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| Registros recuperados: 641 | |
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| Paull, John. |
| This year marks a centenary of the synthetic fertilizer industry. German chemists, Fritz Haber and Carl Bosch, in 1909 demonstrated their industrial process for the manufacture of ammonia. The achievement won them accolades including Nobel Prizes. The output of their Haber-Bosch process can be used for either peace or war, agriculture or munitions, and the rapid adoption by Germany of this industrial process is credited with prolonging WW1. Most of the synthetic nitrogenous fertilizer of the past century, and right up to the present, has been manufactured using the Haber-Bosch process. The use of synthetic fertilizers has led to significant negative environmental outcomes. Rudolf Steiner was an early voice against chemical agriculture. Steiner's... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects; History of organics; Switzerland; Farming Systems; Farm nutrient management; Germany; Europe. |
| Ano: 2009 |
URL: http://orgprints.org/15797/1/15797.pdf |
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| Ersöz, Vehbi. |
| Farming since 1983, Vehbi Ersoz always thought there were some problems with the conventional farming methods. Using a different pesticide for each varmint and a different fertilizer for each missing substance in the soil made him question the function and procedures in conventional agriculture. Favoring a more holistic perspective in agriculture, he tried many methods to enrich the soil and increase the soil microorganisms, which in turn do the actual work. In his region he brought many leading and innovative techniques to life. Some of them are greenhouse farming, organic farming, biodynamic agriculture and Shumei method of agriculture. As a side benefit of applying many different techniques, he discovered that methods applied in one philosophy, may in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm economics; Networks and ownership; Biodiversity and ecosystem services; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23773/7/23773.pdf |
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| Oelofse, Myles; Høgh-Jensen, Henning; de Abreu, L.S.; de Almeira, G.F.; Hui, Q.Y.; de Neergaard, Andreas. |
| Increased demand for certified organic products has led to an increase in the number of certified organic farms in developing countries. Knowledge of farmer nutrient management practices on certified organic farms in developing countries is limited. Thus, the aim of this study was to investigate the impact of the adoption of certified organic agriculture on farm nutrient flows and nutrient budgets, and evaluate to which degree organic farms comply with organic principles relating to nutrient management. The study is based on five case studies of different types of certified organic farming systems in Brazil, Egypt and China. Farm nutrient flows and nutrient budgets for nitrogen, phosphorous and potassium were created for each farm. Four of the five... |
| Tipo: Journal paper |
Palavras-chave: Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/18298/1/18298.pdf |
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| P.S., Hooda; M., Moynagh; I.F., Svoboda; H.A., Anderson. |
| Nitrate leaching losses from intensively managed monoculture grass and grass-clover pastures were measured during 1994-96 at a long-term experimental farm in south-west Scotland. Field-size lysimeter plots were established in 1993 on the existing pastures on a silty clay loam non-calcareous gley. No fertilizer-N was applied to the grass-clover, while the monoculture grass was fertilized with c.240 kg N ha-1 year-1, but both swards received 2-3 cattle slurry applications annually (120-390 kg total N ha-1 year-1). The pastures supported 2-3 cuts for silage conservation, and were grazed by dairy cattle and stocked with sheep during the winter months. Initially, leachate nitrate concentrations from the fertilized grass were considerably larger than those... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Farm nutrient management. |
| Ano: 1998 |
URL: http://orgprints.org/6175/1/Younie2002Effect.pdf |
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| Tabaglio, Prof. Vincenzo; Gavazzi, Dott. Carolina; Nervo, Dott. Giuseppe. |
| A four-year field trial (2004-2007) was carried out to compare performances of organic and conventional farming systems in the Po Valley (Northern Italy). Four vegetable crops were grown in the sequence: 2004 – processing tomato; 2005 – bean followed by savoy cabbage; 2006 – processing tomato; and 2007 – zucchini. The experimental design was a split-plot with four replicates, the management system being the main factor (OF, organic farming vs. CF, conventional farming) with the rate of nitrogen fertilisation as the secondary factor. N efficiency of the organic fertilizers was assumed as being 50-75%). In all four of the years studied, the two farming systems did not show significant differences in marketable yields for any vegetable crops. The reduction in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Farm nutrient management. |
| Ano: 2008 |
URL: http://orgprints.org/11502/1/TABAGLIO_11502_ed.doc |
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| OKUR, Nur; KAYIKÇIOĞLU, Hüsnü; ATEŞ, Fadime; YAĞMUR, Bülent. |
| Soil chemical and microbial parameters are commonly used as soil quality indicators to evaluate sustainable land management in agroecosystems. The objective of this research was to evaluate the impact of organic and conventional management strategies on biological,chemicalandyieldparametersinvineyards(Vitisviniferacv.Sultaniseedless). Organic plots received a mixture of barley, vetch and broad bean (25þ35 þ75kg seed ha21) as green manure, and farmyard manure (15t ha21) every year. Inorganic fertilizers (NPK)andpesticideswereusedintheconventionalmanagedvineyards.Conventionaland mulch tillage methods were used in conventional and organic plots, respectively. Microbiological and chemical soil properties were determined in the soil samples which... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Nutrient turnover; Farm nutrient management. |
| Ano: 2015 |
URL: http://orgprints.org/31092/1/NUR%20OKUR-ORTAK%20MAMAKLE.pdf |
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| Pedersen, Anders; Stoumann Jensen, Lars; Thorup-Kristensen, Kristian. |
| The use of crops and catch crops with deep rooting can strongly improve the possibility of retaining nitrate-N that will otherwise be leached to the deeper soil layers and end up in the surrounding environment. But will it always be an advantage for the farmer to grow a catch crop? This will depend on factors such as soil mineral nitrogen level, soil water holding capacity, winter precipitation, rooting depth and N demand of the scceeding crop. These factors interact, and it can be very difficult for farmers or advisors to use this information to decide whether growing a catch crop will be beneficial. To analyse the effect of catch crops under different Danish soil and precipitation conditions, we used the soil, plant and atmosphere model Daisy. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Post harvest management and techniques; Crop combinations and interactions; Farm nutrient management; Soil quality. |
| Ano: 2005 |
URL: http://orgprints.org/7831/1/7831.pdf |
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| Sarma, Pallab; Saikia, Pinki; Baruah, Tapan. |
| The present study was conducted at the Dryland Technology Park ,All India Coordinated Research Project for Dryland Agriculture, Biswanath Chariali Center, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, District sonitpur Assam, India during 2012 -2013 with the objective to find out the efficiency of the low cost vermicomposting unit as compared to conventional units involving higher cost of construction. The experiment was laid out in a randomized block design (RBD) with 4 treatments i.e T1: Vermicomposting with Perionyx excavates in concrete pits (Control) with dimension 2.5 m(L) X 0.91 m (B) X 0.91 m(D),T2: Vermicomposting with Perionyx excavates in low cost vermicomposting unit with dimension of 2.5 m(L) X 0.91 m... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Technology assessment; Biodiversity and ecosystem services; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23720/1/23720_MM.pdf |
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| PICCIN, R.; KAMINSKI, J.; CASALI, C.A.; CALEGARI, A.; GEBERT, F.H.; SARTORI, R.J.B.; GUBIANI, E.; ROSSATO, L.F.R.. |
| O sistema de manejo pode afetar a disponibilidade de nutrientes para as plantas, em decorrência do sistema de rotação de culturas e da quantidade de resíduo vegetal presente na superfície do solo. O objetivo deste trabalho foi avaliar a quantidade de nitrogênio (N) e fósforo (P) acumulados no tecido vegetal de aveia preta, trigo, centeio, ervilhaca, nabo e tremoço azul, além de verificar seu estado nutricional de N e P. O experimento esta instalado no Instituto Agronômico do Paraná (IAPAR) em Pato Branco, Paraná, em um Latossolo Vermelho aluminoférrico. Em maio de 2011 os tratamentos foram semeados, sendo seis plantas de cobertura: trigo, aveia preta, centeio, ervilhaca, nabo forrageiro e tremoço azul cultivados sob Sistema Plantio Direto (SPD) e Sistema... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Soil tillage; Greenhouses and coverings; Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/29926/1/2012%20-%20Piccin%20-%20Fertbio.pdf |
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| Chatterjee, Ashis Kumar; Barik, Arun Kumar; De, Gopal Chandra; Dolui, Ajit Kumar; Mazumdar, Debasis; Datta, Anupam; Saha, Susmita; Bera, Ranjan; Seal, Antara. |
| The effectivity of Inhana Rational Farming (IRF) Technology towards energization of plant physiological functioning was evaluated in comparison to other organic packages of Practice under FAO-CFC-TBI Project at Maud Tea Estate, Dibrugarh, Assam, India during 2008 to 2013. The study area lies in 27.26. N latitude and 95.12 E longitude covering a total area of 154.58 ha area with level to nearly level landscape. The experiment was laid down as per randomized block design (RBD) with 8 treatments replicated 3 times. The treatments included available two organic methods viz. Biodynamic Farming (BD) and Inhana Rational Farming (IRF) (developed by Dr. P. Das Biswas, Founder, Inhana Biosciences, Kolkata) as well as organic inputs viz. vermicompost,... |
| Tipo: Journal paper |
Palavras-chave: Soil; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/26729/1/Inhana%20Rational%20Farming%201.pdf |
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| Martini, Luiz Carlos Pittol; Trentini, Élen Cristin. |
| O trabalho apresenta e discute a questão da proteção de zonas ripárias em áreas agrícolas do Sul do Brasil, em especial no Estado de Santa Catarina, em que predomina agricultura familiar praticada em pequenas propriedades. As exigências legais determinadas pelo Código Florestal brasileiro de 1965 são apresentadas frente às limitações para atendimento da lei impostas por fatores culturais, do meio físico e do tamanho das propriedades agrícolas. Para ilustração do problema, são confrontadas as duas correntes preponderantes no debate a respeito da utilização de áreas ripárias em Santa Catarina: aplicação dos dispositivos legais existentes versus flexibilização da lei para atender usos atuais em áreas de preservação permanente. |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farming Systems; Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/22756/1/Martini_Agricultura.pdf |
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| Gonçalves, Alexandre. |
| A produção de alimentos orgânicos é uma atividade que vem sendo desenvolvida por agricultores familiares de diferentes regiões do Brasil. A comercialização desses produtos tem especificidades, é composta por diferentes canais e um sistema de certificação dos produtos. A produção e certificação orgânica formam uma rede que articula pontos localizados em diferentes partes do mundo. Os pressupostos ligados a produção orgânica envolvem aspectos econômicos, ambientais e sociais. Através deste estudo procurou-se compreender como os agricultores de Poço Fundo - Minas Gerias percebem e relacionam-se com a produção e comercialização de alimentos orgânicos. Para isto, utilizou-se um referencial teórico que mantém interfaces com diferentes disciplinas, como... |
| Tipo: Thesis |
Palavras-chave: Farm economics; Farming Systems; Social aspects; Farm nutrient management. |
| Ano: 2003 |
URL: http://orgprints.org/24844/1/Gon%C3%A7alves_Agroecologia.pdf |
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| Anglade, J.; Billen, G.; Garnier, J.. |
| This work suggests that Soil Surface Balance is a robust indicator to compare the performances of organic agriculture with those of conventional agriculture, even strictly following the rules of rational and optimised application of fertilisers. The results of long term nitrogen budget calculation brought us to seriously reconsider the relevance of the need to increase crop yields, and more broadly to reconsider cropping patterns and production systems. In terms of policy levers for mitigating nitrogen contamination of water resources, only the shift to organic farming provides a possible way to reconcile agricultural production and water quality. Further, this view points out the need for specific measures to encourage more mixed farming approach to... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24519/1/24519.pdf |
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| Registros recuperados: 641 | |
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