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Dissertations / Theses on the topic 'Weeds Cultural control'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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1

Tripp, Timothy A. "Cultural control of broadleaf weeds in turfgrass swards." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ27549.pdf.

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2

Mkhonta, Vusumuzi Meshack. "The biology and cultural control of grass-weeds in smallholder maize cropping systems." Thesis, University of Reading, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430913.

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3

Gaongalelwe, Motlhasedi Olebile. "Effect of delayed sowing and increased crop density on weed emergence and competition with wheat." Title page, table of contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09AFM/09afmg2118.pdf.

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4

Lacroix, Mireille 1958. "Cropping to suppress yellow nutsedge (Cyperus esculentus L.)." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65450.

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5

Neeser, Christophe. "Rhizome bud production and growth characteristics of clonal colonies in two biotypes of quackgrass (Elytrigia repens (L.) Nevski)." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56676.

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This study examined the effect of density on rhizome bud production in quackgrass (Elytrigia repens (L.) Nevski). The treatments consisted of two biotypes (L8 and L9), and nine density levels ranging from 1 to 22 plants m$ sp{-2}$. The results showed that bud production per plant diminished with increasing density in both biotypes. However, biotype L8 was less productive at low densities, but almost equal to L9 at higher densities. A second experiment was undertaken to measure the expansion of clonal colonies and the distribution of shoots within these colonies. For both biotypes the growth ra

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6

Bradley, Kevin Wayne. "Characterization of the Mechanism of Resistance of a Johnsongrass (Sorghum halepense) Biotype to Selected Graminicides in Virginia and Response of Mugwort (Artemisia vulgaris) to Specific Herbicidal and Cultural Control Strategies." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/27343.

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Johnsongrass [Sorghum halepense (L.) Pers.] and mugwort (Artemisia vulgaris L.) are both rhizomatous perennial weeds that are capable of rapidly colonizing a variety of different environments. Separate experiments were conducted throughout Virginia from 1996 to 1999 to determine more effective methods for reducing infestations of these perennial weeds in the future. Field and greenhouse experiments conducted on a resistant johnsongrass population discovered in New Kent County, Virginia revealed that this biotype exhibits low levels of resistance to the aryloxyphenoxypropionate (APP) herbicid

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7

Oliveira, Odiluza Maria Saldanha de. "Capacidade competitiva de cultivares de feijão-caupi (Vigna unguiculata (L.) Walp) combinada com espaçamento na supressão de plantas daninhas." Universidade Federal do Amazonas, 2014. http://tede.ufam.edu.br/handle/tede/4360.

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Submitted by Alisson Mota (alisson.davidbeckam@gmail.com) on 2015-07-02T20:53:00Z No. of bitstreams: 1 Tese - Odiluza Maria Saldanha de Oliveira.pdf: 778336 bytes, checksum: d9880fba205424a41ded1fcbc88afd94 (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-10T18:59:56Z (GMT) No. of bitstreams: 1 Tese - Odiluza Maria Saldanha de Oliveira.pdf: 778336 bytes, checksum: d9880fba205424a41ded1fcbc88afd94 (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-10T19:10:

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8

Brak, Bastiaan. "Modelling weed population dynamics : impact of cultural control and climate change." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/2743/.

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Over the last three decades, concern about food safety and the management of natural resources has increased. Instigated by the previous EU pesticide review, (EU 91/414) carrot growers in particular have been hit by the revocation of several post-emergence herbicides. There is real concern among growers that this may impair profits. To identify alternative weed control strategies, a modelling framework capable of simulating the impact of alternative weed management strategies on long-term weed population dynamics, was proposed. Scentless mayweed (Tripleurospermum inodorum) was chosen as model

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9

Kolo, Musa G. Matthew. "A comparative study of the biology of Cirsium arvense (L.) Scop. and Equisetum arvense L. in relation to their cultural control." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262613.

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10

Adoryan, Marcio Luiz. "Efeitos de densidades de Aeschynomene rudis Benth e seu controle com o herbicida Ethoxysulfuron em duas épocas de aplicação na cultura do arroz (Oryza sativa L.) irrigado." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-14012005-082507/.

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Com o objetivo de avaliar os efeitos de densidades de Aeschynomene rudis Benth. na cultura do arroz irrigado e a eficiência do herbicida ethoxysulfuron aplicado em duas épocas como pós-emergente, foi instalado um experimento no município de Taubaté, região do Vale do Paraíba-SP, no ano agrícola de 2001/2002. O cultivar de arroz Epagri 109 e a planta daninha A. rudis foram semeados em 30/10/2001 em solo drenado. Os tratamentos foram constituídos de quatro densidades de A. rudis (3, 6, 12 e 24 plantas por metro quadrado) e duas épocas de aplicação do herbicida ethoxysulfuron dentro de cada densi

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11

Dias, Ana Carolina Ribeiro. "Germinação, competitividade com a cultura da soja e resposta biológica a aplicações de glyphosate para plantas de trapoeraba (Commelina benghalensis L.)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-09022009-160509/.

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Em áreas onde o herbicida glyphosate é utilizado freqüentemente, populações da planta daninha trapoeraba (Commelina benghalensis L.) têm sido selecionadas, devido à tolerância da espécie à ação deste herbicida. Neste sentido, há necessidade de utilização de alternativas de manejo, as quais, por sua vez, são dependentes de conhecimentos profundos sobre a biologia da espécie; e também do controle químico eficiente em condições de pós-emergência, cuja eficácia depende, sobretudo, do estádio de desenvolvimento da planta daninha no momento da aplicação. Desta forma, este trabalho foi desenvolvido c

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12

Campos, Caio Ferraz de [UNESP]. "Períodos de interferência de uma comunidade infestante na cultura do milho em primeira e segunda safras." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/86446.

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Made available in DSpace on 2014-06-11T19:22:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-05-02Bitstream added on 2014-06-13T20:09:15Z : No. of bitstreams: 1 campos_cf_me_botfca.pdf: 502483 bytes, checksum: ecf5c163076e65ba5973a74e8b1df1f8 (MD5)<br>A interferência de plantas daninhas com a cultura do milho pode refletir em perdas relevantes na produtividade de grãos. Em ecossistemas agrícolas, a cultura e as plantas daninhas possuem suas demandas por água, luz, nutrientes e, na maioria das vezes, um ou mais desses fatores de crescimento estão disponíveis em quantidade insuficien

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13

Campos, Caio Ferraz de 1984. "Períodos de interferência de uma comunidade infestante na cultura do milho em primeira e segunda safras /." Botucatu, 2013. http://hdl.handle.net/11449/86446.

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Orientador: Dagoberto Martins<br>Banca: Pedro Luis da Costa Aguiar Alves<br>Banca: Sílvio José Bicudo<br>Resumo: A interferência de plantas daninhas com a cultura do milho pode refletir em perdas relevantes na produtividade de grãos. Em ecossistemas agrícolas, a cultura e as plantas daninhas possuem suas demandas por água, luz, nutrientes e, na maioria das vezes, um ou mais desses fatores de crescimento estão disponíveis em quantidade insuficiente até mesmo para o próprio desenvolvimento da cultura, o que estabelece, assim, a Interferência. O objetivo desse trabalho foi determinar o Período An

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14

Carbonari, Caio Antonio [UNESP]. "Eficácia do herbicida amicarbazone em aplicação conjunta com a colheita de cana-de-açúcar no controle das principais plantas daninhas da cultura." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/97188.

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Made available in DSpace on 2014-06-11T19:28:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-02-05Bitstream added on 2014-06-13T20:58:38Z : No. of bitstreams: 1 carbonari_ca_me_botfca.pdf: 2020066 bytes, checksum: 543976b2b8888c3c6c66975a6d66c2fb (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Os herbicidas aplicados em pré-emergência em cana-crua tem como principais limitações a retenção parcial dos produtos na palha (mesmo após chuvas) e a dependência de chuvas após a aplicação para que o herbicida atinja o solo. Para minimizar estas limitações, fo

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15

Inácio, José Miguel Mira Lopes. "Controlo de infestantes em pós-emergência na cultura do grão-de-bico (Cicer Arietinum L.)." Master's thesis, Universidade de Évora, 2021. http://hdl.handle.net/10174/29690.

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O presente trabalho foi levado a cabo na Herdade do Passinho (Elvas), pertença do INIAV (Instituto Nacional de Investigação Agrária e Veterinária) no ano agrícola de 2018/2019 e consistiu no estudo do efeito de dois herbicidas comerciais, no caso o Agil® e o Lentagran®, cujas substâncias ativas são o propaquizafope e o piridato, respetivamente. A primeira destas duas substâncias ativas, está indicada para controlar infestantes de folha estreita (monocotiledóneas) e a segunda, para controlar infestantes de folha larga (dicotiledóneas) em pós-emergência, na cultura do grão-de-bico (Cicer arietin

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16

VanLieshout, Lawrence Anthony. "Weed control in no-till corn as affected by cultivation, herbicide banding, and cover crop suppression." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12172008-063419/.

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17

Carbonari, Caio Antonio 1982. "Eficácia do herbicida amicarbazone em aplicação conjunta com a colheita de cana-de-açúcar no controle das principais plantas daninhas da cultura /." Botucatu : [s.n.], 2007. http://hdl.handle.net/11449/97188.

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Resumo: Os herbicidas aplicados em pré-emergência em cana-crua tem como principais limitações a retenção parcial dos produtos na palha (mesmo após chuvas) e a dependência de chuvas após a aplicação para que o herbicida atinja o solo. Para minimizar estas limitações, foi desenvolvido um sistema de aplicação de herbicidas adaptado à colhedora de modo que as operações de colheita e aplicação do herbicida fossem feitas simultaneamente. A aplicação ocorre entre o sistema de coleta e o lançador de palha da colhedora, atingindo o solo e sendo coberto pela palhada. O objetivo deste trabalho foi avalia

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18

Michelon, Micheli Fochesato. "Controle químico de azevém e buva na cultura da macieira." Universidade do Estado de Santa Catarina, 2017. http://tede.udesc.br/handle/handle/2430.

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Submitted by Claudia Rocha (claudia.rocha@udesc.br) on 2018-03-05T13:23:06Z No. of bitstreams: 1 PGPV17MA229.pdf: 2166910 bytes, checksum: 06e93115f119a67afe2c49fb1b5e6896 (MD5)<br>Made available in DSpace on 2018-03-05T13:23:06Z (GMT). No. of bitstreams: 1 PGPV17MA229.pdf: 2166910 bytes, checksum: 06e93115f119a67afe2c49fb1b5e6896 (MD5) Previous issue date: 2017-04-27<br>Capes<br>Apple crop has a great economical importance worldwide. Weed control is fundamental to avoid yiels losses. There are few herbicides registered for use in apple culture, although many apple producers use herbicides w

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19

Zeeshan, Kashif. "Optimization of the production of Plectosporium alismatis, a potential mycoherbicide against Alismataceous weeds in rice." Brest, 2010. http://www.theses.fr/2010BRES2002.

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L’objectif de cette thèse était le développement d’un mycoherbicide efficace contenant les propagules stables de Plectosporium alismatis, un mycoherbicide potentiel de riz. Le champignon produit des conidies (109 L-1) et des chlamydospores (108 L-1) dans les erlens. Le nitrate est essentiel pour la production de chlamydospores qui ont une survie élevée (6. 6% germination après 4 mois) comparée aux conidies. Des agrégats hétérogènes (contenant les clilamydospores) ont été aussi observés en milieu liquide contenant du nitrate. Ces agrégats pouffaient augmenter la résistance de P. Aljymatis contr

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20

Fonseca, Luciano Ferreira da. "Seletividade de herbicidas na cultura da batata." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/12242.

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Weed competition occurs during potato planting and development, demanding for the application of specific herbicides, especially pre-emergent ones. There are few herbicides registered for this crop and the cultivars present different selectivity levels to them. Thus, the study of selectivity and weed management are fundamental for obtaining high yields. This study evaluated the selectivity and weed control with the use of pre-emergent herbicides on potatoes. Two experiments were done in Perdizes-MG, using the cultivar Innovator. The first one was installed on August 2014 to evaluate pre-emerge

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21

Lemos, João Paulo. "Eficiência de roçadas no controle de Bidens pilosa e Commelina benghalensis em competição com a cultura do milho." Universidade Federal de Viçosa, 2011. http://locus.ufv.br/handle/123456789/4542.

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Made available in DSpace on 2015-03-26T13:39:41Z (GMT). No. of bitstreams: 1 texto completo.pdf: 3353008 bytes, checksum: 78686b70f2516da973341b63fed089b2 (MD5) Previous issue date: 2011-02-21<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Among the factors that difficult the expansion of the area cultivated with organic corn is the control of weeds. On this crop system only the cultural and mechanical control methods are allowed, which most of the times are little efficient and not adequate to the direct planting system. On this work the efficiency of weed clearing was

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22

Silva, Kaliane de Souza. "Eficiência de herbicidas para a cultura do feijão-caupi (Vigna unguiculata (L.) Walp.)." Universidade Federal Rural do Semi-Árido, 2012. http://bdtd.ufersa.edu.br:80/tede/handle/tede/59.

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Made available in DSpace on 2016-08-12T19:15:21Z (GMT). No. of bitstreams: 1 KalianeSS_DISSERT.pdf: 2580771 bytes, checksum: e05df91d2e689c26bd47109c48a1efe5 (MD5) Previous issue date: 2012-02-16<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>In order to evaluate the efficiency of weedkillers in the culture of caupi beans (Vignaunguiculata (L.)Walp.), an experiment was conducted in split plots distributed in randomized complete block design with four replications and the plots were evaluated nine weedkillers/mixtures (S-metolachlor,bentazon + imazamox, S-metolachlor + be

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23

Cieslik, Lucas Fernando. "Interferência de fatores morfoambientais e horários de aplicação de fluazifop-p-butyl e fomesafen no controle de infestantes, seletividade e lucratividade da cultura do feijoeiro (Phaseolus vulgaris L.)." Universidade Tecnológica Federal do Paraná, 2012. http://repositorio.utfpr.edu.br/jspui/handle/1/263.

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Fundação Araucária, CNPQ<br>Plantas daninhas competem com as cultivadas e dentre as influências negativas desse convívio está a redução da produtividade das culturas. O controle químico é a principal forma de gestão das infestantes na cultura do feijão (Phaseolus vulgaris L.). Sua eficácia depende de uma série de fatores, entre eles: condições ambientais (em função dos horários de aplicação) no momento da aspersão do herbicida e doses utilizadas. Um programa de pesquisa foi desenvolvido no curso de Agronomia da UTFPR, Pato Branco, PR, durante a safra 2010/11 com os objetivos gerais de analisar

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24

Ottman, Michael. "Small Grain Growth and Development." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/147020.

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25

Cheriere, Timothée. "Approche fonctionnelle du choix de l’espèce associée au soja et arrangement spatial dans les associations de cultures : impact sur les services obtenus pendant et après la culture. Species choice and spatial arrangement in soybean-based intercropping: Levers that drive yield and weed control." Thesis, Angers, 2020. http://www.theses.fr/2020ANGE0018.

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La diversification des systèmes de culture est un enjeu important pour améliorer leur durabilité. Cependant, l’introduction de cultures de diversification est confrontée à de nombreux freins. Le soja, une légumineuse produisant des graines riches en protéines, est une culture de diversification potentielle qui bénéficie d’un contexte favorable à son développement en France. Mais la maitrise de la croissance des adventices et la stabilisation des rendements sont des défis importants pour les producteurs. Afin de pallier ces problèmes, nous proposons d’utiliser l’association de cultures comme ou

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26

Meiss, Helmut. "Diversifying crop rotations with temporary grasslands : potentials for weed mangement and farmland biodiversity." Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00575607.

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Crop rotation may be used to prevent the continuous selection of particular weed species adapted to one crop type. This might be useful for weed management, economy in herbicide applications and promoting biodiversity. Common simple crop sequences might be diversified by introducing perennial forage crops. Impacts of such perennial crops on weeds were studied with four approaches : 1) Large-scale weed surveys in 632 fields in western France showed that weed species composition differed most strongly between perennial alfalfa crops and annual crops. Comparisons of fields before, during and afte

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27

Achard, Raphaël. "Etude du fonctionnement d'associations entre le bananier et une couverture vivante ; évaluation des potentialités et stratégies d'utilisation de plantes de service pour contrôler les adventices." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLA036/document.

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L’objectif de cette thèse est de proposer une démarche pour identifier des plantes de service (Pds) utilisables en couverture vivante pour contrôler les adventices en bananeraie. Nous avons d’abord quantifié les effets de compétition réciproque entre le bananier et une couverture contrôlée par fauchage pour Brachiaria decumbens et Cynodon dactylon. Ces couverts ont eu des effets dépressifs sur la nutrition azotée du bananier et la productivité en premier cycle, le second cycle n’étant pas affecté. Dans un deuxième temps nous avons caractérisé au champ, en plantes isolées, la croissance en biom

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28

Dayoub, Elana. "Compétitivité des légumineuses vis-à-vis des adventices : traits impliqués dans la capture précoce de l’azote minéral du sol et complémentarité des traits entre espèces dans des associations légumineuse-non légumineuse." Thesis, Angers, 2017. http://www.theses.fr/2017ANGE0031/document.

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Accroître la compétitivité des cultures vis-à-vis des adventices est un levier essentiel pour concevoir des systèmes de culture moins dépendants des herbicides. Les légumineuses sont des espèces majeures pour diversifier les systèmes mais elles sont réputées peu compétitives vis-à-vis des adventices. Cependant la variabilité entre espèces en particulier pendant la phase précoce a été peu explorée. Ce travail vise à i) étudier, via deux expérimentations en rhizotrons en serre, les traits impliqués dans la croissance et l’acquisition d’azote (N) en début de cycle chez une gamme d’espèces de légu

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Neyret, Margot. "Adventices et érosion du sol dans un agroécosystème montagneux du Nord de la Thaïlande : une étude multidisciplinaire." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS285.

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L’intensification et l’expansion rapide des plantations d’Hevea brasiliensis dans les régions montagneuses d’Asie du sud-est ont conduit à d’importantes dégradations de la biodiversité et des sols. Les adventices remplissent de nombreux services écosystémiques, par exemple en favorisant la protection du sol. Toutefois, les facteurs déterminants les communautés adventices et les interactions entre ces communautés et les processus d’érosion du sol sont mal connus. Deux fois par an entre 2016 et 2018, nous avons réalisé des inventaires botaniques et des caractérisations de sol à Huai Lang, au nor

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Bernhard-Bitaud, Corinne. "Modifications de la matière organique et conséquences sur l'adsorption de l'atrazine dans un sol brun de prairie mis en culture." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL128N.

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En conditions de plein champ après retournement d'une prairie permanente, on compare pendant cinq ans l'évolution des propriétés d'un sol brun entre deux parcelles, l'une exempte de tout traitement chimique, l'autre désherbée à l'atrazine. On observe au cours du temps une diminution de la stabilité structurale (-30%) et de la teneur en matière organique (- 20%), ainsi qu'une augmentation du rapport isotopique ¹³C/¹²C, du taux d'humification et de l'extractibilité des acides humiques. Toutefois, l'étude des caractéristiques chimiques de la matière organique ne révèle pas de différence majeure e

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31

Ugarte, Nano Claudia Carolina. "Etude de la variabilité des propriétés physiques et hydrodynamiques d'un sol argileux sous l'effet de conduites en protection intégrée contre les adventices." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS003/document.

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Les systèmes de culture en Protection Intégrée de Cultures contre les adventices (systèmes PIC-adventices) sont d’un grand intérêt pour réduire significativement l’utilisation des herbicides en les substituant par une combinaison complexe de différentes techniques culturales. L’objectif principal de notre travail a été de contribuer au volet environnemental de l’évaluation multicritère des systèmes PIC-adventices mis en place depuis 2000 sur le domaine expérimental de l’INRA à Bretenière (21). La variabilité des propriétés physiques et hydrodynamiques qui interviennent dans le transfert de l’e

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32

Tasli, Samira. "Devenir de l'atrazine en culture de mais : études en plein champ -site de la Cote Saint André, Isère, France- et au laboratoire : recherche de solutions alternatives de traitement." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10209.

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Le travail presente dans ce memoire concerne une etude du devenir d'un herbicide du mais, l'atrazine en condition de plein-champ: bilan et modes de dissipation. Des experimentations de laboratoire mettant en jeu des methodes diverses (suivi de l'atrazine #1#4c, couches minces et colonnes de terre, lysimetre non remanie) permettent d'etayer les resultats obtenus sur la parcelle experimentale du site observatoire des pollutions diffuses du lycee agricole de la cote saint andre (isere, france) ou a ete suivie pendant 3 ans la composition en herbicide et metabolites du sol sur 1 metre de profondeu

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Green, Jessica M. (Jessica Marie). "Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems." Thesis, 2010. http://hdl.handle.net/1957/19544.

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Weed management in sustainable farming systems often requires the integration of several different pest management techniques. Cultural, biological, and chemical pest control efforts can be utilized to contribute to the common goal of reducing weeds in vegetable row crop systems. This research addresses how common disturbances such as tillage and insecticide use affect: carabid beetle assemblages; predation of weed seeds by invertebrates; and weed seed recruitment. Field experiments were conducted over three years at two different locations on the OSU Vegetable Research Farm, Linn Co., OR. We

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