6 documents found, page 1 of 1

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Alkaline pretreatment and enzymatic hydrolysis of corn stover for bioethanol pr...

Bohn, Letícia Renata; Dresch, Aline Perin; Cavali, Matheus; Vargas, Ana Carolina Giacomelli; Führ, Jaíne Flach; Tironi, Siumar Pedro; Fogolari, Odinei

The demand for ethanol in Brazil is growing. However, although the country is one of the largest producers of this fuel, it is still necessary to diversify the production matrix. In that regard, studies with different raw materials are needed, mainly the use of low cost and high available wastes such as lignocellulosic residues from agriculture. Therefore, this study aimed to analyze the bioethanol production f...

Date: 2021   |   Origin: Oasisbr

Época de emergência de azevém e nabo sobre a habilidade competitiva da cultura ...

Faria, Autieres Teixeira; Tironi, Siumar Pedro; Galon, Leandro; Silva, Alexandre Ferreira da; Fialho, Cintia Maria Teixeira

Objetivou-se com o trabalho avaliar os efeitos de épocas de emergência das plantas daninhas, azevém e nabo, sobre a cultura da cevada. O experimento foi conduzido em delineamento de blocos casualizados, arranjado em esquema fatorial 2x5, com três repetições. No fator A, foram alocadas as plantas competidoras (azevém e nabo) e no B as épocas de emergência (14 e 07 dias antes, no mesmo dia, 07 e 14 dias depois da...

Date: 2018   |   Origin: Oasisbr

Meia-vida do diuron em solos com diferentes atributos físicos e químicos

Rocha, Paulo Roberto Ribeiro; Faria, Autieres Teixeira; Silva, Gustavo Soares da; Queiroz, Maria Eliana Lopes Ribeiro de

A distribuição e a dissipação dos herbicidas nos solos são processos dinâmicos e únicos para cada relação solo-herbicida. Neste trabalho, a meia-vida do diuron foi determinada em cinco solos (Latossolo Vermelho Amarelo, Latossolo Vermelho e Latossolo Amarelo), com diferentes valores de pH. As concentrações do diuron foram determinadas em amostras dos referidos solos coletadas em oito épocas (1, 8, 15, 22, 36, 6...

Date: 2018   |   Origin: Oasisbr

Impacto de herbicidas na atividade microbiana em solo cultivado com cana-de-açúcar

Tironi, Siumar Pedro

Conselho Nacional de Desenvolvimento Científico e Tecnológico; This work aimed at evaluating the impact of herbicides on the microbiological activity of soil cultivated with sugarcane. A first trial was installed in the laboratory with two bacterial isolates from the rhizosphere soil of sugarcane, Sac 4 and Sac 13, presenting, respectively, high and low potential for phosphate (P) solubilization. The growth and...

Date: 2015   |   Origin: Oasisbr

Interferência e controle químico de populações de Brachiaria brizantha em cana-...

Tironi, Siumar Pedro

Conselho Nacional de Desenvolvimento Científico e Tecnológico; Aiming to reduce production costs of sugarcane and the environmental impact caused by incorrect use of herbicides in this crop, this study took place, composed of four experiments. In the first experiment, sugarcane cultivars were evaluated in coexistence with different populations of Brachiaria brizantha. The objective was to establish the economic...

Date: 2015   |   Origin: Oasisbr

Seletivicty of eucalyptus genotypes to herbicides rates

Agostinetto, Dirceu; Tarouco, Camila Peligrinotti; Markus, Catarine; de Oliveira, Ezequiel; Silva, José Matheus Betemps Vaz da; Tironi, Siumar Pedro

The aim of this work was to quantify the herbicide selectivity applied at post-emergence of eucalyptus in different rates. The experiment was conducted in greenhouse conditions in the period from January to March 2007 at the Faculdade de Agronomia Eliseu Maciel in Universidade Federal de Pelotas – Capão do Leão-RS. Experimental design was completely randomized, with four replications. Treatments were in a facto...

Date: 2010   |   Origin: Oasisbr

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