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Domates üretiminde sorun olan yabancı otlara karşı organik tarıma uygun bazı mücadele yöntemlerinin araştırılması Organic Eprints
Arslan, Zübeyde Filiz; Uygur, F.Nezihi.
Bu çalışma; 2007-2009 yıllarında Adana’da sera ve tarla domatesinde sorun olan yabancı otlara karşı organik tarıma uygun bazı mücadele yöntemlerinin etkisini belirlemek amacıyla yürütülmüştür. Çalışmada etkisi araştırılan yöntemler;solarizasyon, malçlama (malç tekstili, mısır sapı malçı ve yerfıstığı kabuğu),çapalama (el çapası, keser çapa, kazayağı, freze) ve fırçalama (yatay dönen fırçalama aleti) uygulamalarıdır. Çalışmada bu uygulamaların genel yabancı otlara, deneme alanındaki önemli yabancı ot türlerine ve domates verimine etkileri belirlenmiştir. Yürütülen çalışmalar sonucunda sera ve tarla domatesinde en etkili uygulamanın malç tekstili olduğu, bu materyalin uygulandığı alanlarda hiç yabancı ot çıkmadığı, solarizasyonun tek yıllık yabancı otları...
Tipo: Thesis Palavras-chave: Weed management.
Ano: 2011 URL: http://orgprints.org/24239/1/Z%C3%BCbeyde%20Filiz%20Arslan.pdf
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Dormancy of vegetative reproduction in some perennial weeds Organic Eprints
Fogelfors, Håkan; Brandsætter, Lars Olav; Graglia, Scientist Enrico; Vanhala, Petri; Salonen, Jukka; Håkansson, Sigurd.
In a joint experiment between Norway, Denmark, Finland and Sweden the dormancy of vegetative reproduction in Cirsium arvense, Sonchus arvensis and Elymus repens was studied during the latter part of the vegetation period.The aim of the study was to achieve a more efficient control of these weed species by knowing their reproduction behaviour in the autumn.
Tipo: Conference paper, poster, etc. Palavras-chave: Research methodology and philosophy; Weed management.
Ano: 2003 URL: http://orgprints.org/1730/1/Dormancy.pdf
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Down on the Farm, Will Robots Replace Immigrant Labor? Organic Eprints
Jørgensen, Rasmus N..
You´d think that the most challenging, the lowest-paid labor in the U.S. was safe from automation, but as robots become increasingly sophisticated that could change.
Tipo: Web product Palavras-chave: Crop husbandry; Weed management.
Ano: 2011 URL: http://orgprints.org/20041/3/20041.pdf
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Drought Tolerance and Perennial Weed Management Organic Eprints
Nkurunziza, Libère; Andreasen, Christian; Liu, Fulai; Streibig, Jens Carl.
The aim of this study was to investigate the effect of controlled soil water deficits on sprouting and shoot growth of Canada thistle, coltsfoots and quackgrass. A gradient of soil water contents was created by establishing different densities of barley. The plants were harvested 14 days after watering was stopped. On Canada thistle and coltsfoots, relative water content (RWC) in leaves was measured prior to harvest and biomass of all weed shoots were recorded at harvest. In terms of shoot biomass and leaf RWC quackgrass was drought tolerant while coltsfoot was drought sensitive and Canada thistle was between the two. The barley cover crop could have had a competitive effect upon the growth of the weeds; the effect, however, was not detrimental compared to...
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2011 URL: http://orgprints.org/18363/1/Nkurunziza_Drought_Perennial_3.pdf
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Dynamic general equilibrium analysis of improved weed management in Australia's winter cropping systems AgEcon
Wittwer, Glyn; Vere, David T.; Jones, Randall E.; Griffith, Garry R..
A recent analysis indicated that the direct financial cost of weeds to Australia’s winter grain sectorwas approximately $A1.2bn in 1998–1999. Costs of thismagnitude represent a large recurring productivity loss in an agricultural sector that is sufficient to impact significantly on regional economies.Using amulti-regional dynamic computable general equilibrium model, we simulate the general equilibrium effects of a hypothetical successful campaign to reduce the economic costs of weeds. We assume that an additional $50m of R&D spread over five years is targeted at reducing the additional costs and reduced yields arising from weeds in various broadacre crops. Following this R&D effort, one-tenth of the losses arising from weeds is temporarily...
Tipo: Article Palavras-chave: CGE modelling; Dynamics; Weed management; Crop Production/Industries.
Ano: 2005 URL: http://purl.umn.edu/118584
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Economic Aspects of Physical Intra-Row Weed Control in Seeded Onions Organic Eprints
Melander, Senior scientist Bo.
The paper presents a model to calculate the costs for weed control in organic row crops. The model makes it possible to analyse the economic consequences of different weed control strategies in row crops. Particularly the time needed for hand-weeding had a strong impact on the costs.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 1998 URL: http://orgprints.org/1510/1/IFOAM_98_NYVERSION1.pdf
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Efektīvākās nezāļu ierobežošanas metodes – gudri plānota augu maiņa plus ecēšana pareizajā laikā Organic Eprints
Zarina, Livija.
Since Kelmeni farm is a good example in field crop management for other organic farms, it was invited to participate in the Core Organic Plus project, named PRODIVA, in which weeds were surveyed in more than 200 fields across regions in Finland, Sweden, Germany, Denmark, Poland and Latvia; all bordering the Baltic Sea (http://projects.au.dk/coreorganicplus/research-projects/prodiva/). In context of weed control farmer using all possible crop diversity experiences– undersowing, crop mixtures, diverse rotation, winter cover.
Tipo: Other Palavras-chave: Farming Systems; Weed management.
Ano: 2018 URL: http://orgprints.org/33580/1/successtory_nezalu%20ierobezosana_veiksmes%20piemers.pdf
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EFFECT OF CONSERVATION PRACTICES ON FUNCTIONAL DIVERSITY AND ASSEMBLY OF WEED COMMUNITIES: A DATABASE OF FUNCTIONAL TRAITS Organic Eprints
Sans, F. Xavier; Armengot, Laura; Blanco-Moreno, José Manuel; Bocci, Gionata; Carlesi, Stefano; Barberi, Paolo.
The incorporation of conservation agriculture techniques (e.g. reduced tillage and green manures) in organic farming systems brings many benefits to the environment and reduces energy use (Holland, 2004). One of the main drawbacks of the use of reduced tillage is the potential increase in weed infestation and shifts in the weed community composition, sometimes to the benefit of more difficult-to-control species (Bàrberi, 2002; Peigné et al., 2007; Sans et al., 2011). However, weeds have an important role in maintaining farmland functional biodiversity (Bàrberi et al, 2010; Caballero et al., 2010), and this should be balanced with their potential negative impact on crop yield and quality. Within the frame of the European project “Reduced tillage and green...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services; Weed management.
Ano: 2014 URL: http://orgprints.org/23834/1/23834_MM.pdf
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Effect of conservation tillage and peat application on weed infestation on a clay soil Organic Eprints
Vanhala, Petri; Pietola, Liisa.
Amendment of soil with peat is an attempt to avoid crop yield variation in the transition to conservation tillage, as it improves seedbed conditions and crop growth in drought-sensitive clay soils. Weed infestations were compared in 1999-2000 between the original and peat-amended clay (Typic Cryaquept, very fine, illitic or mixed) under different autumn tillage systems in an oats-barley rotation. In a field experiment, sphagnum peat (H = 4) had been spread (0.02 m 3 m -2 ) on the soil surface in August 1995. Tillage treatments included mouldboard ploughing (to 20 cm) and stubble cultivations of different working depths (8 or 15 cm) and intensity (once or twice). Weed biomass and density were assessed by an area of 1 m 2 per field plot in August 1999-2000...
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2003 URL: http://orgprints.org/16752/1/vanhala.pdf
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Effect of crop rotation on soil nutrient balance and weediness in soddy podzolic organic farming fields Organic Eprints
Zarina, Livija; Zarina, Liga.
The nutrient balance in different crop rotations under organic cropping system has been investigated in Latvia at the Institute of Agricultural Resources and Economics since 2006. Latvia is located in a humid and moderate climatic region where the rainfall exceeds evaporation (soil moisture coefficient > 1) and the soil moisture regime is characteristic with percolation. The average annual precipitation is 670-850 mm. The average temperature varies from -6.7 ◦ C in January to 16.5 ◦ C in July. The growing season is 175 - 185 days. The most widespread are podzolic soils and mainly they are present in agricultural fields in all regions of Latvia. In a wider sense the goal of the soil management in organic farming is a creation of the biologically active...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2017 URL: http://orgprints.org/33076/1/EGU2017-13096-1.pdf
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Effect of crop species and management practices on perennial weeds in organic farming Organic Eprints
Vanhala, Petri; Lötjönen, Timo; Salonen, Jukka.
In order to study the biology and non-chemical control of perennial weeds, a three-year field experiment was established in 2001 at Vihti, southern Finland. The experiment was placed in a clay soil field under organic production, infested moderately with Cirsium arvense, Elymus repens and Stachys palustris, and heavily with Sonchus arvensis.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2003 URL: http://orgprints.org/11140/1/NJF1.pdf
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Effect of green manures on weeds, crop yields and soil properties in Estonia Organic Eprints
Tein, Berit; Eremeev, Viacheslav; Reintam, Endla; Talgre, Liina; Sanchez de Cima, Diego; Luik, Anne.
The aim of this research was to investigate the effect of different green manures and their combination with cattle manure on weeds, crop yields and soil properties in five-field crop rotation experiment of three different organic cropping systems.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Composting and manuring; Crop husbandry; Soil; Weed management.
Ano: 2013 URL: http://orgprints.org/26841/1/EULS_2013_Birmingham_poster.pdf
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Effect of mowing a legume fertility-building crop on shoot numbers of creeping thistle (Cirsium arvense (L.) Scop.) Organic Eprints
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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Effect of organic crop rotations on long-term development of the weed seedbank Organic Eprints
Younie, David; Taylor, Dick; Coutts, Michael; Matheson, Stella; Wright, G; Squire, Geoff.
Changes in the weed seedbank were monitored between 1991 and 1998 in two experiments that were established to compare organic crop rotations at two sites in NE Scotland. Two rotations, replicated twice at each site, were compared and all courses of both rotations were present every year. There were relatively minor changes in weed species diversity over time, but major changes in seedbank abundance. Weed seed numbers were relatively low in rotations with a high proportion of grass/clover ley. Differences in level of seedbank across the rotation were relatively predictable at Tulloch but much less so at Woodside where factors such as the effect of the grass/clover ley seemed to play a lesser role. Other factors, such as weather and its influence on the...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2002 URL: http://orgprints.org/6171/1/Younie2002Effect.pdf
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Effect of permanent ground cover on agronomic properties and soil fertility in an organic peach orchard Organic Eprints
Parveaud, Claude-Eric; Gomez, Christelle; Bussi, Claude; Capowiez, Yvan.
In conventional orchards, weeds on the raw are mainly controlled with chemical herbicides because of their efficiency, their low cost and ease of use. The most common method in organic orchard to eliminate weeds on the raw consists of tillage operations. However, some drawbacks of these mechanical methods have been demonstrated: (1) the energetic cost (non-renewable energy) is high, (2) this method is time-consuming, (3) tillage interferes with the development of superficial roots and can hurt the trunk, (4) the physical, chemical and biological properties of the soil can be disturb and (5) erosion and runoff potentially increase. Cover crops are interesting alternatives to manage ground cover but the effect on the agronomic properties and the soil...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil tillage; Weed management.
Ano: 2010 URL: http://orgprints.org/17223/1/Poster_Soil_Fertility_IHC_V4.pdf
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Effect of repeated hoeing on growth of Cirsium arvense Organic Eprints
Graglia, Enrico; Melander, Bo; Grøndal, Henrik; Jensen, Rikke K..
Infestation with Cirsium arvense in organic cropping is an increasing problem in many parts of Europe. In the present study, repeated hoeing during the first part of the growing season is suggested as a mechanical control strategy, aiming at diminishing the regenerative capacity of C. arvense. Results showed a linear relationship between the number of hoeing passes and the aboveground biomass of C. arvense in the subsequent year. However, the strong effect on the biomass of C. arvense was not followed by an increased crop yield. A low initial density of C. arvense, which did not cause any measurable yield loss, most likely explains this
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management; Denmark.
Ano: 2004 URL: http://orgprints.org/3944/1/3944.htm
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Effect of Rhizome Fragmentation, Clover Competition, Shoot-Cutting Frequency, and Cutting Height on Quackgrass (Elymus repens) Organic Eprints
Ringselle, Bjørn; Melander, Bo.
Quackgrass is a problematic agricultural weed in the temperate zones of the world and is difficult to control without herbicides or intensive tillage. However, it may be possible to control quackgrass with less environmental impact by combining multiple low-intensity control methods. A pot experiment was conducted in July to October 2012 and repeated in June to September 2013 to investigate the effect of rhizome fragmentation, competition from white clover, shoot-cutting frequency, and cutting height on quackgrass. Rhizome fragmentation was expected to result in more, but weaker, quackgrass shoots that would be more vulnerable to shoot cutting and competition. However, by 20 d past planting, rhizome fragmentation did not change the total number of...
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2018 URL: http://orgprints.org/35058/1/Kolberg_et_al_Weed_Science.pdf
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Effect of vetch and broccoli in four-year rotation of organic cucurbitaceous and solanaceous vegetables under Mediterranean conditions Organic Eprints
Bilen, Emre; Özsoy, Nazire; Nazik Bayram, Ceren Ayşe; Ünal, Mehmet; Kaya, Seçkin; Duman, İbrahim; Aksoy, Uygun; Al-Bitar, Lina.
Vegetables are among the main ingredients of the Mediterranean cuisine and thus enlarging organic local markets increase their demand for a diversity of vegetables. Long-term rotations based mainly on vegetables are rather rare in the Mediterranean countries. A four year experiment was carried out between 2006 and 2010 at Ege University Department of Horticulture in cooperation with CIHEAM Mediterranean Institute of Bari. And two different pre-crops, broccoli and vetch were tested under an organic management system as compared to fallow during the autumn-winter period. The summer main crops were rotated between solanaceous and cucurbitaceous vegetables as tomato (2007), zucchini (2008) pepper (2009) and eggplant (2010). The experiment aimed at recommending...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Nutrient turnover; Weed management.
Ano: 2011
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Effect of White clover (Trifolium repens cv. Huia) cover crop on agronomic properties and soil biology in an organic peach orchard Organic Eprints
Parveaud, Claude-Eric; Gomez, Christelle; Bussi, Claude; Capowiez, Yvan.
In orchards, cover crops are interesting alternative strategies to tillage or chemical herbicides for managing weeds in the tree row. However, little is known about the effect of cover crops on agronomic properties and soil biology in organic orchards. To fill this gap, the effects of two weed managements, a White clover cover crop (CC) versus classical tillage practice (T) on the tree row, were assessed in an irrigated organic Peach orchard. White clover was sown in 2004, 2006 and 2009 in the tree row and ploughed in 2006 and 2008. Root density, earthworm density, water infiltration rate, nitrogen content and water availability were measured in the soil, in the tree row. In 2009, peach root density observed in the superficial layers was higher in CC...
Tipo: Journal paper Palavras-chave: Soil biology; Soil tillage; Biodiversity and ecosystem services; Weed management.
Ano: 2012 URL: http://orgprints.org/21132/1/64-Parveaud-Peach-CoverCrop-revised-version.pdf
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Effects of Arbuscular Mycorrhizal Fungi Inoculation on Redroot Pigweed on Sesame under salt stress Organic Eprints
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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