Qualidade e produtividade da cana-de-açúcar inoculada com Gluconacetobacter diazotrophicus no e adubada com nitrogênio mineral e orgânico

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ISBN 13 :
Total Pages : 49 pages
Book Rating : 4.:/5 (23 download)

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Book Synopsis Qualidade e produtividade da cana-de-açúcar inoculada com Gluconacetobacter diazotrophicus no e adubada com nitrogênio mineral e orgânico by : José Paulo Queiroz Prado Júnior

Download or read book Qualidade e produtividade da cana-de-açúcar inoculada com Gluconacetobacter diazotrophicus no e adubada com nitrogênio mineral e orgânico written by José Paulo Queiroz Prado Júnior and published by . This book was released on 2008 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: 0 presente trabalho teve por objetivo avaliar o comportamento de duas variedades de cana-de-açúcar frente à inoculação de Gluconacetobacter diazotrophicus no sulco de plantio e a aplicação de fontes nitrogenadas. Para isso foi instalado urn experimento de campo em delineamento de blocos ao acaso com 12 tratamentos e 4 repetições, sendo os tratamentos os seguintes: duas variedades de cana-de-açúcar RB72454 e IACSP93--6006; inoculação ou não com Gluconacetobacter diazotrophicus estirpe BR 11281; ausência e presença de adubação nitrogenada como torta de filtro e uréia. As variáveis analisadas foram: análise foliar (8 meses), quantificação das bactérias fixadoras de nitrogênio (16 meses), produtividade (18 meses) e características tecnol6gicas da cana. As variedades IACSP93-6006 e RB72454 tiveram produtividade favorecida tanto pelo nitrogênio como pela inoculação. As análises tecnológicas realizadas não indicaram diferenças entre os tratamentos em nenhuma das variedades estudadas. A inoculação e as adubações nitrogenadas não interferiram no acúmulo de sacarose e nos açúcares totais produzidos pela cana. A contagem de bactérias foi estatisticamente diferente apenas na variedade RB72454 para Herbaspirillum spp. e Gluconacetobacter diazotrophicus. Entretanto, o tratamento com maior contagem de bactérias não corresponde exatamente ao tratamento com maior ganho de produtividade, indicando que apenas a contagem de bactérias não reflete o potencial de fixação da associação. 0 número de bactérias presentes não foi inibido pelo de nitrogênio mineral e nem pelo nitrogênio orgânico. Os tratamentos estudados não aumentaram o teor de nitrogênio nas folhas. Conclui-se que ambas as variedades estavam colonizadas pelas bactérias, apresentaram ganhos na produtividade quando se procedeu a inoculação no sulco de plantio ou a adição de fonte nitrogenada e as bactérias não foram inibidas pela presença de nitrogênio mineral. The objective of this research was to evaluate the Gluconacetobacter diazotrophicus inoculation efficiency in two sugarcane varieties and nitrogen sources application. A field experiment was carried out using a randomized block statistical design with 12 treatments and 4 replications. The treatments were: 2 sugarcane varieties RB72454 and IACSP93-6006; inoculation or not with Gluconacetobacter diazotrophicus lineage BR 11281 and nitrogen application with urea and filter cake. The parameters measured was: foliar analysis (8 months); yield at 18 months; technological characteristics of the sugarcane and quantification of the nitrogen fixing bacteria (16 months). The results showed that the sugarcane variety RB72454 and IACSP93-6006 yield was higher due to inoculation or nitrogen application. It was not observed differences between treatments for technological analyses. Also no differences were observed for inoculation or the nitrogen application in the sacaroses and the total sugar contents. The number of nitrogen fixing bacteria evaluation showed differences between treatments but the higher number of bacteria don't correspond exactly with the higher yield, showing that number of bacteria evaluation does not reflect the potential of the nitrogen fixation association. The number of bacteria was not inhibited by the nitrogen application. It was concluded that both varieties were colonized by fixing nitrogen bacteria. The both variety yield was increased by the nitrogen fixing bacteria inoculation and in the furrow and with the nitrogen fertilizer addition. The nitrogen fixing bacteria had not been inhibited by the nitrogen mineral presence.

Plant-Microbe Interactions in Agro-Ecological Perspectives

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Publisher : Springer
ISBN 13 : 9811065934
Total Pages : 766 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Plant-Microbe Interactions in Agro-Ecological Perspectives by : Dhananjaya Pratap Singh

Download or read book Plant-Microbe Interactions in Agro-Ecological Perspectives written by Dhananjaya Pratap Singh and published by Springer. This book was released on 2017-12-15 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book puts an updated account on functional aspects of multiphasic microbial interactions within and between plants and their ecosystem. Multipronged interaction in the soil microbial communities with the plants constitute a relay of mechanisms that make profound changes in plant and its micro-environment in the rhizopshere at physiological, biochemical and molecular levels. In agro-ecological perspectives, such interactions are known to recycle nutrients and regulate signalling molecules, phytohormones and other small molecules that help plant growth and development. Such aspects are described deeply in this book taking examples from various crop plants and microbial systems. Authors described the most advantageous prospects of plant-microbe interaction in terms of inoculation of beneficial microorganisms (microbial inoculants) with the plants in which microbes proliferate in the root rhizosphere system and benefit plants' with definite functions like fixation of nitrogen, solubilization and mobilization of P, K, Zn and production of phytohormones. The subject of this book and the content presented herein has great relevance to the agro-ecological sustainability of crop plants with the help of microbial interactions. The chapters presented focus on defining and assessing the impact of beneficial microbial interactions on different soils, crops and abiotic conditions. This volume entails about exploiting beneficial microbial interactions to help plants under abiotic conditions, microbe-mediated induced systemic tolerance, role of mycorrhizal interactions in improving plant tolerance against stresses, PGPR as nutrient mobilizers, phytostimulants, antagonists and biocontrol agents, plant interactions with Trichoderma and other bioagents for sustainable intensification in agriculture, cyanobacteria as PGPRs, plant microbiome for crop management and phytoremediation and rhizoremediation using microbial communities. The overall content entrust advanced knowledge and applicability of diversified biotechnological, techno-commercial and agro-ecological aspects of microbial interactions and inoculants as inputs, which upon inoculation with crop plants benefit them in multiple ways.

Recomendação de uma mistura de estirpes de cinco bactérias fixadoras de nitrogênio para inoculação de cana-de-açúcar

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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (71 download)

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Book Synopsis Recomendação de uma mistura de estirpes de cinco bactérias fixadoras de nitrogênio para inoculação de cana-de-açúcar by : V. M. Reis

Download or read book Recomendação de uma mistura de estirpes de cinco bactérias fixadoras de nitrogênio para inoculação de cana-de-açúcar written by V. M. Reis and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: