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| Registros recuperados: 816 | |
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| Mokhtari Karchegani, Hossein; Mottaghi Jahromi, M; Kazemeini, S,A; Zarei, M. |
| The aim of this research was investigated of arbuscula rmycorrhizal fungi (Glomus mossea) on redroot pigweed (Amaranthus retroflexus L.) andSesame (Sesamum indicum) Darab cultivar competition under salt stress The greenhouse experiment was laid out as a factorial based on randomized complete design with three replications at Faculty of Agriculture, Shiraz University, Iran in 2015. The treatments were consisted of salt stress (S0=water as control, S1=0.8, S2= 7 and S3=14 ds/m Of NaCl+CaCl2), fungi (F0: control without inoculation, F1: inoculation with Glomus mossea) and redroot pigweed (W0: weed free, w1: weedy). The results showed that interactions effect of different levels of salt stress, mycorrhizal fungi and weed on Sesame physiological traits was... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Crop combinations and interactions; Research methodology and philosophy; Weed management; Farm nutrient management. |
| Ano: 2018 |
URL: http://orgprints.org/34635/1/EWRS2018.pdf |
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| Petersen, Maja Eline; Bertelsen, Inger. |
| The biggest challenge for achieving higher and more stable yields in organic plant breeding is linked to adequate nitrogen supply and the management of aggressive weeds. The RowCrop project has developed a row cultivation system with cereals and catch crops that enable weed control in rows of both crops. The cultivation system is composed of three elements: 1. Weed control in the rows of grain sown at 25 cm row spacing 2. Establishment of nitrogen fixing crops in between the rows at the last weed control 3. Weed control in the crop rows after harvest, in order to control perennial weeds. Weed control in the row in the main crop gives increased yield when: • The yield potential in the field is high • Weed pressure is high • Weed control in the row... |
| Tipo: Practice tool |
Palavras-chave: Soil; Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/36818/1/oe_18_3811_faktaark-Raekkedyrkning-af-korn-med-efterafgroede.pdf |
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| Kristensen, Erik Fløjgaard; Jørgensen, Martin Heide; Kristensen, Jens Kristian. |
| Disinfection of the soil by means of steaming has been a common method for eliminating weeds and fungal diseases. However, surface steaming of soil is a very energy-intensive process, and consequently, efforts have been made to develop a machine for narrow-band steaming of the soil under and around rows of cultivated plants prior to seeding. The use of this machine may achieve up to 90% energy savings, and will also reduce the amount of damage to the flora and fauna. Tests have shown that soil temperatures exceeding 70C will be needed to protect against germination of weed seeds. For band heating such a treatment in 50 cm rows requires about 5.8 GJ/ha. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2005 |
URL: http://orgprints.org/10005/1/10005.pdf |
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| Melander, Bo. |
| This paper reviews major results achieved with physical weed control methods and strategies especially adapted for horticultural and agricultural crops. Mechanical methods, such as weed harrowing and inter-row hoeing, have provided promising results in cereals, pulse and oil seed rape, particularly when they are part of a strategy that also involves cultural methods such as fertiliser placement or crop seed vigour. In row crops, intra-row weeds constitute a major challenge, and research has mainly aimed at replacing laborious hand weeding with mechanization. A number of investigations have focussed on optimising the use of thermal and mechanical methods against intra-row weeds. And new methods are now under investigation such as robotic weeding for row... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/9998/1/9998.pdf |
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| Grosse, Meike; Haase, Thorsten; Heß, Jürgen. |
| If farmers want to use reduced tillage in organic agriculture, they often face great challenges in weed control. One goal of the European research project TILMAN ORG (www.tilman-org.net) was to develop a more efficient weed management and increased biodiversity through improved use of green manures in different systems of reduced tillage. In a repeated one year trial on the research farm of University of Kassel the effects of different green manure species and different tillage systems on weed cover, density and biomass as well as yield of a subsequent main crop were examined. Sinapis alba, Trifolium resupinatum and Vicia sativa were tested as green manure species. Bare fallow served as control. After the green manures the main crop oat was sown in four... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil tillage; Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/23876/1/23876_Grosse%20et%20al_MM.pdf |
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| Schou, Anders. |
| I Økologisk Rådgivning har vi også i år gennemført et forsøg med ukrudtsbekæmpelse i lupin. Forsøget skal medvirke til at forbedre strategien for ukrudtsbekæmpelse i lupin. I forsøget er sorterne Rose og Boruta sået på to forskellige rækkeafstande, og ukrudtsbekæmpelsen er sket ved strigling, radrensning eller strigling i kombination med radrensning. Begge sorter er af den forgrenede type, der bliver noget tættere og konkurrerer bedre mod ukrudtet end sorter af den ugrenede type. |
| Tipo: Report chapter |
Palavras-chave: Pasture and forage crops; Weed management. |
| Ano: 2008 |
URL: http://orgprints.org/27508/6/27508.pdf |
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| Cormack, William F. |
| This report was presented at the UK Organic Research 2002 Conference. Perennial weeds with spreading root systems, e.g. Cirsium arvense, are difficult to control in organic arable rotations, particularly in those without grazed leys. Competitive crops and repeated mowing are proven methods of control that can be applied to the legume fertility-building crops in stockless rotations. An experiment at ADAS Terrington in 2000 compared a standard treatment of mowing at 45 cm legume height (x4) with mowing every two weeks (x8), and mowing when thistle flower buds were visible (x3). Thistle shoot numbers counted in July 2001 were around 75% less than at start of mowing in April 2000 (mean of 9.5 shoots per m2). The results suggest that achieving and maintaining a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2002 |
URL: http://orgprints.org/8407/1/cormack_mowing_creeping_thistle.pdf |
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| Rasmussen, Ilse A.; Holst, Niels. |
| We developed a simple model to predict seed production from seedling density and estimated its six parameters for Chenopodium album and Papaver rhoeas from literature data, supplemented with field data on P. rhoeas seed production in Denmark. Parameter values were specified by their expected ranges rather than just point estimates, which enabled us to determine the expected ranges of seed production at given seedling densities. The model will be incorporated into a larger model framework presented earlier for a more complete description of annual weed seedbank dynamics in a crop rotation. We found the seed production (y) of P. rhoeas to be larger than reported earlier from UK; the relation to weed biomass (x) per m2 was curvilinear, y=6015∙x0.8153 seeds... |
| Tipo: Journal paper |
Palavras-chave: Weed management. |
| Ano: 2003 |
URL: http://orgprints.org/3434/1/3434.doc |
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| Kristiansen, Paul Erik. |
| Weed management is a major constraint in organic production. It can be expensive and time-consuming and severe crop yield losses may be incurred when weeds are not adequately controlled. Research on organic weed management (OWM) in herb and vegetable production is increasing internationally, although very little work has been done in Australia to assess current OWM knowledge among growers, and to test the efficacy and cost effectiveness of the weed management practices used by organic growers. The project described here sought to fill these knowledge gaps by reviewing the existing industry and scientific literature, conducting a national mail survey of organic growers regarding OWM attitudes and practices, and by carrying out field and glasshouse... |
| Tipo: Thesis |
Palavras-chave: Weed management; Vegetables. |
| Ano: 2003 |
URL: http://orgprints.org/4829/1/4829.pdf |
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| Registros recuperados: 816 | |
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