pests_in_organic_oilseed_crops.pdf |
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| Rasmussen, I.A.; Askegaard, M.; Olesen, J.E.; Kristensen, K.. |
| We investigated the effects on annual weeds of location, weed control, manure application and catch crops and their interactions in a crop rotation with cereals and pulses for grain during conversion to organic farming in order to better understand the combined effects of management. An experiment with a four-year crop rotation (spring barley/undersown ley, grass-clover, winter wheat, pea/barley) was carried out from 1997 to 2000 under organic conditions at three locations in Denmark with four treatments: with and without catch crop, and with and without manure. Mechanical weed control was reduced or absent in cereals or pulses with undersown catch crops or grass-clover. Manure application increased weed biomass, but not the proportion of total biomass... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/7904/1/7904.pdf |
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| Rasmussen, I.A.; Askegaard, M.; Olesen, J.E.. |
| A crop rotation experiment was established in 1997 at three locations representing different soil types and climates. Three factors were tested: crop rotation, catch crop and manure. Catch crop reduced nitrate leaching, but prohibited stubble cultivation. The use of catch crops resulted in increased levels of perennial weeds (E. repens) at one location, while at another; the level of C. arvense was not affected by catch crops, when compared with the use of stubble cultivation. Management of perennial weeds should include considerations of where in a crop rotation to use stubble cultivation, and this should preferably not be after a pulse crop. Catch crops are a more profitable way to manage C. arvense than stubble cultivations. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2005 |
URL: http://orgprints.org/6070/1/6070a.pdf |
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| Beiküfner, Mareike; Trautz, Dieter; Insa, Kühling. |
| Beim Anbau von Sojabohnen (Glycine max (L.) Merr.) besteht während der langsamen Jugendentwicklung und der Abreife die Gefahr von Verbeikrautung, was in Ertragsreduktionen resultieren kann. Im ökologischen Anbau, in dem der Einsatz von Herbiziden nicht erlaubt ist, hat die mechanische Beikrautregulierung einen hohen Stellenwert. Zusätzlich werden häufig vorbeugende Maßnahmen, wie eine weite Fruchtfolge, eine enge Reihenweite und eine hohe Aussaatstärke angewandt. Dennoch besteht die Möglichkeit, dass diese Maßnahmen unter Umständen nicht ausreichenden Erfolg erzielen. Die Etablierung von Untersaaten kann durch Konkurrenz um Wachstumsressourcen zur Unterdrückung von Beikräutern beitragen, vor allem zum Zeitpunkt, wenn keine mechanische Beikrautregulierung... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2019 |
URL: http://orgprints.org/36094/1/Beitrag_164_final_a.pdf |
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| Rasmussen, I.A.; Askegaard, M.; Olesen, J.E.. |
| In long-term organic crop rotation experiments for cereal production, stubble cultivation to control perennial weeds increased nitrogen leaching compared to catch crops grown after harvest. Stubble cultivation contributed to the control of Elymus repens on a sandy soil, but not to the control of Cirsium arvense on a loamy soil. Manure application had a tendency to decrease E. repens density in one rotation at the sandy soil. Grass-clover green manure decreased C. arvense in the succeeding crops. Despite high infestations of perennial weeds, yields were at the same level with as without stubble cultivation. The results point to an important dilemma in organic farming: should the farmer control perennial weeds in the stubble at the expense of losing nitrogen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2005 |
URL: http://orgprints.org/6072/1/6072a.pdf |
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| Dibet, Audrey; Hauggaard-Nielsen, Henrik; Kasyanova, Elena; Ruske, Rachel; Gooding, Mike; Pristeri, Aurelio; Monti, Michele; Dahlmann, Christoph; von Fragstein, Peter; Ambus, Per; Jensen, Erik; Crozat, Yves. |
| Two pea-barley intercropping strategies were compared with respective sole crops for their capacity to reduce weeds. Crops were grown under organic conditions without mechanical weeding. Field trials were carried out during three years throughout Europe. Although crops were tested under diverse soil and climate conditions, in the presence of different weed species and varying weed biomass, it appeared in all experimental sites that weeds were better controlled in barley sole crop or in intercrops than in pea sole crop. Differences in the degree of weed control between crop treatments were already visible at flowering and sometimes increased until maturity. It is interesting to note that the substitutive and additive designs obtained similar results. The... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/7452/1/organic_congress_Dibet_Intercrop.pdf |
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| Det grovfoder som idag används till nöt består framförallt av olika arter av gräs och klöver från fleråriga vallar. Baljväxterna i vallen fixerar luftkväve och bidrar därigenom med ett nödvändigt näringstillskott också till efterföljande grödor. För en ekologisk lantbrukare är det mycket fördelaktigt, både ur närings- och fodersynpunkt, att även ettåriga kvävefixerande grödor kan ingå i växtföljden. Genom samodling av spannmål och trindsäd (t.ex. ärter) för helsädesensilering kan hela plantan skördas vid ett och samma tillfälle samtidigt som ett energi- och proteinrikt foder fås. Trots att odling av spannmålsgrödor för helsädesensilering varit relativt vanlig i t.ex. Danmark har det varit ovanligt inom svenskt, konventionellt... |
| Tipo: Project description |
Palavras-chave: Pasture and forage crops Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2023 |
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| Fischer, Jenny; Böhm, Herwart. |
| Da eine mechanische Unkrautbekämpfung nach dem Auflaufen der Bohnen nur schwer möglich ist, haben wir untersucht, ob es möglich ist Untersaaten in Mais-Bohnen-Gemengen zu etablieren. Dazu wurden zwei Untersaatmischungen, sowohl in Mais-Reinsaat als auch in zwei Gemengevarianten mit Feuerbohnen (Phaseolus coccineus, cv. Preisgewinner) bzw. Stangenbohnen (Phaseolus vulgaris, cv. Tarbais) getestet. Als Kontrollvarianten wurden Parzellen ohne Untersaat geprüft. Die Untersaatmischungen bestanden aus Welschem Weidelgras (cv. Gersimi, Aussaatdichte: 15 kg ha-1), in Kombination mit Erdklee (cv. Seaton Park, Aussaatdichte: 30 kg ha-1) in US1 und Futterchicoree (cv. Puna II, Aussaatdichte 7,5 kg ha-1) in US2. Zum Zeitpunkt der Maisblüte (BBCH65) wurden der... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management. |
| Ano: 2019 |
URL: http://orgprints.org/36203/1/Beitrag_276_final_a.pdf |
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| Registros recuperados: 14 | |
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