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| Registros recuperados: 683 | |
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| Hansen, Sissel; Bergslid, Ildri (Rose) Kristine. |
| I denne rapporten presenteres seks gårder som viser at det er mulig å forene god økonomi med en miljømessig bærekraftig produksjon, men økonomien var best på de største gårdene. Felles for alle gårdene er næringsrik jord med god jordstruktur og god drenering, fokus på agronomi og godt husdyrstell. Dette resulterte i gode avlinger, god utnytting av tilførte næringsstoff, moderat bruk av energi og moderate utslipp av klimagasser. Fra observasjoner på disse gårdene og diskusjon på arbeidsseminar med gårdbrukerne, prosjektgruppe og inviterte gjester kan vi tipse om noen tiltak for miljøvennlig melkeproduksjon: god drenering, lite kjøring på våt jord, utføre jordarbeiding, gjødsling og høsting straks været og jorda er egnet, slepeslange med stripespreder i... |
| Tipo: Report |
Palavras-chave: Farm economics; Air and water emissions; Buildings and machinery. |
| Ano: 2018 |
URL: http://orgprints.org/33649/1/NIBIO_RAPPORT_2018_4_96.pdf_sequence%3D2%26isAllowed%3Dy |
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| Znaor, Darko. |
| Introduction Most agricultural operations, such as soil tillage, manuring, grazing, and irrigation, pose a serious threat to water quality. Agriculture is a heavy water user and a serious water polluter (nutrients, pesticides, salts, pathogens, heavy metals, oxygen-depleting and radioactive substances, etc.). In addition, agriculture threatens water habitats. The UN “Convention for the Protection and Use of Transboundary Watercourses and International Lakes” ratified at Helsinki in 1992 obliges the signatory countries to further prevent, control and reduce water pollution from point and non-point sources. The implementation of the Convention is co-ordinated by the UN Economic Commission for Europe. In October 1999, this organisation commissioned a study... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm economics; Farming Systems; Crop husbandry; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Policy environments and social economy; Environmental aspects; Farm nutrient management; Knowledge management. |
| Ano: 2000 |
URL: http://orgprints.org/26414/1/books.jpg |
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| Hüppi, Roman; Felber, Raphael; Krauss, Maike; Six, Johan; Leifeld, Jens; Fuß, Roland. |
| The static chamber approach is often used for greenhouse gas (GHG) flux measurements, whereby the flux is deduced from the increase of species concentration after closing the chamber. Since this increase changes diffusion gradients between chamber air and soil air, a nonlinear increase is expected. Lateral gas flow and leakages also contribute to non linearity. Several models have been suggested to account for this non linearity, the most recent being the Hutchinson±Mosier regression model (HMR). However, the practical application of these models is challenging because the researcher needs to decide for each flux whether a nonlinear fit is appropriate or exaggerates flux estimates due to measurement artifacts. In the latter case, a flux estimate from the... |
| Tipo: Journal paper |
Palavras-chave: Specific methods; Air and water emissions. |
| Ano: 2018 |
URL: http://orgprints.org/34683/1/hueppi_etal_2018_PlosOne_Vol13_Issue7-p1-17.pdf |
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| Registros recuperados: 683 | |
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