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| Registros recuperados: 659 | |
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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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| Melander, B.; Olesen, J.E.. |
| Weed problems can constrain organic crop production resulting in significant losses in yield and quality. Especially perennial weed species such as Elytrigia repens, Cirsium arvense and Tussilago farfara are posing problems as arable cropping systems do not hamper their vegetative proliferation sufficiently. Annual weeds may also reach unacceptable infestation levels leaving the growers with poor yielding crops and severe future weed problems owing to the shedding and spread of weed seeds. Effective weed management is a key component for successful organic crop production and a prerequisite to increase the yielding potential of many organic crop production systems. Weed problems are most severe on stockless arable farms because the supply of nutrients can... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Weed management. |
| Ano: 2013 |
URL: http://orgprints.org/24550/1/24550.pdf |
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| Bary, Andy. |
| This webinar is about Cover crops. They are an integral part of all organic cropping systems since they provide the foundation for organic nutrient management, pest control, weed suppression, and improving soil health. Andy Bary, Washington State University – Puyallup, explains the different classes of cover crops and the benefits each class provides. He also introduces the concept of “inter-seeding relay planting” or the growing of one crop planted between the rows of an existing crop, e.g. hairy vetch planted into corn. He discusses seeding techniques, species selection, and management strategies to ensure success. Weed suppression using summer cover crops is also discussed. The webinar is targeted both to newcomers and experienced organic farmers. |
| Tipo: Practice tool |
Palavras-chave: Soil quality; Crop combinations and interactions; Soil. |
| Ano: 2011 |
URL: http://orgprints.org/32593/1/Cover_intercrop.png |
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| Pirhofer-Walzl, K.; Rasmussen , Jim; Høgh-Jensen, Henning; Eriksen, Jørgen; Soegaard, Karen; Rasmussen, Jesper. |
| Legumes play a crucial role in nitrogen supply to grass-legume mixtures for ruminant fodder. To quantify N transfer from legumes to neighbouring plants in multi-species grasslands we established a grass-legume-herb mixture on a loamy-sandy site in Denmark. White clover (Trifolium repens L.), red clover (Trifolium pratense L.) and lucerne (Medicago sativa L.) were leaflabelled with 15N enriched urea during one growing season. N transfer to grasses (Lolium perenne L. and xfestulolium), white clover, red clover, lucerne, birdsfoot trefoil (Lotus corniculatus L.), chicory (Cichorium intybus L.), plantain (Plantago lanceolata L.), salad burnet (Sanguisorba minor L.) and caraway (Carum carvi L.) was measured. Neighbouring plants contained greater amounts of N... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2012 |
URL: http://orgprints.org/20645/4/20645.pdf |
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| Carlesi, Stefano; Antichi, Daniele; Sbrana, Massimo; Barberi, Paolo. |
| Vicia villosa Roth, or hairy vetch, is one of the most productive cover crops (CC) in Mediterranean dry areas, with an interesting potential as dead mulch in no-tillage cropping systems. In low-input cropping systems, mechanical termination of hairy vetch could replace a glyphosate application to control weeds. Mechanical termination (e.g. with a roller crimper) of hairy vetch is ineffective until the late growing stages of vetch, leading to delayed sowing and yield reduction in the following crop. To find the best compromise in timing between effective termination of vetch and reasonable yield of no-till sunflower, an on-farm experiment was carried out in Pisa (Italy) in 2012/13 and 2013/14 to compare three termination techniques (roller crimper with no,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Soil tillage; Biodiversity and ecosystem services; Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/29702/1/Carlesi%20et%20al.%202014.pdf |
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| Paulsen, Hans Marten; Schochow, Martin; Behrendt, Andrea. |
| Mixed cropping systems with oil crops are of growing interest in organic farming. They can offer agricultural advances like competition against weeds, support against lodg¬ing and buffering of yield fluctuations. The aim of the cultivation method is to gain additional oil yields for energy or feed purposes. The reported higher land-efficiency-ratios of those mixed cropping systems should lead to higher nutrient requirements. But it is unknown if the different crops just compete for rare soil nutrients or if comple¬mentary effects in mixed cropping systems lead to higher nutrient efficiency. In a field study N-contents in plants and N uptake of diverse mixed cropping systems were compared to sole cropping systems. In linseed (Linum usitatissivum) or false... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Crop combinations and interactions. |
| Ano: 2007 |
URL: http://orgprints.org/9412/1/9412_Paulsen_Vortrag.pdf |
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| Rasmussen, J.; Søegaard, K.; Eriksen, J.. |
| Inclusion of forage legumes in low-input grassland mixtures improves biomass production and soil fertility trough addition of nitrogen (N) from N2-fixation. The impacts of different mixture of legumes and companion grasses on the N production of the forage mixture have rarely been investigated under comparable soil and climatic conditions. We conducted a field experiment on a sandy soil at two nitrogen levels with seven two-species grassland mixtures: alfalfa (Medicago sativa), bird’s-foot trefoil (Lotus corniculatus), red clover (Trifolium pratense), or white clover (Trifolium repens) in mixture with perennial ryegrass (Lolium perenne), and white clover in mixture with meadow fescue (Festuca pratensis), timothy (Phleum pratense), or hybrid ryegrass... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Nutrient turnover. |
| Ano: 2010 |
URL: http://orgprints.org/17882/4/17882.pdf |
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| Schaub, Dagmar; Paulsen, Hans Marten; Böhm, Herwart; Rahmann, Gerold. |
| Although the crop rotation is an essential element of organic farming, only few long-term trials exist which compare different crop rotations under temperate climate. The long-term monitoring Trenthorst was established in 2003 and comprises the different crop rotations of two cash crop farms and three livestock farms specialised in dairy, pigs and goats/oil seeds respectively. In addition to the comparison of crop rotations under practical farm conditions the long-term monitoring study aims to analyse the development of soil parameters, yields and crop qualities after the conversion to organic agriculture. On each arable field four monitoring points were established, where the relevant parameters are measured. The yields of the first three years are... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Soil. |
| Ano: 2007 |
URL: http://orgprints.org/9609/1/9609_Schaub_Poster.pdf |
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| LAÂNAYA, Rachid. |
| Ce travail a été mené à la ferme expérimentale du Complexe Horticole d’Agadir. Son objectif est d’étudier d’une part le comportement de trois variétés du haricot vert associées à une culture de courgette et d’autre part l’effet d’une fumure organique à base de farine de poisson sur le rendement de la courgette (variété ROBERTA) dans un système biologique. L’essai s’est déroulé sous serre de type delta 9. Pour le premier essai, l’effet de l’association a été testé dans un dispositif qui permet de placer une ligne simple de courgette entre deux lignes de haricot, et de façon à ce que chaque plant de courgette soit entouré par six plants de haricot vert. La densité était de 5000 plants par hectare pour la courgette et de 33333 plants par hectare pour le... |
| Tipo: Thesis |
Palavras-chave: Crop combinations and interactions; Vegetables; Composting and manuring. |
| Ano: 2002 |
URL: http://orgprints.org/6531/1/Laanayarachid02.pdf |
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| Registros recuperados: 659 | |
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