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| Registros recuperados: 659 | |
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| Haas, Guido. |
| Untersucht wurde die Stickstoffzufuhr mit dem Anbau von Leguminosen als Winterzwischenfrüchte (Zottelwicken, Inkarnatklee, Landsberger Gemenge, Wickroggen). Referenzvarianten waren Rübsen, Roggen und Gras in Reinsaat sowie Brache. In Feldversuchen an drei organisch bewirtschafteten Standorten im Rheinland wurden in den Jahren 2002 und 2003 die Zwischenfrüchte und Nachfruchtwirkung geprüft. Bestimmt wurden Ertrag (21 - 62 dt TM/ha), Stickstoffaufnahme (65 - 200 kg N/ha) und Netto-N-Fixierung (im Mittel 100 kg N/ha). Die Zwischenfrüchte wurden im Mai/Juni gemulcht oder beerntet. In den ersten Wochen nach Umbruch der Zwischenfrucht und Saat der Nachfrucht wurde der Verlauf der N-Mineralisierung im Boden gemessen (max. 50 - 180 kg Nmin-N/ha im Ap). Der... |
| Tipo: Book |
Palavras-chave: Nutrient turnover; Crop combinations and interactions. |
| Ano: 2004 |
URL: http://orgprints.org/13944/1/Report_Wicke04.pdf |
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| Wahid, R; Feng, L; Cong, WF; Ward, A; Møller, HB; Eriksen, J. |
| In the present study, biogas potentials of multispecies swards including grass, lucerne, caraway, ribwort plantain and chicory from two- and four-cut regimes (Mix-2 and Mix-4) for mono-digestion applying batch and continuous modes under lab-scale conditions were investigated. The gas yields in terms of volatile solids (VS)loaded from Mix-2 and Mix-4 were compared with pure stand lucerne from the four cuts regime (Lu-4). The batch test results indicate that methane yield on a VS basis was highest from Mix-4 (295 L kg−1), followed by Mix-2 (281 L kg−1) and Lu-4 (255 L kg−1). The results were confirmed with continuous experiments, during which the reactor digesting Mix-4 was stable throughout the experiment with low ammonia and volatile fatty acid... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Nutrient turnover. |
| Ano: 2018 |
URL: http://orgprints.org/32974/1/Wahid%20et%20al%202018.pdf |
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| Duman, İbrahim; Düzyaman, Eftal; Kaya, Seçkin; Nazik, Ceren Ayşe; Pullu, Hakan; Bilen, Emre; Aksoy, Uygun. |
| Organik tarımda temel ilkelerden biri işletme dışı girdiler yerine işletme içi girdilere dayalı olabildiğince kapalı bir sistemin kurulmasıdır. Bu açıdan yeşil gübreleme, organik tarım teknikleri arasında toprak verimliliğinin sağlanması açısından temel bir uygulamadır. Çalışma, ardı ardına yetiştirilen baklagil sebze türlerinin önceki baklagil türünden nasıl etkilendiğinin belirlenmesi amacıyla Ege Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü deneme alanlarında 4 tekerrürlü ve bölünmüş parseller deneme desenine göre kurulmuştur. Bu amaçla 3 farklı baklagil sebze türü (bezelye, fasulye, bakla) birbiri ardına üretimde ülkemizde geçerli organik tarıma ilişkin kanun ve yönetmelikler izlenerek yetiştirilmiştir. Ayrıca bölünmüş parsellerde içeriği... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Vegetables. |
| Ano: 2009 |
URL: http://orgprints.org/22863/1/Paper.pdf |
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| Devide, Antonio Carlos Pries; Ribeiro, Raul de Lucena Duarte; Valle, Teresa Losada; Almeida, Dejair Lopes de; Castro, Cristina Maria de; Feltran, José Carlos. |
| Foram avaliados sistemas orgânicos de produção de mandioca “de mesa”, em Seropédica (RJ). O experimento constou dos seguintes tratamentos: monocultivo de mandioca (cv. IAC 576-70) e consórcios com milho experimental (cv. Eldorado), caupi (cv. Mauá) e milho+caupi. O manejo orgânico foi padronizado e toda a área experimental irrigada durante o período de permanência do milho no sistema. Do milho, foram colhidas espigas verdes (imaturas) e a parte aérea acamada na superfície do solo. O caupi foi incluído como adubo verde e cortado na floração, sendo mantidos os resíduos na superfície do solo. Ambos os consortes ocuparam as entrelinhas da mandioca, de modo alternado, semeados após a primeira capina da cultura principal. A cultivar IAC 576-70 mostrou-se... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Crop combinations and interactions; Root crops. |
| Ano: 2009 |
URL: http://orgprints.org/20383/1/Devide_produtividade.pdf |
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| Hauggaard-Nielsen, Henrik; Jensen, Erik Steen; Carter, Mette S.; Johansen, Anders; Ambus, Per. |
| In contrast to energy technologies like solar and wind, energy in the form of biomass can be stored and bioenergy produced when needed using a wide range of technologies. However, a substantial rise in the use of biomass for energy is expected, which means additional pressure on farmland sustainability. Organic agriculture (OA) is facing a big challenge producing bioenergy from local resources and on the same time maintaining soil fertility. There is a clear goal to reduce reliance on fossil fuels and thereby decrease greenhouse gas emissions, but the question is how to reach it? In a four year ICROFS (www.icrofs.org) project titled “BioConcens” (www.bioconcens.elr.dk/uk/) one objective is to design and test a strip intercropping concept. Strip... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Farm nutrient management. |
| Ano: 2009 |
URL: http://orgprints.org/18950/3/18950_paper.pdf |
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| Kolbe, Hartmut; Zimmer, Jörg. |
| In dem vorliegenden Leitfaden werden in allgemeinverständlicher Form zunächst die bodenkundlichen und pflanzenbaulichen Grundlagen zur Humuswirtschaft mit dem neuesten Stand vorgestellt. Anschließend werden geeignete Methoden zur Bodenuntersuchung und Humusbilanzierung beschrieben. An Hand von Beispielen werden Anleitungen zur Durchführung von Bilanzierungen und zur Interpretation der Ergebnisse gegeben. Im Mittelpunkt des Leitfadens stehen Handlungsgrundlagen zur Sicherung der Bodenfruchtbarkeit durch Aufrechterhaltung einer optimalen Versorgung mit organischer Substanz für den konventionellen und ökologischen Ackerbau. Die Broschüre ist ein wichtiger Ratgeber für Verwaltung, landwirtschaftliche Praxis, Beratung und Schulung. |
| Tipo: Book |
Palavras-chave: Soil quality; Crop combinations and interactions; Composting and manuring; Nutrient turnover; Technology transfer. |
| Ano: 2015 |
URL: http://orgprints.org/29534/1/Humusreproduktion-web.pdf |
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| CALEGARI, A.; TOURDONNET, S.; TESSIER, D.; RHEINHEIMER, D. S.; RALISCH, R.; HARGROVE, W. L.; GUIMARÃES,, M. F.; TAVARES FILHO, J.. |
| This work aims to evaluate the soil physical properties affected by cover crop rotation and soil management in a long-term experiment in southern Brazil. The experiment was established in 1986, with treatments combining six winter treatments and two tillage systems (conventional and no tillage). Bulk density, porosity, aggregate-size class distribution, and organic carbon content of the aggregates were determined at six depths. Bulk density was not affected by tillage systems and winter treatments. The soil disturbance by plowing enhanced the macroporosity, decreased the microporosity, and promoted the formation of smaller aggregate size, in comparison to no tillage. Apart from the soil management, all winter species increased the greater aggregate–size... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Soil tillage; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/29755/1/Influence%20of%20Soil%20Management%20and%20Crop%20Rotation%20on%20Physical%20Properties%20in%20a%20Long_%20Calegari%20et%20al.%2C%202013.pdf |
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| Knudsen, Marie Trydeman; Hauggaard-Nielsen, Henrik; Joernsgaard, Bjarne; Jensen, Erik Steen. |
| Mixed intercropping of spring barley (Hordeum vulgare L.) with field pea (Pisum sativum L.), faba bean (Vicia faba var. minor L.) or narrow-leafed lupin (Lupinus angustifolius L.) was compared to sole cropping in two field experiments at different locations, on a sandy loam soil and a sandy soil, in Denmark in 2001. Grain legumes were dominant in intercrops on the sandy loam soil, except for lupin, whereas barley was dominant in intercrops on the sandy soil site. Combined intercrop grain yields were comparable to grain yields of the respective sole cropped grain legume or sole cropped, fertilized barley on each soil site. On the sandy loam soil, pea-barley and faba bean-barley intercrops increased the proportion of plant N derived from N2 fixation in... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2004 |
URL: http://orgprints.org/4049/1/4049.pdf |
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| Mauscherning, Inken; Loges, Ralf; Pedersen, Lene; Taube, Friedhelm. |
| In maritime climates the production of winter wheat often leads to high nitrate leaching losses. In this study mixtures of winter wheat and catch crops were analyzed as alternative growing system to avoid high leaching losses. In a field experiment pure winter wheat grown as control showed highest N-losses. Leaching losses of 140 kg N ha-1 after the pre-crop grass-clover and of 50 kg N ha-1 after oats as pre-crop were measured. Compared to this, growing winter wheat in mixture with forage rape or oats reduced nitrate leaching by 50 %. Common vetch as mixture partner to winter wheat had a lower potential to reduce leaching losses. Comparable results were obtained growing the catch crops alone followed by spring wheat. Due to the competition for growth... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Air and water emissions. |
| Ano: 2006 |
URL: http://orgprints.org/7577/1/Mauscherning.doc |
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| Stocker, Phil; Hewlett, Kathleen; Brighton, Robbie. |
| This review summarises key research findings regarding the beneficial integration of wildlife and bio-diversity within organic farming. In an ecological and agricultural context bio-diversity would ideally include the diversity of livestock breeds and crop species and varieties, their effect on wildlife habitats, and their role in supporting natural habitats and landscapes. However this subject area is outside the scope of this review and although the presence of such diversity on organic farms will have impacted on the research findings studied, little specific research has been conducted. The objective of this review is to provide information to advisors, based on peer reviewed research, to increase the scope and abundance of wildlife and... |
| Tipo: Other |
Palavras-chave: Crop combinations and interactions; Biodiversity and ecosystem services. |
| Ano: 2008 |
URL: http://orgprints.org/5590/1/Res_review_18_stocker.doc |
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| Suárez Patiño, Angela; Mesa de los Ríos, Paola; Ángel Sánchez, Iván. |
| Frente al deterioro progresivo de la soberanía alimentaria y la pérdida gradual de las semillas que han sido históricamente conservadas y mejoradas por el campesinado, y a la amenaza que implica la implementación de diversos tratados y legislaciones en torno al uso de los recursos fitogenéticos, se hace necesario avanzar en la formulación de estrategias y mecanismos de resistencia que permitan que las semillas criollas y nativas no sólo se conserven sino que se recuperen para avanzar en el camino hacia la autonomía alimentaria de los pueblos. En este sentido surge la iniciativa de implementar una “Despensa Viva de Semillas Criollas” en la Vereda Alto de la Julia, Municipio de Guacarí (Valle del Cauca), proceso que nace del interés de las estudiantes y de... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems; Crop combinations and interactions. |
| Ano: 2013 |
URL: http://orgprints.org/25098/7/25098.pdf |
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| Chastaing, Gaëlle. |
| In intercropping, more than one crop species are cultivated simultaneously on the same piece of land, to promote interaction between species. To determine the effects on yield performance of intercropping of legumes and cereals, a meta analysis has been set up based on data from publications on this kind of field trials as found from an extensive search on Web-of Science. The effect of intercropping has been assessed by comparing yield in pure stand and in the intercrop of each species. Two measures were considered : i) The LER (Land Equivalent Ratio), which is a simple way to compare the pure yield with the intercropping yield by a sum of ratios and ii) the overall effect decomposed into sum of a ”selection effect” and a ”complementary effect” (Loreau... |
| Tipo: Report |
Palavras-chave: Crop combinations and interactions; Crop husbandry. |
| Ano: 2009 |
URL: http://orgprints.org/17131/1/17131.pdf |
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| Registros recuperados: 659 | |
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