Atividade fisiológica da cana-de-açúcar após a aplicação de herbicidas em pré-emergência

Faria, A.T.; Saraiva, D.T.; Pereira, Ariana Mota; Rocha, Paulo Roberto Ribeiro; Silva, Antônio Alberto da; Silva, Daniel Valadão; Ferreira, Evander Alves; Benevenute, Sarah da Silva

doi:10.7824/rbh.v12i2.218

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…The equilibrium time of tebuthiuron (the concentration of the herbicide in the soil solution becomes constant) was 12 hours for all the used substrates ( Figure 1); this differs from the 7 hour equilibrium time observed by Faria et al (2013) in Brazilian Latosols. The sorption rate depends on the kinetics of the molecule in the soil solution and on the availability of sites that are susceptible to adsorbing the herbicide; soil organic matter is one of the most important herbicide sorption sites (Mirzaei et al, 2013).…”

Section: Resultsmentioning

confidence: 66%

“…At this stage, the herbicide is adsorbed by the sites located in the micropores of the soil, but the herbicide molecules that are in the soil solution are repelled by the molecules adsorbed on the surface of the aggregate, reducing the contact between herbicide and micropore spaces. Moreover, the lower herbicide concentration in the soil solution reduces the diffusion of the molecule (Liu et al, 2010;Faria et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

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Effects of Adding Organic Matter to a Red-Yellow Latosol in the Sorption and Desorption of Tebuthiuron

et al. 2018

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Tebuthiuron is one of the most widely used herbicides in the sugarcane culture and its characteristic is the long persistence in soil. When used without knowing its interactions with soil attributes, it can reduce the sustainability of cropping systems and contaminate surface and groundwaters. In this research, by using a high-performance liquid chromatography, the effects of adding organic matter in a Red-Yellow Latosol were evaluated, as for the sorption and desorption of tebuthiuron. It was concluded that there is a direct relation between the sorption of tebuthiuron and the organic matter content in Red-Yellow Latosols and there is an inverse relation for desorption. The hysteresis index was lower in samples with high organic matter content.

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Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Effects of Adding Organic Matter to a Red-Yellow Latosol in the Sorption and Desorption of Tebuthiuron

et al. 2018

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“…This research also showed that the internal concentration of carbon (Ci) tends to be influenced by factors that reduce the influx of CO2 into the inner space of the leaves due to the decrease in stomatal conductance, however, we obtained promising results with T1-cake, T2 -cake + MAP, T6-cake + MAP + gypsum and T8-cake + MAP + bagasse, causing the plants not to close their stomata, absorbing more light and energy (Ometto et al, 2003;Faria et al, 2013). With regard to sugarcane transpiration (E), our results showed a lower transpiration activity in treatments T1-cake, T4-cake + phosphate and T9-cake + gypsum + phosphate, probably due to soil water restriction and to the ineffectiveness of treatments in mitigating stress (Barboza and Teixeira Filho, 2017).…”

Section: Discussionmentioning

confidence: 99%

Filter cake increases sugarcane yield

Silva,

Almeida,

Silva

et al. 2023

Braz. J. Biol.

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Sugarcane cultivation stands out in Brazilian agribusiness, covering more than eight million hectares for the production of sugar, ethanol, and by-products. Fertilization is one of the limiting factors in sugarcane yield, for which filter cake is a viable solution to meet plant nutritional needs. This study aimed to assess the effect of enriched filter cake on gas exchange and yield in RB041443 sugarcane, cultivated in soils of the coastal tablelands of Paraíba, Brazil. The experiment was conducted in the Monte Alegre S/A sugarcane mill, in the municipality of Mamanguape, using a randomized blocks experimental design, with 12 treatments (T1- cake, T2- cake + MAP, T3- cake + gypsum, T4 - cake + phosphate, T5- cake + bagasse, T6- cake + MAP + gypsum, T7- cake + MAP + phosphate, T8- cake + MAP + bagasse, T9- cake + gypsum + phosphate, T10- cake + gypsum + bagasse, T11- cake + phosphate + bagasse, and T12- control (only MAP)), and 4 replications, totaling 48 plots. A significant effect (5% probability) was also observed for the variables number of leaves and tons of stem per hectare (TSH). T1- cake, T4- cake + phosphate, T6- cake + MAP + gypsum and T10- cake + gypsum + bagasse, had the best results for TSH, with yields greater than 140 t ha-1. Regarding stomatal conductance, the highest values were obtained in T6 and T8, which, together with T11, had the highest gs values. Concerning the internal carbon concentration, T1, T2, T6, and T8 stood out. T6 also had a significant effect on transpiration. From this study, it was concluded that the use of enriched filter cake as a base fertilizer in sugarcane culture contributes to increasing the yield of the RB041443 variety, generating positive responses for plant gas exchange, being T1 and T10 indicated to increase the production in the sugar-energy sector.

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“…Clorose, necroses foliares e redução do crescimento das plantas são sintomas de intoxicação evidenciados após a aplicação dos herbicidas (ZABLOTOWICZ; REDDY, 2007). Estudos sobre a fisiologia de espécies cultivadas associados, principalmente, às trocas gasosas e à eficiência na utilização da radiação luminosa, que são processos básicos na produção de biomassa, podem indicar os danos provocados pelos herbicidas às plantas (FARIA et al, 2013;SILVA et al, 2014). Dessa maneira, espera-se que a associação das análises fisiológicas com o crescimento das plantas de girassol possa fornecer importantes informações a respeito da sensibilidade da cultura aos herbicidas.…”

Section: Introductionunclassified

Aspectos fisiológicos e crescimento do girassol após aplicação de herbicidas em pré-emergência

Reis¹,

Silva²,

Freitas³

et al. 2014

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Resumo -Objetivou-se com este trabalho avaliar os efeitos de diferentes herbicidas aplicados em pré-emergência sobre as características relacionadas ao crescimento e à fisiologia das plantas de girassol. O experimento foi conduzido em casa de vegetação, utilizando o delineamento inteiramente casualizado com cinco repetições, sendo os tratamentos constituídos da aplicação, em pré-emergência do girassol, dos seguintes herbicidas: flumioxazin, sulfentrazone, oxyfluorfen, oxadiazon, s-metolachlor, linuron e pendimethalin, além de uma testemunha sem aplicação. As avaliações das trocas gasosas foram realizadas aos 27 dias após a aplicação (DAAs) dos herbicidas, enquanto as análises de crescimento e intoxicação visual da cultura foram mensuradas aos 50 DAAs. As características fisiológicas avaliadas não foram alteradas pela aplicação dos herbicidas. Todavia, esses produtos interferiram de forma variada nas características relacionadas ao crescimento das plantas de girassol. Enquanto o girassol se recuperou da intoxicação causada pelo oxadiazon, notou-se menor crescimento da cultura pela aplicação do flumioxazin. Conclui-se que, nas doses avaliadas nesta pesquisa, os herbicidas oxyfluorfen, s-metolachlor, linuron, oxadiazon e pendimethalin apresentam potencial para aplicação em pré-emergência da cultura do girassol. Palavras-chave -Análise de crescimento. Helianthus annuus. Tolerância a herbicidas.Abstract -Studies aim to evaluate effects of different herbicides applied pre-emergence on the characteristics related to sunflower plants growth and physiology. The experiment was conducted in a greenhouse using a completely randomized design with five replications and the treatments consisted of application, sunflower pre-emergence, following herbicides: flumioxazin, sulfentrazone, oxyfluorfen, oxadiazon, s-metolachlor, linuron and pendimethalin, and an untreated control. The gas exchange was evaluated at 27 days after herbicide application (DAAs), while the analysis of growth and visual intoxication culture were measured at 50 DAAs. Evaluated the physiological characteristics were not altered by herbicides application. However, these products interfered variously related to growth of sunflower plants characteristics. While sunflower recovered from poisoning caused by the oxadiazon was noted slower growth in culture by application of flumioxazin. We conclude that at the doses evaluated in this study, the herbicide oxyfluorfen, s-metolachlor, linuron, oxadiazon and pendimethalin have potential for application in sunflower pre-emergence.

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Atividade fisiológica da cana-de-açúcar após a aplicação de herbicidas em pré-emergência

Cited by 4 publications

References 11 publications

Effects of Adding Organic Matter to a Red-Yellow Latosol in the Sorption and Desorption of Tebuthiuron

Effects of Adding Organic Matter to a Red-Yellow Latosol in the Sorption and Desorption of Tebuthiuron

Filter cake increases sugarcane yield

Aspectos fisiológicos e crescimento do girassol após aplicação de herbicidas em pré-emergência

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