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| Registros recuperados: 18 | |
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| Hansen, Sissel; Rivedal, Synnøve; Øpstad, Samson; Heggset, Sverre; Deelstra, Johannes; Dörsch, Peter. |
| We studied greenhouse gas (GHG) emissions (CH4 and N2O), agronomic performance and soil conditions in a grassland on an inverted peat soil that was earlier cultivated and tile-drained, and compared it with grassland on conventionally tile-drained peat. A neighbouring undrained peat was used as a reference for GHG emissions. Preliminary results (2-year field data) revealed reduced GHG emissions from the inverted peat relative to the tile-drained peat, mainly caused by lower CH4 emissions. Our data suggest that peat inversion can improve the agronomic feasibility of forage production in cool-moist areas with abundant organic soils, and can offer a way of agronomic adaptation to a climate with increased precipitation. At the same time it may reduce the GHG... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Air and water emissions; Irrigation and drainage. |
| Ano: 2016 |
URL: http://orgprints.org/31203/1/Hansen%20et%20al%202016%20GHG%20emissions_agronomic%20feasibility_%20inverted%20peat%20soil.%20%20EGF%204-8%20Sept.%20Trondheim%2C%20Abstract.pdf |
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| Franke, Alberto Elvino; Dorfman , Raul. |
| Este trabalho foi conduzido com a finalidade de estimar as necessidades estocásticas de irrigação suplementar por aspersão na cultura da soja (Glycine max L. Merrill), nas regiões agroecológicas do Estado do Rio Grande do Sul, denominadas de Planalto Médio e Missões. As necessidades foram simuladas em relação à combinação entre locais, épocas de semeadura, níveis de manejo da irrigação e entre níveis de ocorrência . As necessidades de irrigação suplementar foram máximas na semeadura de 15 de outubro, e os menores valores foram encontrados na semeadura de 15 de dezembro; as necessidades de irrigação suplementar foram maiores nas condições agroecológicas das Missões quando comparadas com as do Planalto Médio; as lâminas de irrigação suplementar estimadas... |
| Tipo: Journal paper |
Palavras-chave: Soil; Irrigation and drainage. |
| Ano: 2000 |
URL: http://orgprints.org/21947/1/Franke_Necessidades.pdf |
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| LOPES, M. P. C.; MELLO, J. L. P.; CRUZ, F. A. O.. |
| A agricultura é ponto forte no aspecto econômico da região Noroeste Paulista, onde é possível se encontrar plantações de seringueiras, cana-de-açúcar, frutíferas entre outras culturas, e uma forte produção pecuária. Há menos de 10 anos, não era prática comum na região a irrigação de pastagem, pois não havia o conhecimento dos benefícios que a irrigação poderia oferecer à pecuária. Os produtores de gado, principalmente de gado leiteiro, passavam por dificuldades na época de seca, sendo obrigados a vender grande parte das cabeças por não disporem de pasto para suportar tantas reses. Nesse trabalho, procuramos analisar a percepção do produtor de leite sobre o processo de irrigação de pastagem. |
| Tipo: Other |
Palavras-chave: Farm economics; Produce chain management; Irrigation and drainage. |
| Ano: 2011 |
URL: http://orgprints.org/19796/1/Preprint%28agricola%29.pdf |
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| Silva, Edmilson Evangelista da; Azevedo, Pedro Henrique Sabadin; Almeida, Maxwell Merçon Tezolin Barros; De-Polli, Helvécio; Guerra, José Guilherme Marinho. |
| The objective of this work was to evaluate the influence of the intercropping and irrigation frequencies in the leaf development and productivity of taro (Colocasia esculenta) under organic management. The experiment was set up as a randomized complete block design, a factorial 2 x 2, with four replications. Taro was cultivated in monoculture or intercropped with Crotalaria juncea under two irrigation frequencies: every 3.5 days for 30 minutes and every 15 days for 2 hours. The intercropping increased taro petiole length but did not increase leaf area. The same effects were observed for irrigation frequency on the leaf area and petiole, length at the 30th and 60th days after C. juncea cutting. The amount of taro yield and offshoot number of class 1... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Farm nutrient management; Irrigation and drainage. |
| Ano: 2008 |
URL: http://orgprints.org/12595/1/Silva_12595_ed.doc |
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| A certified organic farm has been developed for research and demonstration of organic production system for low rainfall/arid areas at central research farm, Central Arid ZOne Research Institute(CAZRI), Jodhpur,Rajasthan, INDIA. Rainwater harvesting, composting,enhancing agrodiversity, preparation of bio-pesticides are being done at farm. Improvement in fauna and flora diversity, soil organic carbon and other properties have been observed. Crop resilience increased to high climatic variability/changed climte. Presently research is going on to develop e system for high value crops of arid zone i.e. cumin, psyllium, sesame and cluster bean(Guar). Almost weekly, Farmers' groups visit and get hands on training on organic system. |
| Tipo: Organization description |
Palavras-chave: Crop combinations and interactions; Soil biology; Systems research and participatory research; Assessment of impacts and risks; Composting and manuring; Technology transfer; Biodiversity and ecosystem services; Farm nutrient management; Irrigation and drainage. |
| Ano: 2013 |
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| Aghaalikhani, Dr. Majid; Ehteshami, Dr. Seyyed Mohammad Reza. |
| This research focused on evaluating the usefulness of an arbuscular mycorrhizal fungus (Glomus intraradices) and a plant growth-promoting rhizobacterium (Pseudomonas fluorescens) to maize growth under water deficit stress. Field experiment was conducted at Soil and water research institute, Karaj Station, Iran, during 2006 growing season. Biological positive effects of the micro organisms on plant growth, nutrient uptake, grain yield and yield components in maize plants was recorded in the treatment receiving mixed inoculums of G. intraradices and P. fluorescens. Maize shoot P content, grain yield, yield components, harvest index, grain N and P, soil available P, root colonization percentage and water use efficiency increased significantly with the G.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Irrigation and drainage. |
| Ano: 2008 |
URL: http://orgprints.org/11833/1/Aghaalikhani_11833_ed.doc |
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| Caillaud, Caroline. |
| The main objective of this study was to determine the impact of three organic strategies (organic compost, green manure and dry mulching) on soil’s physical behaviour, vine physiology and grapevine quality, from 2015 to 2017, within two vineyards: FF and SD. The degraded areas chosen had significant higher disruption of the soil, lower yield, but also lower quality of the grape. The two-years application of compost improved significantly the soil structure, the nitrogen and hydric status of the vine. The dry mulching and the green manure didn’t have significant impact. The vintage effect must be taken in account as the climatic conditions from 2015 to 2017 were heterogeneous and the vintage 2017 particularly dry. However, the treatment impact is proved by... |
| Tipo: Thesis |
Palavras-chave: Soil quality; Composting and manuring; Soil tillage; Soil; Viticulture; Irrigation and drainage. |
| Ano: 2017 |
URL: http://orgprints.org/33844/1/Caroline_Caillaud_Rapport%20de%20stage%20BSA_23_10.pdf |
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| Medeiros, Damiana Cleuma de; Azevedo, Celicina Maria da Silveira Borges; Marques, Luciano Façanha; Sousa, Robson Alexsandro; Oliveira, Cosme Jales de. |
| O objetivo deste trabalho foi avaliar a produção de mudas de tomate em três substratos sob irrigação com efluente de piscicultura. O experimento foi conduzido na horta do Departamento de Ciências Vegetais, na Universidade Federal Rural do Semiárido (UFERSA), Mossoró, RN. O delineamento experimental foi o inteiramente casualizado, em esquema fatorial 3 x 2, com quatro repetições, sendo os tratamentos constituídos pelas combinações tipos de substrato (Plantmax®, composto orgânico e areia lavada) com fonte de água de irrigação (efluente de piscicultura e água de poço). A avaliação foi feita aos 24 dias da germinação através de número de folhas, altura da parte aérea, comprimento da raiz principal, massa seca da parte aérea e massa seca do sistema radicular. O... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Vegetables; Farm nutrient management; Irrigation and drainage. |
| Ano: 2013 |
URL: http://orgprints.org/25600/1/Medeiros_Qualidade%20de%20mudas%20de%20tomate%20em%20fun%C3%A7%C3%A3o%20do%20substrato%20e%20irriga%C3%A7%C3%A3o%20com%20efluente.pdf |
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| Carneiro Neto, José Alves; Andrade, Eunice Maia de; Rosa, Morsyleide de Freitas; Mota, Francisco Suetônio Bastos; Lopes, José Frédson Bezerra. |
| Uma análise integrada do atual uso dos recursos naturais do Perímetro Irrigado de Ayres de Souza, localizado no Vale do Acaraú, Ceará, foi realizada através do desenvolvimento de um índice de sustentabilidade agroecológica. Os dados dessa pesquisa foram oriundos de questionários aplicados a 33 produtores agrícolas beneficiados pelo projeto de irrigação. Os indicadores de sustentabilidade foram estimados pelo emprego de análise fatorial, método da análise fatorial/análise de componentes principais. O índice de sustentabilidade estimado a partir dos indicadores selecionados registrou uma situação de sustentabilidade fragilizada ou de insustentabilidade reversível. As unidades produtivas apresentaram um porcentual de 60,6% com alguma sustentabilidade; e os... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Irrigation and drainage. |
| Ano: 2008 |
URL: http://orgprints.org/20372/1/Carneiro_%C3%ADndice.pdf |
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| Krause, Tanja; Böhm, Herwart; Loges, Ralf. |
| Der Anbau und die Verarbeitung von Kartoffeln zu Veredelungsprodukten hat sich im ökologischen Landbau im geringen Umfang etabliert. Zudem steigt die Nachfrage nach Convenience-Produkten wie Chips und Pommes frites. Bei einem an die Bedingungen des ökologischen Kartoffelbaus angepassten Management der Verarbeiter könnte der Anbau von Verarbeitungskartoffeln den Landwirten neue Einkommensquellen bieten. Untersucht wurde die Eignung zur Weiterverarbeitung von Kartoffeln in Sortenversuchen an mehreren Standorten, die Wirkung unterschiedlich genutzten Kleegras als Vorfrucht zu Kartoffeln als auch die Auswirkungen von Beregnung in Abhängigkeit unterschiedlich hoher Stallmistdüngung. |
| Tipo: Journal paper |
Palavras-chave: Root crops; Irrigation and drainage; Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/8714/1/kartoffeln_f%C3%BCr_pommes.pdf |
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| Krause, Tanja; Böhm, Herwart; Loges, Ralf; Taube, Friedrich; Haase, Norbert U.. |
| Ökologisch erzeugte Kartoffeln, die zur Verarbeitung zu Pommes frites oder Chips genutzt werden sollen, müssen besondere Qualitätseigenschaften aufweisen. So wird beispielsweise ein mittlerer bis hoher Stärkegehalt bei gleichzeitig niedrigen Gehalten an reduzierenden Zuckern gefordert. Um den von der verarbeitenden Industrie geforderten Qualitätsansprüchen gerecht zu werden, ist neben einer ausgewogenen Düngung gerade auf leichten Böden auch eine ausreichende Wasserversorgung entscheidend, die oft nur über Beregnung sichergestellt werden kann. Unter den Fragestellungen, ob organischer Dünger (Stallmist) durch die Beregnung besser von den Verarbeitungskartoffeln ausgenutzt werden kann und inwiefern Ertragsstruktur und die Qualitätsparameter von... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Root crops; Irrigation and drainage; Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/8709/1/PflaTag2005_Krause_Kartoffelberegnung.pdf |
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| Andrade, Irineu P. de S; Carvalho, Daniel F. de; Almeida, Wilk S. de; Silva, Jonathas B. Gonçalves; Silva, Leonardo D. B. da. |
| This work aimed to study the effect of drip irrigation management on growth and yield of the 'Roxo de Valinhos' fig tree (Ficus carica L.), at three years old, and to determine crop coefficients (Kc) and its water requirement (ETc) under Baixada Fluminense climate and soil conditions, state of Rio de Janeiro, Brazil. The study was carried out in the experimental area of SIPA (Sistema Integrado de Produção Agroecológica) in Seropédica, Rio de Janeiro State, from July 2011 to May 2012. The experimental area was divided in two blocks, named B1 (sandy clay loam texture) and B2 (loamy sand texture). In each block, irrigation frequencies (IF) of two (T1) and four days (T2) were evaluated, as well as the irrigation absence (T3). Irrigation management and water... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Irrigation and drainage. |
| Ano: 2014 |
URL: http://orgprints.org/28499/1/Andrade_water.pdf |
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| Böhm, Herwart; Buchecker, Kirsten; Dreyer, Wilfried; Landzettel, Christian; Mahnke-Plesker, Sylvia; Westhues, Franz. |
| Öko-Kartoffeln genießen bei den Verbrauchern eine hohe Beliebtheit. Gleichzeitig steigen die Anforderungen an die Qualität. Qualität ist ein komplexer Begriff und beinhaltet zum einen die „äußere Qualität“. Bei Kartoffeln zum Beispiel zählen hierzu eine gleichmäßige Knollenform, keine Beschädigungen sowie eine möglichst glatte Schale ohne schwarze Rhizoctonia-Pocken oder Schorfflecken. Zur „inneren Qualität“ zählen dagegen die wertgebenden und wertmindernden Inhaltsstoffe. Dazu zählen ein der Sorte entsprechender Stärkegehalt, ein geringer Nitratgehalt und eine hohe sensorische Qualität, womit u.a. das Geschmackserlebnis gemeint ist. Geschmack ist hier definiert als der Gesamtsinneseindruck, den der Verbraucher durch das Zusammenwirken von Geschmacks-,... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Crop combinations and interactions; Soil tillage; Irrigation and drainage; Root crops. |
| Ano: 2014 |
URL: http://orgprints.org/29597/1/B%C3%B6hm_etal_2015_Forschungsreport_Kartoffelqualit%C3%A4t.pdf |
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| Burte, Julien Daniel Pierre; Coudrain, Anne; Marlet, Serge. |
| Water from small alluvial aquifers constitutes an attractive and low-cost option for irrigation and rural development in Northeastern Brazil. Based on piezometric measurements, geochemical analyses and electrical conductivity estimates, the present case study identified the main processes determining the hydrosaline dynamics of an alluvial aquifer in a small watershed inserted in the crystalline bedrock of a semi-arid region in Ceará and evaluated the availability of water for irrigation. Accumulation of salts in soil are related to evaporative flux from the aquifer and is increased by irrigation from the groundwater of the alluvial aquifer. The water in these aquifers may be used for irrigation, but represents a risk of soil salinization and... |
| Tipo: Journal paper |
Palavras-chave: Irrigation and drainage. |
| Ano: 2011 |
URL: http://orgprints.org/22430/1/Burte_Use.pdf |
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| Registros recuperados: 18 | |
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