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Artykuły w czasopismach na temat "Suppressive soils"

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Ossowicki, Adam, Vittorio Tracanna, Marloes L. C. Petrus, Gilles van Wezel, Jos M. Raaijmakers, Marnix H. Medema, and Paolina Garbeva. "Microbial and volatile profiling of soils suppressive to Fusarium culmorum of wheat." Proceedings of the Royal Society B: Biological Sciences 287, no. 1921 (February 19, 2020): 20192527. http://dx.doi.org/10.1098/rspb.2019.2527.

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In disease-suppressive soils, microbiota protect plants from root infections. Bacterial members of this microbiota have been shown to produce specific molecules that mediate this phenotype. To date, however, studies have focused on individual suppressive soils and the degree of natural variability of soil suppressiveness remains unclear. Here, we screened a large collection of field soils for suppressiveness to Fusarium culmorum using wheat ( Triticum aestivum ) as a model host plant. A high variation of disease suppressiveness was observed, with 14% showing a clear suppressive phenotype. The
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Jauri, Patricia Vaz, Nora Altier, Carlos A. Pérez, and Linda Kinkel. "Cropping History Effects on Pathogen Suppressive and Signaling Dynamics in Streptomyces Communities." Phytobiomes Journal 2, no. 1 (January 2018): 14–23. http://dx.doi.org/10.1094/pbiomes-05-17-0024-r.

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Diseases remain a yield-limiting factor for crops despite the availability of control measures for many pathogens. Indigenous soil microorganisms can suppress some plant pathogens, yet there is little systematic information on the effects of cropping systems on disease-suppressive populations in soil. Streptomyces have been associated with suppression of plant diseases in several naturally occurring disease-suppressive soils. Pathogen-suppressive activity of Streptomyces communities is correlated with higher bacterial densities and with inhibitory phenotypes, driven by competition among indige
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Schlatter, Daniel, Linda Kinkel, Linda Thomashow, David Weller, and Timothy Paulitz. "Disease Suppressive Soils: New Insights from the Soil Microbiome." Phytopathology® 107, no. 11 (November 2017): 1284–97. http://dx.doi.org/10.1094/phyto-03-17-0111-rvw.

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Soils suppressive to soilborne pathogens have been identified worldwide for almost 60 years and attributed mainly to suppressive or antagonistic microorganisms. Rather than identifying, testing and applying potential biocontrol agents in an inundative fashion, research into suppressive soils has attempted to understand how indigenous microbiomes can reduce disease, even in the presence of the pathogen, susceptible host, and favorable environment. Recent advances in next-generation sequencing of microbiomes have provided new tools to reexamine and further characterize the nature of these soils.
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Hong, Shan, Hongling Jv, Xianfu Yuan, Jianjian Geng, Beibei Wang, Yan Zhao, Qing Wang, Rong Li, Zhongjun Jia, and Yunze Ruan. "Soil Organic Nitrogen Indirectly Enhances Pepper-Residue-Mediated Soil Disease Suppression through Manipulation of Soil Microbiome." Agronomy 12, no. 9 (August 31, 2022): 2077. http://dx.doi.org/10.3390/agronomy12092077.

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Banana Fusarium wilt-suppressive soils are effective against pathogen invasion, yet soil physicochemical factors responsible for conducive or suppressive behavior have not been reported. Here, we investigated the changes in banana biomass, disease incidence (DI), soil culturable microbes and physicochemical properties by incorporating pepper and banana residues into conducive and suppressive soils. Before the incorporation of any residues, the suppressive soil significantly increased banana biomass and decreased DI compared to the conducive soil. The biomass of the suppressive soil was signifi
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Simon, A., and K. Sivasithamparam. "Microbiological differences between soils suppressive and conducive of the saprophytic growth of Gaeumannomyces graminis var. tritici." Canadian Journal of Microbiology 34, no. 7 (July 1, 1988): 860–64. http://dx.doi.org/10.1139/m88-148.

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A soil acidified by ammonium sulphate following annual application of the fertilizer for 9 years was suppressive of the saprophytic growth of Gaeumannomyces graminis var. tritici in soil (pathogen suppressive). The same soil amended with lime was pathogen conducive. In natural field soil microbial respiration and the 'total' number of aerobic microorganisms were greater in the conducive than in the suppressive soil. In a soil-sandwich bioassay of the transferable suppression of saprophytic growth of the pathogen there were higher numbers of 'total' aerobic microorganisms, fluorescent pseudomon
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Wright, Peter J., Rebekah A. Frampton, Craig Anderson, and Duncan Hedderley. "Factors associated with soils suppressive to black scurf of potato caused by Rhizoctonia solani." New Zealand Plant Protection 75 (August 30, 2022): 31–49. http://dx.doi.org/10.30843/nzpp.2022.75.11761.

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Soils in which disease fails to develop despite pathogen presence are considered disease-suppressive. They offer sustainable, effective protection to plants against infection by soil-borne pathogens. Naturally disease-suppressive soils have been reported for diseases of a diverse range of agricultural crops worldwide yet the underlying mechanisms of disease suppression are still not completely understood. Two large greenhouse experiments, conducted during 2017/18 (Year 1) and 2018/19 (Year 2), determined that soils naturally suppressive to stem canker and black scurf of potato (caused by Rhizo
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Alabouvette, Claude. "Fusarium wilt suppressive soils: an example of disease-suppressive soils." Australasian Plant Pathology 28, no. 1 (1999): 57. http://dx.doi.org/10.1071/ap99008.

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Okalebo, Jane, Gary Y. Yuen, Rhae A. Drijber, Erin E. Blankenship, Cafer Eken, and John L. Lindquist. "Biological Suppression of Velvetleaf (Abutilon theophrasti) in an Eastern Nebraska Soil." Weed Science 59, no. 2 (June 2011): 155–61. http://dx.doi.org/10.1614/ws-d-10-00115.1.

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Weed-suppressive soils contain naturally occurring microorganisms that suppress a weed by inhibiting its growth, development, and reproductive potential. Increased knowledge of microbe–weed interactions in such soils could lead to the identification of management practices that create or enhance soil suppressiveness to weeds. Velvetleaf death and growth suppression was observed in a research field (fieldA) that was planted with high populations of velvetleaf, which may have developed via microbial mediated plant–soil feedback. Greenhouse studies were conducted with soil collected fromfieldA(so
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Aslam, Saman. "Non-pathogenic Fusarium oxysporum contributes in the biological suppression of pea wilt in disease suppressive soil." Pakistan Journal of Agricultural Sciences 59, no. 02 (January 1, 2022): 199–206. http://dx.doi.org/10.21162/pakjas/22.9093.

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Peas are growing all over the world as a leguminous crop due to high nutrients value. Fusarium wilt of peas is a destructive disease and causing deleterious loses in pea growing regions of the world. The fields were surveyed with disease incidence of Fusarium wilt in major pea growing areas. Fields with heavy pathogen infestation and natural disease suppressive were observed at District Sahiwal, Pakistan. The samples were collected to diagnose the disease and factors responsible in the suppression of disease. The results of soil physio-chemical properties showed no significant differences betw
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Mazzola, Mark, and Yu-Huan Gu. "Wheat Genotype-Specific Induction of Soil Microbial Communities Suppressive to Disease Incited by Rhizoctonia solani Anastomosis Group (AG)-5 and AG-8." Phytopathology® 92, no. 12 (December 2002): 1300–1307. http://dx.doi.org/10.1094/phyto.2002.92.12.1300.

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The induction of disease-suppressive soils in response to specific cropping sequences has been demonstrated for numerous plant-pathogen systems. The role of host genotype in elicitation of the essential transformations in soil microbial community structure that lead to disease suppression has not been fully recognized. Apple orchard soils were planted with three successive 28-day cycles of specific wheat cultivars in the greenhouse prior to infestation with Rhizoctonia solani anastomosis group (AG)-5 or AG-8. Suppressiveness to Rhizoctonia root rot of apple caused by the introduced isolate of
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Rozprawy doktorskie na temat "Suppressive soils"

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Ghahremani, Zahra. "Biological control approaches of Meloidogyne spp. in vegetable crops : from application of selected antagonists to suppressive soils." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/673047.

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Root-knot nematodes (RKN), Meloidogyne spp., are the most economically important genus of plant parasitic nematodes that cause considerable damage and yield losses of horticultural crops worldwide. RKN management strategies tend to reduce chemical nematicides by encouraging alternative control methods like the use of plants bearing resistance genes (R-genes) and/or by microbe-inducing plant resistance, and the antagonistic potential of soils. In the thesis, two biological control approaches of Meloidogyne spp. were evaluated: 1) the application of selected nematode antagonists, the fungus Poch
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Almario, Juliana. "Relation entre la propriété phytoprotectrice de synthèse de 2,4-diacétylphloroglucinol par les Pseudomonas fluorescents dans la rhizosphère, et la résistance des sols à la maladie de la pourriture noire des racines de tabac." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10337/document.

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Les bactéries du sol produisant des antifongiques comme le 2,4-diacétylphloroglucinol(DAPG) protègent les racines des plantes vis-à-vis des champignons phytopathogènes. Néanmoins, les conditions de fonctionnement de ces populations bactériennes dans le sol restent très mal connues. Dans certains sols, dits résistants aux maladies, ces bactéries phytoprotectrices sont présentes à des effectifs importants et leur activité est suffisante pour protéger la plante malgré la présence du pathogène. L'objectif de cette thèse a été de comprendre la relation entre la résistance des sols à la maladie de l
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Trejo, Sypolt Emily. "The Impacts of Soil Degradation on Plant Pest Suppression in Cities." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574779121415878.

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Meagher, Patricia. "The influence of peat and peat-substitute potting mix components on disease suppression, with particular reference to changes with time." Electronic version, 2008. http://epress.lib.uts.edu.au/dspace/handle/2100/553.

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Chng, Soon Fang. "Microbial factors associated with the natural suppression of take-all in wheat in New Zealand : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Lincoln University, Canterbury, New Zealand /." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/863.

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Take-all, caused by the soilborne fungus, Gaeumannomyces graminis var. tritici (Ggt), is an important root disease of wheat that can be reduced by take-all decline (TAD) in successive wheat crops, due to general and/or specific suppression. A study of 112 New Zealand wheat soils in 2003 had shown that Ggt DNA concentrations (analysed using real-time PCR) increased with successive years of wheat crops (1-3 y) and generally reflected take-all severity in subsequent crops. However, some wheat soils with high Ggt DNA concentrations had low take-all, suggesting presence of TAD. This study investiga
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Osei, Kingsley. "Nematode suppression and soil improvements potential of some leguminous cover crops in Ghana." Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494780.

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Leguminous cover crops are promising as Meloidogyne spp. suppressants but where populations of mixed species occur, their potential remains uncertain. When inoculated with a Meloidogyne arenaria-incognita-javanica complex in a glasshouse experiment, Mucuna pruriens and Crotalaria spectabilis, were poor or non-hosts, did not gall and plant height and shoot biomass were not affected. However, Dolichos lablab was highly susceptible. The root system of D. lablab stimulated population increase but the leaf eluant proved lethal. Thus, different parts of a plant contain different active ingredients o
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Nanayakkara, Chandrika Malkanthi Hewawasam. "Bacterial biocontrol and soil solarization strategies for suppression of Rhizoctonia solani on rice." Thesis, University of Aberdeen, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424985.

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Use of known antagonists and antagonistic, endophytic bacteria was investigated to screen a successful antagonist for the fungal strains <i>R. solani</i> AG 2-1, <i>R. solani</i> AG 4 and <i>R. solani</i> AGSL01.   Reputed antagonists used in the study; <i>Bacillus subtilis </i>MBI 205,  <i>B. subtilis</i> MBI 600, <i>Pseudomonas fluorescens</i> B5 and <i>P. corrugate</i> R. 117 were capable of suppressing the fungus in dual cultures. Manipulation of soil factors to reduce pre-plant density of <i>R. solani</i> sclerotia involved a laboratory experiment followed by two field experiments.  In th
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Efthymiadou, Aspasia. "Effect of environmental and soil factors on nitrogen release, weed suppression and yield of organically grown crops." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494958.

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The objective of this study was to evaluate the effect of various organic amendment on weed suppression, soil content and yield components of sweet com (Zea mays L.) grown under organic or sustainable agriculture regimes. Field experiments were conducted during 2004, 2005 and 2006 to study the effect poultry manure, cow manure and barley mulch, used at three rates (half, recommended. double). Sweet com ({Zea mays L.) was planted. Two experiments were conducted each year. Experiment I was in combination with nitrogen fertilization (nitrogen was added in each treatment according to the nitrogen
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Buck, Joshua R. "Plant-Soil Feedbacks and Subalpine Fir Facilitation in Aspen-Conifer Forests." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3397.

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This thesis includes two studies. The first study examined changes in soil characteristics as a result of prolonged conifer dominance in successional aspen-conifer forests. Changing disturbance patterns in aspen-conifer forests appear to be altering successional dynamics that favors conifer expansion in aspen forests. The primary objective of this paper was to identify how increasing conifer dominance that develops in later successional stages alters forest soil characteristics. Soil measurements were collected along a stand composition gradient: aspen dominated, aspen-conifer mix, conifer dom
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Hoagland, Lori A. "Impact of soil biology on nitrogen cycling and weed suppression under newly established organic orchard floor management systems." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Dissertations/Spring2007/l_hoagland_041807.pdf.

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Książki na temat "Suppressive soils"

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Jacobi, William R. Environmental effects of magnesium chloride-based dust suppression products on roadside soils, vegetation and stream water chemistry. Fort Collins, Colo: College of Agricultural Sciences, Dept. of Bioagricultural Sciences and Pest Management, Colorado State University, 2009.

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Stirling, Graham, Helen Hayden, Tony Pattison, and Marcelle Stirling. Soil Health, Soil Biology, Soilborne Diseases and Sustainable Agriculture. CSIRO Publishing, 2016. http://dx.doi.org/10.1071/9781486303052.

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Our capacity to maintain world food production depends heavily on the thin layer of soil covering the Earth's surface. The health of this soil determines whether crops can grow successfully, whether a farm business is profitable and whether an enterprise is sustainable in the long term. Farmers are generally aware of the physical and chemical factors that limit the productivity of their soils but often do not recognise that soil microbes and the soil fauna play a major role in achieving healthy soils and healthy crops.&#x0D; Soil Health, Soil Biology, Soilborne Diseases and Sustainable Agricul
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Tharmarajah, S. K. Soil temperature suppression on growth and yield of potato (Solanum tuberosum L.) in warm climates of Sri Lanka. 1992.

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Du Bois, W. E. B. W.E.B. Du Bois : Writings : The Suppression of the African Slave-Trade / The Souls of Black Folk / Dusk of Dawn / Essays and Articles (Library of America). Library of America, 1987.

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Du Bois, W. E. B. W.E.B. du Bois Collection : the Souls of Black Folk, Darkwater: Voices from Within the Veil, the Suppression of the African Slave Trade to the United States of America, the Conservation of Races. Wyatt North, 2021.

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Du Bois, W. E. B. W.E.B. du Bois Collection : the Souls of Black Folk, Darkwater: Voices from Within the Veil, the Suppression of the African Slave Trade to the United States of America, the Conservation of Races. Wyatt North, 2021.

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Części książek na temat "Suppressive soils"

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van Elsas, Jan Dirk, Anna Maria Kielak, and Mariana Silvia Cretoiu. "The Metagenomics of Plant Pathogen-Suppressive Soils." In Handbook of Molecular Microbial Ecology I, 275–86. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118010518.ch32.

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Kyselková, Martina, and Yvan Moënne-Loccoz. "Pseudomonas and other Microbes in Disease-Suppressive Soils." In Sustainable Agriculture Reviews, 93–140. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4113-3_5.

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Kariuki, George M., Lilian K. Muriuki, and Emma M. Kibiro. "The Impact of Suppressive Soils on Plant Pathogens and Agricultural Productivity." In Soil Biology, 3–23. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23075-7_1.

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Lal, Rattan. "Structural Attributes of Disease-Suppressive Soils and Their Impact on Human Health." In The Soil–Human Health Nexus, 303–14. First edition. | Boca Raton, FL : CRC Press, 2020. |: CRC Press, 2020. http://dx.doi.org/10.1201/9780367822736-14.

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Pérès, Guénola. "Soils Suppressing Biodiversity." In Interactions in Soil: Promoting Plant Growth, 95–118. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8890-8_5.

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Yadav, R. S., Jitendra Panwar, H. N. Meena, P. P. Thirumalaisamy, and R. L. Meena. "Developing Disease-Suppressive Soil Through Agronomic Management." In Soil Biology, 61–94. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23075-7_4.

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Stouvenakers, Gilles, Peter Dapprich, Sebastien Massart, and M. Haïssam Jijakli. "Plant Pathogens and Control Strategies in Aquaponics." In Aquaponics Food Production Systems, 353–78. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15943-6_14.

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AbstractAmong the diversity of plant diseases occurring in aquaponics, soil-borne pathogens, such as Fusarium spp., Phytophthora spp. and Pythium spp., are the most problematic due to their preference for humid/aquatic environment conditions. Phytophthora spp. and Pythium spp. which belong to the Oomycetes pseudo-fungi require special attention because of their mobile form of dispersion, the so-called zoospores that can move freely and actively in liquid water. In coupled aquaponics, curative methods are still limited because of the possible toxicity of pesticides and chemical agents for fish and beneficial bacteria (e.g. nitrifying bacteria of the biofilter). Furthermore, the development of biocontrol agents for aquaponic use is still at its beginning. Consequently, ways to control the initial infection and the progression of a disease are mainly based on preventive actions and water physical treatments. However, suppressive action (suppression) could happen in aquaponic environment considering recent papers and the suppressive activity already highlighted in hydroponics. In addition, aquaponic water contains organic matter that could promote establishment and growth of heterotrophic bacteria in the system or even improve plant growth and viability directly. With regards to organic hydroponics (i.e. use of organic fertilisation and organic plant media), these bacteria could act as antagonist agents or as plant defence elicitors to protect plants from diseases. In the future, research on the disease suppressive ability of the aquaponic biotope must be increased, as well as isolation, characterisation and formulation of microbial plant pathogen antagonists. Finally, a good knowledge in the rapid identification of pathogens, combined with control methods and diseases monitoring, as recommended in integrated plant pest management, is the key to an efficient control of plant diseases in aquaponics.
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Mahatma, M. K., and L. Mahatma. "Soil Suppressive Microorganisms and Their Impact on Fungal Wilt Pathogens." In Soil Biology, 249–74. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23075-7_12.

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Mawar, Ritu, and Satish Lodha. "Suppression of Soilborne Plant Pathogens by Cruciferous Residues." In Soil Biology, 413–33. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23075-7_20.

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Simsek-Ersahin, Yurdagul. "Suggested Mechanisms Involved in Suppression of Fusarium by Vermicompost Products." In Soil Biology, 331–51. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23075-7_15.

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Streszczenia konferencji na temat "Suppressive soils"

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Kotus, Tatijana, Jan Horak, Katarina Drgonova, and Dusan Igaz. "EFFECT OF BIOCHAR APPLICATION ON CO2 EMISSION IN RELATIONSHIP WITH SOIL PHYSICAL PROPERTIES." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/3.1/s13.28.

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Biochar application to agriculture soil has been recommended as a strategy to reduce increasing atmospheric carbon dioxide (CO2) concentrations and mitigate climate change. Significant suppression of soil CO2 emissions following biochar amendments has been demonstrated in short-term laboratory incubations by several authors, yet evidence from long-term field trials has been contradictory. This study investigates whether biochar addition to the soil could suppress soil CO2 emission under field conditions after 6�th years following amendment. CO2 emissions were not significantly suppressed with
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Susanti, Ambar, Primaadi Airlangga, and Ino Angga Putra. "Identification of Simplicillium lanosoniveum at suppressive soil potential areas in Brantas watershed – Indonesia." In THE 5th INTERNATIONAL CONFERENCE ON AGRICULTURE AND LIFE SCIENCE 2021 (ICALS 2021): “Accelerating Transformation in Industrial Agriculture Through Sciences Implementation”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0116197.

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Ivanova, A. "TECHNICAL SOLUTION FOR SUPPRESSING STUPS DURING SOIL PREPARATION FOR LANDING AFTER CUTTING." In Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_93-96.

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the article discusses the methods of uprooting (removing) stumps, depending on various situations. Particular attention is paid to the chemical destruction of stumps by introducing an arboricidal mixture. On the basis of the carried out literary and patent sources, a technical solution was proposed in the form of a device for suppressing stumps by introducing a chemical solution during reforestation work when preparing the soil for planting.
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Tereshchenko, Natalya, Tatiana Zyubanova, Elena Akimova, and Oksana Minaeva. "The assessment of soil suitability for reproduction of healthy seed potatoes based on metagenomic analysis of the soil microbial community and the level of soil suppressive activity." In MODERN SYNTHETIC METHODOLOGIES FOR CREATING DRUGS AND FUNCTIONAL MATERIALS (MOSM2020): PROCEEDINGS OF THE IV INTERNATIONAL CONFERENCE. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0069257.

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Brunner, Mark, and Qiang Bai. "Pipe-Soil Interactions for a Pipeline With Strakes on a Furrowed Seabed." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24560.

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Although significant pipe-soil interaction information is now available in the industry for shallowly-embedded, cylindrical pipelines on a flat seabed, there is little information available for subsea pipelines with vortex-induced vibration (VIV) suppression strakes on a furrowed seabed. A heavily furrowed seabed may have multiple free spans that are subjected to seabed currents and potential VIV. To suppress VIV at the free spans, strakes are often applied to the pipeline over the entire length of the furrowed area. At the tops of the furrows, the pipeline will penetrate further into a soft c
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Li, L., T. Jackson, P. Gaiser, R. Bindlish, J. Bobak, D. Kunkee, and M. Cosh. "Polarimetric Passive Microwave Signatures and RFI Suppression During the Soil Moisture Experiment/ Polarimetry Land Experiment in 2005." In 2006 IEEE International Symposium on Geoscience and Remote Sensing. IEEE, 2006. http://dx.doi.org/10.1109/igarss.2006.527.

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Killbourn, Stuart, Elizbar B. Kebadze, and James Maher. "Tethered BOP Stacks: Performance and Monitoring." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95523.

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Abstract Subsea wells present challenges for fatigue utilisation throughout the life of these high-value assets. New wells may be constructed at seabed locations where soil properties may be unfavourable or uncertain. Existing wells may require workover and eventual abandonment. This can lead to relatively small conductors supporting higher BOP masses than was envisaged when these wells were constructed. To address such stability issues during drilling and work-over operations, a BOP stack may be tethered to seabed anchors to provide lateral retention. The increased foundation stiffness raises
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Drescher, Adam, Brandon De Luna, Marjolein Pasman, Derek Haas, and Sheldon Landsberger. "Revamping of a Graduate Radiochemistry Course for Nuclear Forensics Applications." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81593.

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Laboratories in traditional radiochemistry courses typically involve basic and fundamental understanding in solvent extraction, ion exchange, precipitation, etc. procedures. With the increased focus on nuclear forensics in pre- and post-detonation scenarios different skill sets are now required for the student to learn. At the University of Texas we have developed two independent graduate courses in gamma-ray spectrometry and radiochemistry. Currently, we have amalgamated these two courses to 1. better serve our nuclear engineering graduate students, many of which are involved in nuclear foren
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Perminova, Irina. "Humics-Based Chemicals and Materials Designed for Ecoadaptive Chemistry and Technology." In 20TH CONFERENCE OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY. Non-Commercial Partnership "Center for Biogenic Resources "Humus Sapiens" (NP CBR "Humus Sapiens"), 2021. http://dx.doi.org/10.36291/ihss.2021.perminova.

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Humic substances (HS) are abundant in the environment. They penetrate through water, soil, and air. They have plentiful fossil and renewable resources including oxidized brown coal, peat, sapropel, spent sulphite liquor, composts, and other organic waste. HS govern many vitally important ecosystem processes like maintenance of soil fertility, nutrients delivery to plants, mitigation of abiotic stresses, etc. Numerous examples on their beneficial effects to plants and other living organisms are reported. Still, due to complexity of humic molecular assemblies, they have been very limitedly tappe
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Deka, Dhyanjyoti, Paul R. Hays, Kamaldev Raghavan, and Mike Campbell. "Straked Riser Design With VIVA." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20569.

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VIVA is a vortex induced vibration (VIV) analysis software that to date has not been widely used as a design tool in the offshore oil and gas industry. VIVA employs a hydrodynamic database that has been benchmarked and calibrated against test data [1]. It offers relatively few input variables reducing the risk of user induced variability of results [2]. In addition to cross flow current induced standing wave vibration, VIVA has the capability of predicting traveling waves on a subsea riser, or a combination of standing and traveling waves. Riser boundary conditions including fixed, pinned, fle
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Raporty organizacyjne na temat "Suppressive soils"

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Minz, Dror, Eric Nelson, and Yitzhak Hadar. Ecology of seed-colonizing microbial communities: influence of soil and plant factors and implications for rhizosphere microbiology. United States Department of Agriculture, July 2008. http://dx.doi.org/10.32747/2008.7587728.bard.

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Original objectives: Our initial project objectives were to 1) Determine and compare the composition of seed-colonizing microbial communities on seeds, 2) Determine the dynamics of development of microbial communities on seeds, and 3) Determine and compare the composition of seed-colonizing microbial communities with the composition of those in the soil and rhizosphere of the plants. Revisions to objectives: Our initial work on this project was hampered by the presence of native Pythium species in the soils we were using (in the US), preventing us from getting accurate assessments of spermosph
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Bradford, Joe, Itzhak Shainberg, and Lloyd Norton. Effect of Soil Properties and Water Quality on Concentrated Flow Erosion (Rills, Ephermal Gullies and Pipes). United States Department of Agriculture, November 1996. http://dx.doi.org/10.32747/1996.7613040.bard.

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Concentrated flow erosion in rills, pipes, ephermal gullies, and gullies is a major contributor of downstream sedimentation. When rill or gullies form in a landscape, a 3- to 5-fold increase in soil loss commonly occurs. The balance between the erosive power of the flow and the erosion resistance of the bed material determines the rate of concentrated flow erosion. The resistance of the bed material to detachment depends primarily on the magnitude of the interparticle forces or cohesion holding the particles and aggregates together. The effect of soil properties on bed material resistance and
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Bergstrom, Robert M., and Deborah S. Page-Dumroese. How much soil disturbance can be expected as a result of southern pine beetle suppression activities? Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2019. http://dx.doi.org/10.2737/rmrs-gtr-399.

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Bergstrom, Robert M., and Deborah S. Page-Dumroese. How much soil disturbance can be expected as a result of southern pine beetle suppression activities? Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2019. http://dx.doi.org/10.2737/rmrs-gtr-399.

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Crowley, David E., Dror Minz, and Yitzhak Hadar. Shaping Plant Beneficial Rhizosphere Communities. United States Department of Agriculture, July 2013. http://dx.doi.org/10.32747/2013.7594387.bard.

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PGPR bacteria include taxonomically diverse bacterial species that function for improving plant mineral nutrition, stress tolerance, and disease suppression. A number of PGPR are being developed and commercialized as soil and seed inoculants, but to date, their interactions with resident bacterial populations are still poorly understood, and-almost nothing is known about the effects of soil management practices on their population size and activities. To this end, the original objectives of this research project were: 1) To examine microbial community interactions with plant-growth-promoting r
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Bragdon, Sophia, Vuong Truong, and Jay Clausen. Environmentally informed buried object recognition. Engineer Research and Development Center (U.S.), November 2022. http://dx.doi.org/10.21079/11681/45902.

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The ability to detect and classify buried objects using thermal infrared imaging is affected by the environmental conditions at the time of imaging, which leads to an inconsistent probability of detection. For example, periods of dense overcast or recent precipitation events result in the suppression of the soil temperature difference between the buried object and soil, thus preventing detection. This work introduces an environmentally informed framework to reduce the false alarm rate in the classification of regions of interest (ROIs) in thermal IR images containing buried objects. Using a da
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Heinz, Kevin, Itamar Glazer, Moshe Coll, Amanda Chau, and Andrew Chow. Use of multiple biological control agents for control of western flower thrips. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7613875.bard.

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The western flower thrips (WFT), Frankliniella occidentalis (Pergande), is a serious widespread pest of vegetable and ornamental crops worldwide. Chemical control for Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on floriculture or vegetable crops can be difficult because this pest has developed resistance to many insecticides and also tends to hide within flowers, buds, and apical meristems. Predatory bugs, predatory mites, and entomopathogenic nematodes are commercially available in both the US and Israel for control of WFT. Predatory bugs, such as Orius species, can suppre
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