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| Registros recuperados: 4.506 | |
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| Fall, Nils; Emanuelson, Ulf. |
| Organic dairy farming is an expanding segment of the dairy sector where cow management differs from the conventional model in many respects. Thus, a comparative evaluation of disease and welfare status in organically and conventionally managed dairy cows is required. Assessment of milk yield, udder health and reproductive performance (RP) was done in 20 organically and 20 conventionally managed Swedish dairy herds. In accordance with earlier findings we confirmed lower milk yield in organic cows. Udder health and RP were chosen as indicators of animal health in view of their clinical relevance and the availability of appropriate data bases providing good background knowledge for further animal health assessment. No obvious differences were found in the... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2009 |
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| Soinne, Helena; Saarijärvi, Kirsi; Karppinen, Minna; Hartikainen, Helinä. |
| The objective of this study was to examine the effects of urine and dung additions on the phosphorus (P) chemistry of pasture land and to compare the sensitivity of two soil extraction methods in assessing the P-loading risk. In a field experiment, urine and dung were added to soil in amounts corresponding to single excrement portions and the soil samples, taken at certain intervals, were analysed for pHH2O, acid ammonium acetate extractable P (PAc) and water extractable total P (TPw), and molybdate reactive P (MRPw). Urine additions immediately increased soil pH and MRPw, but no such response was observed in PAc extraction due to the low pH (4.65) of the extractant enhancing the resorption of P. The PAc responded to the dunginduced increase in soil total... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2008 |
URL: http://orgprints.org/17079/1/soinne.pdf |
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| Aulrich, Karen; Molkentin, Joachim. |
| Der ständig wachsende Marktanteil ökologisch erzeugter Milch erfordert leistungsstarke und zuverlässige Methoden zur Herkunftssicherung der Milch. Die Zusammensetzung der Milch, speziell die Gehalte an ω3-Fettsäuren (FS) werden im Wesentlichen durch die Fütterung beeinflusst. Deshalb wurde die NIRS als mögliche Alternative zur Gaschromatographie (GC) für die quantitative Analyse der FS bewertet und ihre Eignung für die Unterscheidung von ökologisch und konventionell produzierter Milch geprüft. Um variable Effekte der Fütterung einschließlich saisonaler Effekte aufzuzeigen, wurden zwei konventionell und eine ökologisch erzeugte Markenmilch im zweiwöchigen Abstand über 18 Monate im Einzelhandel gekauft. Zusätzlich wurde im gleichen Intervall eine ökologisch... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Consumer issues. |
| Ano: 2009 |
URL: http://orgprints.org/17234/1/Aulrich_Molkentin_LBF%2DvTI__4_(2009)_301%2D308.pdf |
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| Nkurunziza, Libère; Andreasen, Christian; Liu, Fulai; Streibig, Jens Carl. |
| The aim of this study was to investigate the effect of controlled soil water deficits on sprouting and shoot growth of Canada thistle, coltsfoots and quackgrass. A gradient of soil water contents was created by establishing different densities of barley. The plants were harvested 14 days after watering was stopped. On Canada thistle and coltsfoots, relative water content (RWC) in leaves was measured prior to harvest and biomass of all weed shoots were recorded at harvest. In terms of shoot biomass and leaf RWC quackgrass was drought tolerant while coltsfoot was drought sensitive and Canada thistle was between the two. The barley cover crop could have had a competitive effect upon the growth of the weeds; the effect, however, was not detrimental compared to... |
| Tipo: Journal paper |
Palavras-chave: Weed management. |
| Ano: 2011 |
URL: http://orgprints.org/18363/1/Nkurunziza_Drought_Perennial_3.pdf |
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| Løes, Anne-Kristin; Øgaard, Anne Falk. |
| On five long-term organic dairy farms aiming at self-sufficiency with nutrients, soil concentrations of ammonium-acetate lactate extractable potassium (K-AL) and acid-soluble K was measured twice in topsoil (0-20 cm) and subsoil (20-40 cm) over periods of 6-14 years. Organic management had occurred for >9 years at the second sampling. On average there were most probably field level K-deficits. Even so, topsoil K-AL concentrations were medium high (65-155 mg K kg–1 soil), and did not decrease during the study period. However, for three farms, topsoil K-AL was approaching a minimum level determined by soil texture, where further decrease is slow. Subsoil K-AL concentrations were generally low (<65). The soils were mostly light-textured, and reserves of... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover Farm nutrient management Recycling; Balancing and resource management. |
| Ano: 2003 |
URL: http://orgprints.org/5244/1/jas_010_(loesogaard).pdf |
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| Borbélyné Dr. Hunyadi , Éva. |
| 2013. november 25-26-án Augsburgban rendezte meg a 2. Nemzetközi Szója Kongresszust a Duna Szója Egyesület (Verein Donau Soja. A téma iránti fokozott érdeklődést mutatta, hogy a konferenciára mintegy 300 résztvevő érkezett európai és tengerentúli országokból egyaránt. A Helmut Brunner bajor szakminiszter által megnyitott plenáris ülést követően párhuzamosan zajló fórumokon a szójatermesztést és feldolgozást érintő legfontosabb kérdésekről hallhattak előadásokat és folytathattak diskurzust a résztvevők. A fórumok témái a következők voltak: az európai szójatermesztés, az európai fehérjeellátás, a GMO mentesség tanúsítása és a biológiai alapok fejlesztése. |
| Tipo: Journal paper |
Palavras-chave: Education; Extension and communication. |
| Ano: 2014 |
URL: http://orgprints.org/26073/1/oMKI_20141.pdf |
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| Lynch, D.H.; Halberg, N.; Bhatta, G.D.. |
| Can organic agriculture elaborate a scientifically based, resource-efficien and agroecological approach to low-input farm management? This review examines the literature from temperate regions, with a particular emphasison Canadian and USstudies that relate to environmental and ecological impacts of organic agriculture with respect to (i )soil organic matter storage, (ii) soil quality/soil health, (iii) nutrient loading and risks of off-farm nutrient and agrochemical losses, (iv) biodiversity and (v) energy use and global warming potential. The context and implications of semi-arid conditions and low soil P levels, common to many organic farms in North America, and wide spread adoption of genetically engineered crops in conventional production, is also... |
| Tipo: Journal paper |
Palavras-chave: Social aspects; Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/20725/4/20725.pdf |
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| ÇETİNKAYA, Nedim; ATEŞ, Fadime. |
| The rapid increase in the development of world population and industrialization have brought many problems for human and environmental health. The widely use of chemicals in order to increase agricultural production is one of the main problems in this sense. To take into consideration this common problem, environmentally friendly production methods of organic farming as an alternative to conventional agriculture in different countries are put forward and accepted by both manufacturers and consumers, as well. In this study, the effects of different soil application forms and soil tillage techniques on the disease output of powdery mildew (Erysiphe necator) and grape yield in an organically managed vineyard with variety “Sultanina” were investigated. Soil... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems Soil tillage Crop health; Quality; Protection. |
| Ano: 2016 |
URL: http://orgprints.org/31088/1/1%20mak%2045-NEDIN%20HOCA%20ORT%20YAYIN.pdf |
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| Wagenaar, Jan-Paul; Langhout, Jos. |
| The introduction of suckling systems in organic dairy calf rearing has the potential to enhance animal welfare in terms of ‘natural living’ and to live up to consumers’ expectations about organic agriculture. This study describes the implications of suckling systems in a practical organic dairy context. Results show that farmers can successfully develop and implement a suckling system in calf rearing. The consumption of mothers’ milk resulted in high weaning weights at 3 months of age. No immediate animal health problems linked to suckling systems occurred. Compared with traditional bucket feeding of milk, suckling systems resulted in increased natural behaviour such as calf cow bonding, natural sucking behaviour and care-taking behaviour. Some farmers... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2007 |
URL: http://orgprints.org/17255/4/17255.pdf |
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| Jovchelevich, Pedro; Câmara, Francisco Luis Araújo. |
| O presente trabalho teve como objetivo avaliar a influência dos diversos ritmos da Lua sobre o rendimento de cenoura semeada em diferentes datas, sob as mesmas condições de manejo, em propriedade de agricultura familiar com manejo biodinâmico, em Botucatu-SP. Os tratamentos foram as datas de semeadura, que variaram de 5 de maio até 4 de junho em 2005, e de 25 de abril a 25 de maio, em 2006. A colheita ocorreu aos 82 dias após cada semeadura, sendo avaliadas a massa fresca de raízes e de folhas, e massa seca de raízes. Foi utilizada a metodologia de avaliação estatística do cálculo do Índice Estacional. Nos dois períodos avaliados, a variável massa seca de raízes foi a única que, no contraste entre médias, apresentou diferença significativa nos ritmos... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Vegetables. |
| Ano: 2008 |
URL: http://orgprints.org/27592/1/Jovchelevich_Influ%C3%AAncia.pdf |
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| Chongtham, Imam Raj; de Neergaard, Andreas; Pillot, Didier. |
| Organic agriculture in Uganda is developing at a fast pace and despite this trend Uganda is still unable to produce enough fresh and dry organic fruits mainly pineapple to meet the exporters demand. This current research investigated the strategies of farmers at production level by assessing the pros and cons of fruit growing, organic agriculture and fruit drying in order to understand the underlying causal factor for the low production of organic dry fruits in a major fruit producing district of Uganda. The study was carried out in two separate and distinctive areas; one which only produces and export fresh organic pineapple and the other which exports dried fruits (mainly pineapple and papaya). About 10 % of the farmers in the two study areas were... |
| Tipo: Journal paper |
Palavras-chave: Farm economics; Markets and trade; Produce chain management. |
| Ano: 2010 |
URL: http://orgprints.org/18490/1/18490.pdf |
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| Konvalina, Petr; Stehno, Zdenek; Moudry, Jan (Jr.). |
| The methodology takes the different ideotype of plant that´s suitable for the environment-friendly farming systems into account. The methodology is being tested at several varieties and species of genus Triticum L. (wheat ? winter wheat, spring wheat, landraces, conventional varieties and the varieties recommended for organic farming system, emmer wheat). The methodology is dividend into four part: morphological, biological, economic and quality characters. |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry Breeding; Genetics and propagation. |
| Ano: 2007 |
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| Cong, W.-F.; Suter, M.; Lüscher, A.; Eriksen, J.. |
| Grass-legume mixtures characterized by high productivity, efficient nitrogen (N) use and strong weed suppression were proposed to increase sustainability of grassland production. Adding competitive forbs to grassclover mixtures can be expected to further enhance the high productivity of grass-clover mixtures. This study investigates whether and to what extent adding forbs to a grass-clover mixture results in yield gains, and estimates the contributions of forb species (identity effect) and interactions with the grass-clover mixture (diversity effect) to these gains. It further examines the effectiveness of weed suppression in forb-containing grass-clover mixtures. Fifteen pure and mixed stands, all comprising the grass Lolium perenne L. and the legume... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Nutrient turnover. |
| Ano: 2018 |
URL: http://orgprints.org/34979/1/1-s2.0-S0167880918304006-main.pdf |
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| Gargoloff, Natalia Agustina; Abbona, Esteban Andres; Sarandón, Santiago Javier. |
| La existencia de una racionalidad ecológica implícita en el manejo de los recursos naturales em agricultores tradicionales, ha permitido la sustentabilidad de los agroecosistemas. Comprender la racionalidad ecológica en agricultores con características diferentes a la agricultura tradicional, podría contribuir a avanzar hacia una agricultura sustentable. Sin embargo, esto no es sencillo debido a la propia complejidad del término y la ausencia de una metodología que permita abordarla. En este contexto, se propone y valida una metodología para abordar la racionalidad ecológica en tres grupos de agricultores hortícolas del partido de La Plata, Argentina. La propuesta consta de ocho pasos: 1) definición del marco conceptual, 2) planteo de hipótesis, 3)... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Crop husbandry. |
| Ano: 2010 |
URL: http://orgprints.org/24979/1/Gargoloff_An%C3%A1lisis.pdf |
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| Registros recuperados: 4.506 | |
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