{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/95254"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/95254","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Cover crops, tillage, and the suppression of soil borne diseases in soybean","abstract":"Cover crops have historically been shown to be useful in the management of pathogens of high value crops, such as fruits, vegetables, and nuts. However, the properties of these cover crops and the type of suppressive soil that they induce, can be useful in the production of agronomic crops as well. Disease suppressive soils either do not allow the pathogen to become established, or they reduce the level of disease resulting from the presence of the pathogen, in comparison to the level that would occur in a conducive soil. In this study, five cover crop treatments (cereal rye, vetch, mustard, rye+vetch, and fallow) were evaluated at the University of Illinois South Farms in both 2014 and 2015 for decreasing the incidence and severity of soybean diseases, changing soil microbial community structures, and increasing soybean yield. Two tillage treatments (chisel plow and ridge till) were also evaluated to determine whether these treatments had any effect on the microbial populations. Data of root disease severity and soybean yield were taken over the two seasons to determine the effectiveness of the different treatments. Bulk and rhizospheric soil samples were taken to compare the microbial community structures of the different treatments in relation to disease development. Poor establishment of cover crops in the field plots led to the use of greenhouse bioassays to evaluate the effects of the cover crop treatments.","abstract_html":"Cover crops have historically been shown to be useful in the management of pathogens of high value crops, such as fruits, vegetables, and nuts. However, the properties of these cover crops and the type of suppressive soil that they induce, can be useful in the production of agronomic crops as well. Disease suppressive soils either do not allow the pathogen to become established, or they reduce the level of disease resulting from the presence of the pathogen, in comparison to the level that would occur in a conducive soil. In this study, five cover crop treatments (cereal rye, vetch, mustard, rye+vetch, and fallow) were evaluated at the University of Illinois South Farms in both 2014 and 2015 for decreasing the incidence and severity of soybean diseases, changing soil microbial community structures, and increasing soybean yield. Two tillage treatments (chisel plow and ridge till) were also evaluated to determine whether these treatments had any effect on the microbial populations. Data of root disease severity and soybean yield were taken over the two seasons to determine the effectiveness of the different treatments. Bulk and rhizospheric soil samples were taken to compare the microbial community structures of the different treatments in relation to disease development. Poor establishment of cover crops in the field plots led to the use of greenhouse bioassays to evaluate the effects of the cover crop treatments.","abstract_has_math":false,"creators":["Pfaffe, Haley Catherine"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Crop Sciences","degree_department":null,"school":null,"contributors":["Eastburn, Darin M.","Davis, Adam","Domier, Leslie"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-03-01T15:45:44Z","date_published":"2017-03-01T15:45:44Z","updated_at":"2026-07-22T22:26:35Z","subjects":["Cover crops","Soybean","Diseases"],"languages":["en"],"rights":["Copyright 2016 Haley Pfaffe"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/95254","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eastburn, Darin M.","Davis, Adam","Domier, Leslie"]},{"key":"dc:creator","label":"Author","values":["Pfaffe, Haley Catherine"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2017-03-01T15:45:44Z","2016-08-04","2016-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Crop Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cover crops","Soybean","Diseases"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2016 Haley Pfaffe"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/95254"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Cover crops have historically been shown to be useful in the management of pathogens of high value crops, such as fruits, vegetables, and nuts. However, the properties of these cover crops and the type of suppressive soil that they induce, can be useful in the production of agronomic crops as well. Disease suppressive soils either do not allow the pathogen to become established, or they reduce the level of disease resulting from the presence of the pathogen, in comparison to the level that would occur in a conducive soil. In this study, five cover crop treatments (cereal rye, vetch, mustard, rye+vetch, and fallow) were evaluated at the University of Illinois South Farms in both 2014 and 2015 for decreasing the incidence and severity of soybean diseases, changing soil microbial community structures, and increasing soybean yield. Two tillage treatments (chisel plow and ridge till) were also evaluated to determine whether these treatments had any effect on the microbial populations. Data of root disease severity and soybean yield were taken over the two seasons to determine the effectiveness of the different treatments. Bulk and rhizospheric soil samples were taken to compare the microbial community structures of the different treatments in relation to disease development. Poor establishment of cover crops in the field plots led to the use of greenhouse bioassays to evaluate the effects of the cover crop treatments.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2017-02-28 without embargo terms","The student, Haley Pfaffe, accepted the attached license on 2016-08-02 at 14:46.","The student, Haley Pfaffe, submitted this Thesis for approval on 2016-08-02 at 14:51.","This Thesis was approved for publication on 2016-08-04 at 11:23.","DSpace SAF Submission Ingestion Package generated from Vireo submission #10099 on 2017-02-28 at 14:45:07","Made available in DSpace on 2017-03-01T15:45:44Z (GMT). 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Disease suppressive soils either do not allow the pathogen to become established, or they reduce the level of disease resulting from the presence of the pathogen, in comparison to the level that would occur in a conducive soil. In this study, five cover crop treatments (cereal rye, vetch, mustard, rye+vetch, and fallow) were evaluated at the University of Illinois South Farms in both 2014 and 2015 for decreasing the incidence and severity of soybean diseases, changing soil microbial community structures, and increasing soybean yield. Two tillage treatments (chisel plow and ridge till) were also evaluated to determine whether these treatments had any effect on the microbial populations. Data of root disease severity and soybean yield were taken over the two seasons to determine the effectiveness of the different treatments. Bulk and rhizospheric soil samples were taken to compare the microbial community structures of the different treatments in relation to disease development. 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