Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 640
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
A framework for assessing crop production from rotations Organic Eprints
Topp, Cairistiona F E; Doyle, Chris J; Watson, Christine A.
This report was presented at the UK Organic Research 2002 Conference of the Colloquium of Organic Researchers (COR). Organic farming systems rely on the management of biological cycles for the provision of nutrients, which are crucial to maximising the production from the system. Rotations based on the use of grass-legume leys are central to the concept of organic farming systems, because they have the potential to support both animal production, and a subsequent, exploitative, arable cropping phase. A major challenge in organic farming is managing the supply of nitrogen, since it has a key role in governing both productivity and environmental impact. Hence, within a rotational system, there is a need to understand the complex interactions that are...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farming Systems; Crop husbandry.
Ano: 2002 URL: http://orgprints.org/8295/1/topp_Framework_assessing_crop_production.pdf
Imagem não selecionada

Imprime registro no formato completo
A model analysis on nitrate leaching under different soil and climate conditions and use of catch crops Organic Eprints
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
Imagem não selecionada

Imprime registro no formato completo
A win-win for legume mixtures Organic Eprints
Döring, Thomas F.; Crowley, Oliver; Pearce, Helen; Storkey, Jonathan; Brown, Rob; Jones, Hannah.
The inter-relationship between food production and biodiversity is now well established. The ecosystem services provided by the organisms within the environment include, for example, nutrient cycling, pest regulation and pollination, to name but a few. However, perhaps the greatest challenge now facing agricultural production is to find ways of enhancing these ecosystem services, while at the same time increasing food production – particularly in light of food security issues. A range of farm and landscape management options include ‘setting aside’ land for wildlife. However, some proponents argue that such land should be used for food production. While the debate continues, there is no doubt that a large body of scientific evidence from the last three...
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions; Crop husbandry.
Ano: 2011 URL: http://orgprints.org/21906/1/2011.Doring%20et%20al.Org%20Farm%20108_LegLink.pdf
Imagem não selecionada

Imprime registro no formato completo
Åbent Hus: Forbedret udnyttelse af jord og ressourcer i økologiske dyrkningssystemer Organic Eprints
Kristensen, Helene.
Projektet SoilVeg handler om forbedret udnyttelse af jord og ressourcer i økologiske dyrkningssystemer for grøntsager med grønafgrøder. Der afprøves dyrkning af hvidkål i to nye dyrkningssystemer med reduceret jordbearbejdning. I det ene system plantes direkte ned i en tromlet vintergrønafgrøde uden anden jordbearbejdning, og her er det tanken at den tromlede biomasse dækker jorden og dermed holder ukrudt nede i løbet af sæsonen. I det andet system laves stribenedmuldning af grønafgrøden før plantning. De to nye systemer sammenlignes med almindelig nedmuldning og ingen forudgående grønafgrøde. Både vinterhestebønne, vinterært og vintervikke er blevet brugt som grønafgrøder og i blandinger med vinterrug. Disse forsøg kører ved Forskningscenter Årslev i 2016...
Tipo: Web product Palavras-chave: Soil quality; Crop combinations and interactions; Soil tillage; Air and water emissions; Vegetables; Biodiversity and ecosystem services; Weed management.
Ano: 2016 URL: http://orgprints.org/32030/1/index.html
Imagem não selecionada

Imprime registro no formato completo
Abschätzung der N-Freisetzung aus unterschiedlich bewirtschafteten Klee-, Kleegras- und Luzernebeständen im Verlauf nachfolgender Weißkohlkulturen und im zweiten Jahr nach Umbruch Organic Eprints
Laber, Hermann.
Mehrjährige Leguminosen(gras)bestände sind ein wesentliches Fruchtfolgeglied im ökologischen Landbau. Zur N-Fixierungsleistung und den N-Mengen in Aufwuchs und Wurzeln solcher Bestände liegen umfangreiche Literaturdaten vor, dagegen wurde die N-Freisetzung nach Umbruch dieser Bestände in situ bisher kaum untersucht. Ziel der über 3 Vegetationsperioden laufenden Untersuchung war es, die N-Freisetzung aus unterschiedlich bewirtschafteten Klee-, Kleegras- und Luzernebeständen (ein- bzw. 2-jährig, Futternutzung bzw. Grünbrache) bei Herbst- bzw. Frühjahrsumbruch zu untersuchen und diese Ergebnisse in ein einfaches Düngungs-Kalkulationsprogramm einfließen zu lassen. Dazu wurde nach dem Umbruch Lagerweißkohl angebaut. Als Kontrolle dienten Parzellen, die...
Tipo: Report Palavras-chave: Crop combinations and interactions; Vegetables; Composting and manuring.
Ano: 2007 URL: http://orgprints.org/13105/1/N%2DFreisetzung_Kleegras.pdf
Imagem não selecionada

Imprime registro no formato completo
Absorção de nutrientes e alterações químicas em Latossolos cultivados com plantas de cobertura em rotação com soja e milho. Organic Eprints
Borges, Wander Luis Barbosa; Freitas, Rogério Soares de; Mateus, Gustavo Pavan; Sá, Marco Eustáquio de; Alves, Marlene Cristina.
Os efeitos promovidos pelas plantas de cobertura nos atributos químicos do solo são bastante variáveis, dependendo de fatores como espécie utilizada, manejo dado à biomassa, época de plantio e corte das plantas, tempo de permanência dos resíduos no solo, condições locais e interação entre esses fatores. Este trabalho foi realizado com o objetivo de avaliar a absorção de nutrientes por cinco plantas de cobertura, que foram utilizadas para produção de grãos, sementes e forragem, em diferentes quantidades de sementes por hectare e pela vegetação espontânea, bem como para o efeito sobre as propriedades químicas de dois Latossolos, cultivadas em rotação com as culturas da soja e do milho. Os experimentos foram instalados em Votuporanga, SP, e Selvíria, MS, em...
Tipo: Journal paper Palavras-chave: Production systems; Soil quality; Crop combinations and interactions; Farming Systems; Crop husbandry; Soil tillage; Soil.
Ano: 2014 URL: http://orgprints.org/29096/1/Borges_Abssor%C3%A7%C3%A3o.pdf
Imagem não selecionada

Imprime registro no formato completo
Ackerbausysteme im ökologischen Landbau Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Zusammenfassung der Ergebnisse und Schlussfolgerungen: Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren...
Tipo: Report Palavras-chave: Nutrient turnover; Systems research and participatory research; Crop combinations and interactions; Production systems; Soil quality; Soil tillage; Composting and manuring.
Ano: 2000 URL: http://orgprints.org/1535/1/Link%2DVolltext.htm
Imagem não selecionada

Imprime registro no formato completo
Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren langfristigen Auswirkungen auf die Nährstoffbilanzen der Fruchtfolgen...
Tipo: Journal paper Palavras-chave: Composting and manuring; Systems research and participatory research; Nutrient turnover; Crop combinations and interactions; Soil tillage.
Ano: 2001 URL: http://orgprints.org/3947/1/UFZ_GasfEmiss_Abschlb.pdf
Imagem não selecionada

Imprime registro no formato completo
Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren langfristigen Auswirkungen auf die Nährstoffbilanzen der Fruchtfolgen...
Tipo: Report Palavras-chave: Composting and manuring; Systems research and participatory research; Nutrient turnover; Crop combinations and interactions; Soil tillage.
Ano: 2001 URL: http://orgprints.org/1538/1/1538%2Dbeckmann%2Du%2Det%2Dal%2D2001%2Dackerbausysteme%2Dufz.pdf
Imagem não selecionada

Imprime registro no formato completo
Adubos verdes para sistemas agroflorestais com Guanandi cultivado em várzea e terraço fluvial. Organic Eprints
Devide, Antonio Carlos Pries.
A Mata Atlântica é um complexo de ecossistemas com elevada diversidade biológica; um dos biomas mais ameaçados do mundo pelas agressões às florestas; uma das cinco regiões do planeta de maior prioridade para a conservação. Em Pindamonhangaba, SP, vem sendo realizado experimentos de conversão agroflorestal de áreas de plantio de Guanandi (Calophyllum braziliense) em várzeas e terraços fluviais. O objetivo desse trabalho é buscar alternativas menos impactantes, rentáveis e com potencial de contribuição à conservação ambiental, com a seleção de adubos verdes adaptados regionalmente para compor os sistemas agroflorestais (SAFs). Os SAFs estão ajudando a restaurar a Mata Atlântica resgatando a vocação agrícola da Fazenda Coruputuba. Essa revisão bibliográfica...
Tipo: Working paper Palavras-chave: Production systems; Crop combinations and interactions; Farming Systems; Crop husbandry; Soil tillage; Vegetables; Weed management.
Ano: 2013 URL: http://orgprints.org/24817/1/ADUBACAO_VERDE_CALOPHYLLUM_SAF.pdf
Imagem não selecionada

Imprime registro no formato completo
Afgræsning af blandinger med bælgplanter og cikorie Organic Eprints
Eriksen, J; Søegaard, K; Kristensen, T.
Græsblandinger med hvidkløver, rødkløver, lucerne og cikorie havde alle en god kvalitet og gav mulighed for produktion af differentieret mælk med betydelig grad af afgræsning. Det kræver afgræsningssystemer tilpasset den enkelte blanding.
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions; Dairy cattle.
Ano: 2007 URL: http://orgprints.org/11227/1/ko.html
Imagem não selecionada

Imprime registro no formato completo
Afgræsningsrug Organic Eprints
Madsen, Sophie Tandrup.
Afgræsningsrug med udlæg kan erstatte tørkeramt græsudlæg med flere fordele: Høj ædelyst gennem sæsonen med den rette styring. Højt udbytte og stabilitet på trods af tørke.
Tipo: Report chapter Palavras-chave: Crop combinations and interactions.
Ano: 2018 URL: http://orgprints.org/35212/1/Afgr%C3%A6sningsrug.pdf
Imagem não selecionada

Imprime registro no formato completo
Agroforestry market gardening: a strategic choice to improve sustainability in agroecological transition ? Organic Eprints
Leger, François; Bellec-Gauche, Agnès; Morel, Kévin; WARLOP, FRANCOIS.
Among the various forms of agroforestry, spatial combinations of fruit trees and market gardening are currently experiencing strong growth In France, the SMART project, which brought together several research teams and development organisations, aimed to explore these systems, taking into account the technical, agro and socio-economic dimensions. The results of the surveys and observations carried out among farmers associated with this project showed that these systems mainly concerned farms engaged in short food supply chains for which diversity was a central element for ommercial strategy and performance. Diversification of products is therefore a central justification for the intercropping of fruit trees...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farm economics; Social aspects; Biodiversity and ecosystem services.
Ano: 2018 URL: http://orgprints.org/33573/1/Leger_2018_Agroforesty%20market%20gardening.pdf
Imagem não selecionada

Imprime registro no formato completo
Alsidig drift godt for jordens poresystem Organic Eprints
Schjønning, P..
I økologisk jordbrug anvendes alsidige sædskifter, efterafgrøder og/eller tildeling af husdyrgødning/halm/kompost. Alt dette er med til at fremme mængden af organisk stof i jorden, som normalt forventes at spille en stor rolle for strukturen og poresystemet (jordens hulrum). FØJO har gennemført en række undersøgelser for at afdække, hvor meget og hvordan man som landmand kan påvirke forholdene. De langvarige forsøg med forskellig gødskning på Askov Forsøgsstation giver et godt grundlag for at vurdere effekten af organisk stof på jordens poresystem. Ca. 100 års forsøg uden tilførsel af nogen form for gødning har resulteret i et indhold af organisk stof i jorden på kun ca. 1% (svarende til et humusindhold på ca. 1,7%). Brug af mineralsk gødning (NPK) har...
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions; Soil biology; Soil quality; Composting and manuring.
Ano: 2004 URL: http://orgprints.org/7757/1/7757.doc
Imagem não selecionada

Imprime registro no formato completo
Alternative forage crops for finishing lambs Organic Eprints
McLean, Barbara.
Alternative forage crops offer a number of benefits for farmers including a cheap finishing system for lambs, benefits for soil condition, fertility building for rotations and providing a cover crop. Certain forages have also been demonstrated to have some anthelmintic benefits for lambs. A demonstration study was undertaken to investigate the potential of six crops used in the horticulture industry (fertility building crops) as forage crops for weaned growing lambs. The crops include white mustard, Nemat (form of Rocket), Crimson Clover, Sweet Clover , Caliente 119 and Caliente 99 (Cruciferae). The grazing field was split into three blocks and two crops were sown in solid strips in each block. Each block also had grass headlands. 10 ewe lambs were...
Tipo: Report Palavras-chave: Crop combinations and interactions; Sheep and goats; Feeding and growth.
Ano: 2007 URL: http://orgprints.org/10813/1/altcrops07.pdf
Imagem não selecionada

Imprime registro no formato completo
Aluskasveista apua luomuviljan rikkakasvintorjuntaan? Organic Eprints
Salonen, Jukka; Känkänen, Hannu.
Rikkakasvien torjunta ja viljelykasvien riittävä ravinteiden saanti ovat luomutuotannon suuria haasteita. Esitelmässä tuotiin esille aluskasvien mahdollisuuksia rikkakasvien hallinnassa. Aluskasveista näyttää olevan enemmmän hyötyä ravinteiden tuottajana/sitojana kuin rikkakasvien kasvun hillitsijänä. Pitkäaikaiset vaikutukset halutaan vielä selvittää kenttäkoesarjan jatkuessa.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2018 URL: http://orgprints.org/32533/1/MTP2018_Salonen_p27.pdf
Imagem não selecionada

Imprime registro no formato completo
Aluskasveja rikkakasvien kiusaksi Organic Eprints
Salonen, Jukka.
Luomuviljelijöille suunnatun luentopäivän esitelmämateriaali, jossa esitellään aluskasvien mahdollisuuksia rikkakasvien hallnitaan viljanviljelyssä. Esitys perustuu Luonnonvarakeskuksen kenttäkokeisiin Jokioisilla v. 2015-2016.
Tipo: Teaching resource Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2017 URL: http://orgprints.org/31404/1/JukkaSalonen_Aluskasveja-rikkakasvien-kiusaksi.pdf
Imagem não selecionada

Imprime registro no formato completo
Aluskasvien vaikutus luonnonmukaisesti viljellyn ohran ja rikkakasvien kasvuun. Organic Eprints
Koppelmäki, Kari.
Rikkakasvit ovat yksi suurimmista luomuviljelyn satoa rajoittavista tekijöistä. Tavallisesti luomutiloilla käytetyllä mekaanisella rikkakasvin torjunnalla on useita negatiivia ympäris-tövaikutuksia. Peitekasvien viljely on vaihtoehto mekaaniselle rikkakasvien hallinnalle ja samalla se tukee monia muita maataloudelle annettuja ympäristötavoitteita. Pohjoisissa oloissa yleisin tapa toteuttaa peitekasvien viljelyä on kylvää ne satokasvin aluskasviksi. Tässä tutkimuksessa selvitettiin aluskasvien vaikutusta ohran (Hordeum vulgare) ja rikkakasvien kasvuun Jokiosissa sijaitsevilla koekentillä. Lintupajussa oli kaksi erillistä koeasetelmaa, joista toinen oli lannoittamaton ja toinen naudan lietelannalla lannoitettu (50 N kg/ha) koeasetelma. Kokeessa oli neljä...
Tipo: Thesis Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2016 URL: http://orgprints.org/31144/1/Kari_Koppelmaki_Thesis_9_2016.pdf
Imagem não selecionada

Imprime registro no formato completo
An agronomic approach to yield comparisons between conventional and organic cropping systems Organic Eprints
Neuhoff, Daniel.
This paper discusses some relevant agronomic aspects related to the productivity of organic farming systems (OFS). In a first step some key requirements to ensure the validity of comparative studies including the consideration of rotation yields and the use of representative amounts of organic inputs are defined. A main chapter is dedicated to the potential of biological nitrogen fixation to substitute mineral nitrogen, which currently covers an estimated third of the total nitrogen input to agricultural field with increasing tendency. To bring forward OA as a sustainable method of food production with high process quality, it is suggested to focus rather on a large scale organic vegetable and fruit production than on global supply of calories and protein.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions.
Ano: 2014 URL: http://orgprints.org/23955/1/23955_Neuhoff_Istanbul%25202014%2520orginal_MM.pdf
Imagem não selecionada

Imprime registro no formato completo
An early Assessment of a Plant-based Organic Vegetable System: Analysis of inorganic-N and soil enzyme activity Organic Eprints
Jensen, Janne Guldbæk Kirstejn.
Study of soil and plant nitrogen pools and soil microbial activities in the DoubleCrop trial at AU-FOOD Årslev
Tipo: Thesis Palavras-chave: Soil quality; Crop combinations and interactions; Nutrient turnover; Soil tillage; Air and water emissions; Soil; Vegetables; Root crops.
Ano: 2018 URL: http://orgprints.org/35460/1/Janne%20Guldb%C3%A6k%20Kirstejn%20Jensen_1103769_542889_Hand-in_An-early-Assessment-of-a-Plant-Based-Organic-Ve.pdf
Registros recuperados: 640
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional