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| Registros recuperados: 15 | |
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| Petersen, Maja Eline; Bertelsen, Inger. |
| The biggest challenge for achieving higher and more stable yields in organic plant breeding is linked to adequate nitrogen supply and the management of aggressive weeds. The RowCrop project has developed a row cultivation system with cereals and catch crops that enable weed control in rows of both crops. The cultivation system is composed of three elements: 1. Weed control in the rows of grain sown at 25 cm row spacing 2. Establishment of nitrogen fixing crops in between the rows at the last weed control 3. Weed control in the crop rows after harvest, in order to control perennial weeds. Weed control in the row in the main crop gives increased yield when: • The yield potential in the field is high • Weed pressure is high • Weed control in the row... |
| Tipo: Practice tool |
Palavras-chave: Soil; Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/36818/1/oe_18_3811_faktaark-Raekkedyrkning-af-korn-med-efterafgroede.pdf |
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| Petersen, Maja Eline; Bertelsen, Inger. |
| Row cultivation in cereals with nitrogen-fixing crops can improve nitrogen supply in the crop rotation, while reducing nitrogen leaching. Well-established and competitive catch crops are important, they can both supply a significant amount of nitrogen to the subsequent crops and compete against the weeds. There needs to be a balance between main and catch crops – competitive main crops require early establishment of the catch crop and/or larger row distance. In a less competitive main crop, row distance can be narrower and the catch crops should be sown later. Early harvest is important to get a competitive catch crop. Well established catch crops can increase the yield of the succeeding crop, corresponding to up to 50 kg nitrogen per hectare. Well... |
| Tipo: Practice tool |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Soil. |
| Ano: 2018 |
URL: http://orgprints.org/36825/1/Efterafgroedens_kvaelstoffiksering.pdf |
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| Petersen, Maja Eline. |
| The seed system has changed a lot over the past decades with the control over the seeds lying more and more in the hands of a few large companies and less in the hands of the farmers. This has affected the genetic diversity as well as the farmers’ rights. Nepal is a country with a high plant diversity. There is an increase in seeds imported to the country, especially hybrid seeds, which threatens the diversity and the seed sovereignty. Organic agriculture based on the four principles of health, ecology, fairness and care can help counteract this development and increase the seed sovereignty by being a natural driver of local seed development and the development and maintenance of seed diversity. |
| Tipo: Working paper |
Palavras-chave: "Organics" in general; Farming Systems; Environmental aspects. |
| Ano: 2014 |
URL: http://orgprints.org/27631/7/27631.pdf |
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| Registros recuperados: 15 | |
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