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Coltivare senza aratro - giova al suolo e al clima Organic Eprints
Krauss, Maike.
Un’agricoltrice che rinuncia all’aratro può generare un arricchimento di humus e più protezione del clima. Perché il metodo funzioni è però necessario un vasto sapere nell’ambito.
Tipo: Newspaper or magazine article Palavras-chave: Nutrient turnover; Soil tillage; Air and water emissions.
Ano: 2017 URL: http://orgprints.org/32228/1/Bioattualit%C3%A0_6_2017_M.Krauss.pdf
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Combined energy and feed production by thermophilic digestion of manure, grass and maize silage Organic Eprints
Falconi, S; Møller, Henrik B.; Ward, A..
By anaerobic digestion of crops and manure it is possible to produce energy, organic fertilizers and good quality feed with a high content of amino acids. This can be one solution to solve the problems concerning the competition between food and energy crops. At the same time, the production of energy by anaerobic digestion limits the use of fossil fuels. In this study the productive performance of maize and grass silage in terms of biogas and CH4 yield was analysed. The variation of amino acids content of these crops and of cattle and pig manure by anaerobic digestion was studied also.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2009 URL: http://orgprints.org/18995/1/Poster_Sebastiano_Aljw4.ppt
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Comment les fermes bio protègent le climat Organic Eprints
Gattinger, Andreas; Oehen, Bernadette.
Les producteurs et productrices bio contribuent depuis longtemps à la protection du climat. De nombreuses directives de Bio Suisse vont dans cette direction: Interdiction des transports aériens, limitation des concentrés, interdiction des engrais de synthèse etc. Cette fiche technique montre les interactions entre le changement climatique et l'agriculture et présente des mesures supplémentaires pour diminuer les émissions de gaz à effet de serre dues aux entreprises agricoles biologiques.
Tipo: Book Palavras-chave: Air and water emissions.
Ano: 2013 URL: http://orgprints.org/25263/1/1579-climat.pdf
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Comment on "Searchinger et al. (2018), Assessing the efficiency of changes in land use for mitigating climate change (Nature 564: 249)" Organic Eprints
Müller, Adrian.
Some days ago, the article from Searchinger et al. 2018 has been published and caused quite some discussion in the media, basically being reported to show that organic agriculture is bad for the climate. In the following, Adrian Müller (FiBL) present some fastly written compilation of thoughts on this article and this claim from the media that reported on it.
Tipo: Other Palavras-chave: "Organics" in general; Air and water emissions.
Ano: 2018 URL: http://orgprints.org/34496/1/mueller-2018-Comment_Searchinger-etal-2018-Nature564-249_18_12_2018.pdf
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Comparative analysis of conventional and organic farming systems: Nitrogen surpluses and nitrogen losses Organic Eprints
Kelm, Dr. Michael; Loges, Dr. Ralf; Taube, Prof. Dr. Friedhelm.
Nutrient management is a key factor for both economic viability and environmental performance of farming systems. On 32 representative conventional and organic farms in Northern Germany, nutrient management was analyzed in the interdisciplinary monitoring project “COMPASS”. Organic farms had significantly lower nitrogen (N) surpluses compared with conventional farms. The majority of organic farms had very low or even negative N surpluses, indicating insufficient N supply in the cropping system. Nitrogen leaching, however, was too high in many cases on both conventional and organic farms. Strategies for a more targeted nutrient supply in organic farming need to be developed and implemented.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2008 URL: http://orgprints.org/11679/1/11679.pdf
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COMPARATIVE STUDY ON RUNOFF N, P FROM ORGANIC AND CONVENTIONAL RICE-WHEAT ROTATION FIELD IN THE TAI LAKE REGION IN CHINA Organic Eprints
Xi, Yunguan.
The runoff N, P from organic and conventional rice-wheat rotation field in terms of equal N input was studied through field plot test in Tai lake region. The results showed that in the rice-wheat rotation field in Tai lake region the runoff TN from organic and conventional field was 56.15kg/hm2 and 77.90kg/hm2 respectively, 27.9% less from organic field; for the runoff N coefficient, in organic field, rice season it’s 7.19% and wheat season 9.12%, in conventional field, rice season it’s 9.74% and wheat season 16.75%; the runoff TP from organic and conventional field was 2.38 kg/hm2 and 1.03 kg/hm2, respectively, 131.06 % more from organic field; for the runoff P coefficient, in organic field, rice season it’s 0.84 % and wheat season 0.14%, in conventional...
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2014 URL: http://orgprints.org/23637/1/23637-final-xi-China-1402010_MM.pdf
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Comparison of organic and conventional dairy farm economic and environmental performances throughout North West Europe Organic Eprints
Grignard, A.; Stilmant, D.; Oenema, J; Tirard, S.; Debruyne, L.; Hennart, S.; Jamar, D.; Boonen, J..
From an environmental point of view, organic farming (OF) systems have been identified as beneficial thanks to a system allowing fewer losses of nitrogen (N) per ha and lower green house gases (GHG) emissions per ha and per ton of milk (TM). From an economic point of view, milk coming from these OF systems is sold at a higher prize. However, incomes provided by both systems are similar (for similar amount of milk produced). This may be explained by higher input costs per unit of product for OF systems and by more incomes coming from sold crops for conventional farming (CF) systems. Therefore, on the one hand CF systems may improve their environmental performances by reducing the amount of inputs brought into the system, for example through a better...
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Farm economics; Air and water emissions.
Ano: 2013 URL: http://orgprints.org/24570/1/24570.pdf
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Comparison of the environmental performance of different treatment scenarios for the main phosphorus recycling sources Organic Eprints
Hörtenhuber, Stefan Josef; Theurl, Michaela Clarissa; Möller, Kurt.
Efficient phosphorus (P) recycling from rural and urban areas is becoming an increasing issue due to the scarcity of natural P deposits. Based on a life cycle assessment (LCA), we analyzed the environmental performance of 17 different P supply and recycling approaches from urban wastes, biosolids and slaughterhouse wastes compared with the two conventional inorganic fertilizers phosphate rock and triple superphosphate. The results show that many recycled P fertilizers (RPFs; e.g., digestates from urban organic wastes, biosolids and their ashes, meat and bone meal (MBM) and its recycling products) are competitive in terms of LCA results compared with conventional P fertilizers. For each of the P recycling sources, one or more treatment options were...
Tipo: Journal paper Palavras-chave: Composting and manuring; Air and water emissions; Evaluation of inputs.
Ano: 2018 URL: http://orgprints.org/32914/1/H%C3%B6rtenhuber2018-comparison_of_the_environmental_performance_of_different_treatment_scenarios_for_the_main_phosphorus_recycling_sources.pdf
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Consequences of agro-biofuel production for greenhouse gas emissions Organic Eprints
Carter, Mette S.; Johansen, Anders; Haugaard-Nielsen, Henrik; Ambus, Per.
The objective of the study was to examine the effect on N2O and CH4 emissions when residues from bio-energy production are recycling as organic fertilizer for a maize energy crop. The study showed that the N2O emission associated with the cultivation of the maize crop offset a considerable faction of the fossil CO2, which was avoided by producing the biofuels.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2008 URL: http://orgprints.org/15844/1/15844.pdf
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Consumer needs information about environmental impact of foods Organic Eprints
Laurinen, Jaakko.
Raisio is Finnish food and feed company. Raisio has equipped its Elovena oats with a label that indicates the CO2 emissions of the product from cultivation through processing to store warehouse.
Tipo: Conference paper, poster, etc. Palavras-chave: Air and water emissions.
Ano: 2008 URL: http://orgprints.org/15119/1/njf2.pdf
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”Consumers’ Understandings and Perceptions of Danish Organic Aquaculture – A Mixed Method Study” Organic Eprints
Zølner, Anette; Ricorico, Marie; Budhathoki, Mausam; Froesch, Mel; Nielsen, Signe.
Danish organic aquaculture is growing rapidly, which is not reflected in the consumer demand for these products in Denmark. Therefore, a mixed method study was conducted with the main purpose to investigate consumers’ understandings and perceptions of Danish organic aquaculture. Convenience sampling was employed to recruit 126 participants for a web-based survey and nine were further recruited for in-depth focus group discussion. The findings from this study shows that organic fish is often mistaken for wild caught fish. Factors including price, labelling, availability & information, reputation of the farmed fish, and cooking skills were identified to be influencing consumers. Despite price being a barrier, the results also showed that the majority of...
Tipo: Report Palavras-chave: Farm economics; Social aspects; Air and water emissions.
Ano: 2018 URL: http://orgprints.org/33698/1/D6.4.1_%20Innovative%20development_Consumer%20perceptions.pdf
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Contribution of nitrification and denitrification to N2O emissions from urine patches Organic Eprints
Carter, Mette S..
Urine deposition by grazing livestock causes an immediate increase in nitrous oxide (N2O) emissions, but the responsible mechanisms are not well understood. A nitrogen-15 (15N) labelling study was conducted in an organic grass-clover sward to examine the initial effect of urine on the rates and N2O loss ratio of nitrification (i.e. moles of N2O-N produced per moles of nitrate produced) and denitrification (i.e. moles of N2O produced per moles of N2O + N2 produced). The effect of artificial urine (52.9 g N m-2) and ammonium solution (52.9 g N m-2) was examined in separate experiments at 45 and 35% water-filled pore space (WFPS), respectively, and in each experiment a water control was included. The N2O loss derived from nitrification or denitrification was...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Air and water emissions; Composting and manuring.
Ano: 2007 URL: http://orgprints.org/14150/1/14150.pdf
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Contribution of organic agriculture to macro-economic and environmental performance of the countries with economies in transition Organic Eprints
Znaor, Darko.
The current agricultural operations cause a number of environmental and socio-economic problems and raise substantial ethical doubts. The call for the shift of the present agricultural paradigm and practices is acknowledged all across Europe. Ten years after the economic transition, the agricultural sector in Central and Eastern Europe (CEE) still undergoes essential transformation. In spite of the policy efforts to restore the pre 90 inputs, low-external input agriculture prevails in most CEE countries. The transition to a market economy caused a huge price disparity between the agricultural commodities and agricultural inputs. The high prices of agri-chemicals and low prices of agricultural produce forced farmers to reduce agricultural inputs or refrain...
Tipo: Journal paper Palavras-chave: Production systems; Farm economics; Air and water emissions; Policy environments and social economy; Research methodology and philosophy.
Ano: 2002 URL: http://orgprints.org/26405/7/26405.pdf
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Contributions of organic farming to a sustainable environment Organic Eprints
Pfiffner, Lukas; Häring, Anna; Dabbert, Stephan; Stolze, Matthias; Piorr, A..
Summary and Conclusions For each indicator organic farming is ranked at least equal to conventional farming, while in the majority of environmental indicators organic farming performs better or much better. In two cases, the subjective confidence interval could allow conventional farming to appear as the preferable system (partly due to the lack of evident data). However, when considering the aggregation level of the indicator categories, the analysis becomes more uniform. With the exception of climate and air, organic farming performs better than conventional farming in all categories. None of the indicator categories showed that organic farming performed worse. A summary assessment of all indicator categories was not carried out in the table, however,...
Tipo: Conference paper, poster, etc. Palavras-chave: Landscape and recreation; Farm economics; Policy environments and social economy; Biodiversity and ecosystem services; Air and water emissions.
Ano: 2001 URL: http://orgprints.org/2943/1/pfiffner%2D2001%2Dproceedings%2Dcopenhagen.pdf
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Controlled traffic farming increased crop yield, root growth, and nitrogen supply at two organic vegetable farms Organic Eprints
Hefner, M.; Labouriau, R.; Nørremark, Michael; Kristensen, Hanne Lakkenborg.
Increased farm machinery weight in agricultural production results in soil compaction. Controlled traffic farming (CTF) restricts traffic to permanent lanes, thereby creating traffic free beds for crop production. Field experiments were conducted at two organic vegetable farms in Denmark, on a sandy loam (2013–2016) and on coarse sand (2013–2015) to investigate CTF effects compared with random traffic farming (RTF) on vegetable yield, root growth, and soil mineral nitrogen (N). Root growth was measured using minirhizotrons. White cabbage, potato, and beetroot yield increased by 27%, 70% and 42%, respectively, in CTF compared with RTF in 2015 and winter squash indicated a yield increase of 43% on sandy loam in 2016. White cabbage (2015) and potato, beetroot...
Tipo: Journal paper Palavras-chave: Soil quality; Crop combinations and interactions; Nutrient turnover; Soil tillage; Air and water emissions; Vegetables; Root crops.
Ano: 2019 URL: http://orgprints.org/35456/1/Hefner%20et%20al%202019%20Controlled%20traffic%20farming.pdf
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Controlled traffic farming increases root growth, crop and soil nitrogen in vegetable cropping systems Organic Eprints
Hefner, M.; Labouriau, R.; Nørremark, M.; Kristensen, H. L..
Results from field trials on sandy and sandy loam of controlled traffic farming
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Crop combinations and interactions; Nutrient turnover; Soil tillage; Air and water emissions; Vegetables; Root crops.
Ano: 2018 URL: http://orgprints.org/35459/1/20th%2BNitrogen%2BWorkshop_2018_Final%2BProceedings%287%29.pdf
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Cost and energy evaluation of organic cauliflower in sole crop and living mulch systems Organic Eprints
Ortolani, Livia; Kristensen, Hanne L.; Campanelli, Gabriele; Bavec, Martina; Bavec, Franc; von Fragstein, Peter; Bergmam, Astrid; Leteo, Fabrizio; Canali, Stefano.
This paper presents the findings of an assessment aimed to evaluate, in terms of cost and energy consumption, the introduction of living mulches in different organic vegetable systems producing cauliflower. The study was carried out in three European countries (IT, SLO and DK) in the frame of the InterVeg project (Core Organic II). The achievements demonstrated that, in economic terms, farmers’ choice of a specific technique, like living mulch instead of sole cropping, can be influenced by two key elements: human labor and fossil fuel consumption. Different organic systems have a different proportion in using the two inputs depending on the specific farm strategy.
Tipo: Conference paper, poster, etc. Palavras-chave: Farm economics; Technology assessment; Air and water emissions; Policy environments and social economy; Weed management; Denmark; Italy; Europe.
Ano: 2014 URL: http://orgprints.org/23713/1/23713%20Ortolani%20et%20al.%20_ISOFAR%202014_MM.pdf
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Crop yields and supply of nitrogen compared in conventional and organic farming systems Organic Eprints
Alaru, Maarika; Talgre, Liina; Eremeev, Viacheslav; Tein, Berit; Luik, Anne; Nemvalts, Anu; Loit, Evelin.
The aim of organic agriculture is to produce food of high nutritional quality in sufficient quantity. Field experiments were conducted to evaluate the effect of organic and conventional growing systems on (i) total amounts and sup-ply of N taken up or applied to plants during a five year crop cycle period and (ii) crops total dry matter (DM) yield obtained during same period. The total DM yields from the organic treatments were 25–33% smaller than from the conventional treatments. The ratio of N output/N input was significantly the smallest in the organic treatment with cattle manure, where only 37% of all supplied N was used by plants during the crop cycle period. The organic fertiliser with faster mineralisation rate and splitting the application of...
Tipo: Journal paper Palavras-chave: Soil quality; Soil tillage; Air and water emissions.
Ano: 2014 URL: http://orgprints.org/31287/1/alaru-etal-2014-Agri_FoodSci-Vol23-issue4-p317-326.pdf
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Cultiver sans labourer: Bon pour le sol, bon pour le climat Organic Eprints
Krauss, Maike.
Quand un agriculteur bio renonce au labour, cela permet de former davantage d’humus et de protéger le climat. Il faut cependant bien connaître son affaire pour que ça fonctionne dans la pratique.
Tipo: Newspaper or magazine article Palavras-chave: Nutrient turnover; Soil tillage; Air and water emissions.
Ano: 2017 URL: http://orgprints.org/32225/1/Bioactualit%C3%A9s_6_2017_M.Krauss.pdf
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Dairy cow defecation and urination frequency and spatial distribution in relation to time-limited grazing Organic Eprints
Oudshoorn, Frank; Kristensen, Troels; Nadimi, Esmaeil.
The objective of this paper was to investigate the effect of limited grazing time on urination and defecation frequency, spatial distribution of excrement in the paddock, and the resulting nitrogen balance at animal and field level. During a 6-week period in early summer, 60 Holstein Frisian dairy cows (31.0±5.4 kg ECM) were randomly allocated to three different treatments, with grazing at clover-grass pasture during daytime for 4, 6.5 or 9 h daily. Indoor feeding, with a mixture of roughage and concentrates (13% crude protein), was restricted for treatment 4 and 6.5 h to the amount the 9-h treatment could eat. Cows allowed grazing at pasture for 4 h moved more rapidly during pasture, moved longer distance per active hour and used a higher proportion of...
Tipo: Journal paper Palavras-chave: Dairy cattle; Air and water emissions.
Ano: 2008 URL: http://orgprints.org/13856/1/13856.pdf
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