Combination of inoculation methods of Azospirilum brasilense with broadcasting of nitrogen fertilizer increases corn yield

Müller, Tânia Maria; Sandini, Itacir Elói; Rodrigues, João Domingos; Novakowiski, Jaqueline Huzar; Basi, Simone; Kaminski, Tatyanna Hyczy

doi:10.1590/0103-8478cr20131283

Cited by 35 publications

(36 citation statements)

References 15 publications

(11 reference statements)

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“…O não fornecimento de N mineral resultou em redução do desenvolvimento das culturas, bem como redução na produtividade. Vários estudos que avaliaram a resposta da inoculação em associação à adubação nitrogenada sobre o rendimento de espécies da família Poaceae, mostram grande resposta à aplicação de N (MULLER et al, 2015;DARTORA et al, 2016), independentemente da inoculação ou não das sementes (ROSÁRIO, 2013;SANGOI et al, 2015). Mesmo na agricultura menos intensiva, onde são feitos baixos e médios investimentos em adubação nitrogenada, a inoculação não apresenta bons resultados em termos de possibilitar a eliminação do aporte de N (SANGOI et al, 2015).…”

Section: Resultsunclassified

“…Para James (2000) o sucesso da associação entre bactérias diazotróficas e espécies não-leguminosas é limitado pelo número de diazotrofos presentes nas plantas e/ou rizosfera, poder de fixação dentro da planta ou em associação direta com esta, e ocorrência de taxas fixas de transferência de N às plantas. A não sobrevivência das bactérias, atrelada a fatores como o tipo de solo, genótipo da planta e variações climáticas, também afeta o sucesso da inoculação (QUADROS et al, 2014).…”

Section: Resultsunclassified

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Resposta da inoculação com Azospirillum brasilense nas culturas de trigo e de milho safrinha

Mumbach

Kotowski²,

Schneider

et al. 2017

RSA

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Resumo -O objetivo do estudo foi avaliar a eficiência agronômica da inoculação de sementes de trigo e de milho com Azospirillum brasilense, em associação à adubação nitrogenada. Sete tratamentos foram avaliados, associando a inoculação com aplicação de nitrogênio (N), sob delineamento de blocos ao acaso, com 4 repetições, totalizando 28 unidades experimentais com área individual de 27,2 m 2 . Na cultura do trigo foi avaliado o número de perfilhos por planta, número de espigas por metro quadrado, número de grãos por espiga, rendimento de massa seca e grãos, massa de mil grãos e peso hectolitro. No milho foi analisado o diâmetro de colmo, área foliar, índice de área foliar, altura de plantas, rendimento de grãos, massa de mil grãos, diâmetro e comprimento de espigas. Os resultados demonstraram que a inoculação não representou ganhos nos diferentes atributos avaliados. A associação da inoculação com adubação com N mineral aumentou a produtividade e a produção de matéria seca. A redução pela metade da adubação de N em cobertura, quando associada à inoculação, não afetou a resposta das culturas nos diferentes atributos avaliados. Conclui-se que a inoculação apresenta boa resposta nas culturas de trigo e milho quando associada à adubação nitrogenada. Palavras-chave: inoculação, produtividade, Triticum aestivum, Zea Mays.Abstract -The aim of the study was to evaluate the agronomic efficiency of wheat seed inoculation and corn with Azospirillum brasilense, in combination with nitrogen fertilization. Seven treatments were evaluated, involving inoculation with nitrogen (N), under design of a randomized block design with four replications, totaling 28 experimental units with individual area of 27,2 m². In wheat crop was rated the number of tillers per plant, number of ears per square meter, number of grains per spike, dry matter yield and grain, thousand grain weight and hectoliter weight. Maize was analyzed the stem diameter, leaf area, leaf area index, plant height, grain yield, thousand grain weight, diameter and length of spikes. The results showed that inoculation did not represent gains in different attributes evaluated. The association inoculation with fertilization with mineral N increased productivity and production of dry matter. The reduction by half of the fertilizer nitrogen in when associated with inoculation did not affect the response of crops in different attributes evaluated. It is concluded that the inoculation presents good response in wheat and corn crops when associated with nitrogen fertilization.

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Section: Resultsunclassified

Resposta da inoculação com Azospirillum brasilense nas culturas de trigo e de milho safrinha

Mumbach

Kotowski²,

Schneider

et al. 2017

RSA

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“…Despite this, an increase in yield has been observed when the plants were associated with A. brasiliense as N source for soybean crop (Hungria, 2011), and when corn plantations were associated with A. brasiliense together with manure as a nitrogen source (Muller et al, 2016 (Figure 1), the WUE values were derived from a greater increase in the liquid photosynthetic rate (A) in relation to the transpiration (E) due to the availability of water for the plants (Table 3). On the other hand, in the second and third planting seasons, where the availability of water to the plants was less favorable to their development, lower WUE values were obtained as a result of a greater decrease of A in relation to E. The variation between the values found from A and E demonstrates the plants' response to water stress caused by periods of drought during the plants' development.…”

Section: Resultsmentioning

confidence: 99%

Water use efficiency in soybean crop after inoculation with Azospirillum brasiliense in the Cerrado of Tocantins State, Brazil

Reina¹,

Pelúzio²

2017

Afr. J. Biotechnol.

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Crops in the Cerrado experience short drought stress periods that affect cultivation development, especially the water use efficiency (WUE), which can be modified by the use of Azospirillum brasiliense bacteria. In this sense, this study evaluated soybean plants' response to A. brasiliense inoculation, in relation to WUE, in the Cerrado of Tocantins State. During the growing season of 2015/2016, three experiments were conducted in Palmas municipality, with analyses in the phenological stages: R3 for the first planting and R2 for the second and third plantings. The experimental design used in each experiment was randomized block with ten treatments and four replications. The treatments were disposed in 2x5 factorial scheme, represented by two cultivars (M-9144RR and TMG 1288RR) and five different doses of A. brasiliense (0, 100, 200, 300 and 400 ml of the commercial product per hectare). They were applied through the leaf at V2 and R1 stages of the crops. WUE determination was done through photosynthesis measurement (IRGA), through which the photosynthesis and transpiration values were obtained. There was no WUE difference between the cultivars. A. brasiliense doses had effect in relation to WUE, on stressed crops. A. brasiliense inoculation did not show any significant change in WUE in crops with favorable conditions.

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“…In relation to PGPB species, the genus Azospirillum has several species that grow widely in the rhizosphere of grasses and, after being isolated and used in plant production, presented positive responses on productivity and on biological nitrogen fixation (BNF) (HUNGRIA et al, 2015;MÜLLER et al, 2016;PEREG et al, 2016). Burkholderia cepacia is another important species of bacteria in the BNF process (GÓES et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Promoting fruit seedling growth by encapsulated microorganisms

et al. 2018

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-The use of microorganisms capable of promoting plant growth has been accepted as an alternative to reducing the use of chemical fertilizers. The aim of this study was to evaluate the inoculation of plant growth promoting microorganisms in seedlings of fruit species, verifying the interaction of the inoculums with encapsulating agents such as clay and alginate. , em esquema fatorial 3 (controle, alginato de sódio e argila) x 2 (presença e ausência de inóculo microbiano), com cinco repetições (uma muda por repetição). As mudas foram mantidas em 50% de iluminação, à temperatura média de 22,5 °C, durante noventa dias, sendo avaliados a altura e o diâmetro do colo das plantas, e a massa seca da parte aérea e das raízes. Microorganismos promotores de crescimento de plantas, independentemente do encapsulamento utilizado, promovem desenvolvimento superior de mudas de caimito e de lichia. Termos para indexação: Plantas frutíferas, desenvolvimento, encapsulamento, promotores de crescimento vegetal.

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Combination of inoculation methods of Azospirilum brasilense with broadcasting of nitrogen fertilizer increases corn yield

Abstract: Nitrogen (N) is the most limiting nutrient for corn production. Thereby, the goal of the paper was to evaluate inoculation methods of Azospirillum brasilense in order to partially supply N required by the crop. The experiment was carried out in Guarapuava, PR, Brasil, in 2011/2012

Cited by 35 publications

References 15 publications

Resposta da inoculação com Azospirillum brasilense nas culturas de trigo e de milho safrinha

Resposta da inoculação com Azospirillum brasilense nas culturas de trigo e de milho safrinha

Water use efficiency in soybean crop after inoculation with Azospirillum brasiliense in the Cerrado of Tocantins State, Brazil

Promoting fruit seedling growth by encapsulated microorganisms

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