Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat
ABSTRACT Enrichment with beneficial microorganisms may increase the benefits of organic compost. The aim of this study was to evaluate the enrichment of a mature compost with plant growth-promoting bacteria and arbuscular mycorrhizal fungus (Rhizophagus clarus), using brachiaria (Urochloa brizantha)...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| Online Access: | http://www.scielo.br/pdf/rbeaa/v25n5/1807-1929-rbeaa-25-05-0332.pdf |
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| author | Francine C. Andrade Fernando Fernandes Adilson Oliveira Júnior Artur B. L. Rondina Mariangela Hungria Marco A. Nogueira |
| author_facet | Francine C. Andrade Fernando Fernandes Adilson Oliveira Júnior Artur B. L. Rondina Mariangela Hungria Marco A. Nogueira |
| author_sort | Francine C. Andrade |
| collection | DOAJ |
| description | ABSTRACT Enrichment with beneficial microorganisms may increase the benefits of organic compost. The aim of this study was to evaluate the enrichment of a mature compost with plant growth-promoting bacteria and arbuscular mycorrhizal fungus (Rhizophagus clarus), using brachiaria (Urochloa brizantha) as host plant, totaling seven treatments: control (compost with no bacteria, brachiaria or mycorrhizal fungus); compost + brachiaria; compost + brachiaria + mycorrhizal fungus; compost + brachiaria + mycorrhizal fungus + Azorhizobium sp.; compost + brachiaria + mycorrhizal fungus + Azoarcus sp.; compost + brachiaria + mycorrhizal fungus + Bacillus subtilis; and compost + brachiaria + mycorrhizal fungus + Azotobacter sp., in a completely randomized design with three replicates. Brachiaria shoot biomass, N and P concentrations, mycorrhizal colonization, and chemical characteristics of the compost were assessed five times over 183 days. B. subtilis and Azotobacter increased ammonium-N concentration in the compost in two and three sampling dates, respectively. In contrast, Azotobacter and Azoarcus decreased the concentrations of nitrate-N in at least one sampling. Despite high P availability in the compost (951-2927 mg kg-1), mycorrhizal colonization reached up to 53%. In a field trial with the produced composts, in a randomized block design with six repetitions, the composts with brachiaria doubled the mycorrhizal colonization of corn (Zea mays) and wheat (Triticum aestivum), independent of the growth-promoting bacteria and, depending on the associated bacteria, increased grain yields. |
| format | Article |
| id | doaj-art-16b859ca2b994443bb81a450f3d3e298 |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-16b859ca2b994443bb81a450f3d3e2982025-08-20T03:17:17ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192910.1590/1807-1929/agriambi.v25n5p332-339Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheatFrancine C. AndradeFernando FernandesAdilson Oliveira JúniorArtur B. L. RondinaMariangela HungriaMarco A. NogueiraABSTRACT Enrichment with beneficial microorganisms may increase the benefits of organic compost. The aim of this study was to evaluate the enrichment of a mature compost with plant growth-promoting bacteria and arbuscular mycorrhizal fungus (Rhizophagus clarus), using brachiaria (Urochloa brizantha) as host plant, totaling seven treatments: control (compost with no bacteria, brachiaria or mycorrhizal fungus); compost + brachiaria; compost + brachiaria + mycorrhizal fungus; compost + brachiaria + mycorrhizal fungus + Azorhizobium sp.; compost + brachiaria + mycorrhizal fungus + Azoarcus sp.; compost + brachiaria + mycorrhizal fungus + Bacillus subtilis; and compost + brachiaria + mycorrhizal fungus + Azotobacter sp., in a completely randomized design with three replicates. Brachiaria shoot biomass, N and P concentrations, mycorrhizal colonization, and chemical characteristics of the compost were assessed five times over 183 days. B. subtilis and Azotobacter increased ammonium-N concentration in the compost in two and three sampling dates, respectively. In contrast, Azotobacter and Azoarcus decreased the concentrations of nitrate-N in at least one sampling. Despite high P availability in the compost (951-2927 mg kg-1), mycorrhizal colonization reached up to 53%. In a field trial with the produced composts, in a randomized block design with six repetitions, the composts with brachiaria doubled the mycorrhizal colonization of corn (Zea mays) and wheat (Triticum aestivum), independent of the growth-promoting bacteria and, depending on the associated bacteria, increased grain yields.http://www.scielo.br/pdf/rbeaa/v25n5/1807-1929-rbeaa-25-05-0332.pdfcompostingarbuscular mycorrhizal fungusRhizophagus clarusUrochloa brizantha |
| spellingShingle | Francine C. Andrade Fernando Fernandes Adilson Oliveira Júnior Artur B. L. Rondina Mariangela Hungria Marco A. Nogueira Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat Revista Brasileira de Engenharia Agrícola e Ambiental composting arbuscular mycorrhizal fungus Rhizophagus clarus Urochloa brizantha |
| title | Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| title_full | Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| title_fullStr | Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| title_full_unstemmed | Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| title_short | Enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| title_sort | enrichment of organic compost with beneficial microorganisms and yield performance of corn and wheat |
| topic | composting arbuscular mycorrhizal fungus Rhizophagus clarus Urochloa brizantha |
| url | http://www.scielo.br/pdf/rbeaa/v25n5/1807-1929-rbeaa-25-05-0332.pdf |
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