Associação de Rhizobium sp. a duas leguminosas na tolerância à atrazina

Camargo, Danielle; Bispo, Kelly Lopes; Sene, Luciane

doi:10.1590/s0034-737x2011000400004

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…Because atrazine has mobility in the soil, these symptoms were found in some plants for all depths evaluated. These results are different from those observed by Camargo et al (2011), who found severe intoxication symptoms, as the dose of the herbicide atrazine was increased using a red latosol with a clay texture.…”

Section: Resultscontrasting

confidence: 99%

Leaching of 2,4-d and atrazine herbicides in red-yellow latosol

et al. 2020

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The intensive use of herbicides has increased the possibility of environmental contamination and the accumulation of pesticide residues in soil and water. This work aimed to evaluate the leaching potential of 2,4-D and atrazine herbicides in red yellow Latosol with a clayey texture. The experimental design was entirely randomized, in factorial 5x3 (five doses of each herbicide for three soil depths). The doses used were 1.25, 2.50, 6.25 and 12.50 L ha-1 for the 2.4-D herbicide and 2.25, 4.50, 11.25 and 22.50 L ha-1 for the atrazine herbicide (plus absolute witnesses). The herbicides were applied in buried pvc tubes to the soil and after accumulated rainfall of 87 mm, cucumber was grown as a bio indicator plant. The plant phytotoxicity, plant height, dry mass accumulation and leaf area where the evaluations were performed at 21 days after the sowing of the cucumber were analyzed. The 2.4-D herbicide didn`t present significant difference between treatments for the plant phytotoxicity variable, however, there was difference between treatments for plant height and dry mass. For leaf area, the difference was observed only for soil depths. Atrazine herbicide also showed no difference between treatments for plant phytotoxicity, but there was a difference between treatments and soil depths for the other variables. Under the conditions evaluated, 2,4-D and atrazine herbicides can leach into clayey soil regardless of the dose used and can reach up to 30 cm depth.

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Section: Resultscontrasting

confidence: 99%

Leaching of 2,4-d and atrazine herbicides in red-yellow latosol

et al. 2020

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“…BRS Piatã e U. ruziziensis, quando semeadas na densidade de 10 kg ha -1 , aos 24 dias após a emergência da soja, reduziram a produtividade desta cultura de forma distinta, com decréscimos de 3,03 e 16,23%, respectivamente (Saraiva et al, 2013). Diversos autores relatam U. brizantha e B. pilosa como plantas daninhas de grande importância para diversas culturas (Biffe et al, 2010;Pinotti et al, 2010;Camargo et al, 2011;Pereira et al, 2012), inclusive para soja (Oliveira et al, 2013).…”

Section: Introductionunclassified

Interação entre volume de vaso e competição com plantas daninhas sobre o crescimento da soja

et al. 2015

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Interação entre volume de vaso e competição com plantas daninhas sobre o crescimento da sojaA avaliação dos efeitos da competição das plantas daninhas sobre o crescimento da soja é efetuada por meio de ensaios em ambientes protegidos. Esses ensaios, geralmente, são feitos em recipientes (vasos) em que se testam os efeitos desejados em diferentes épocas de coleta. O tamanho (volume) dos vasos a ser escolhido depende do tipo de estudo, da espécie-teste e das variáveis que serão estudadas. Por esta razão, objetivou-se com este trabalho avaliar o efeito do tamanho de vasos na habilidade competitiva da soja com as plantas daninhas Urochloa brizantha e Bidens pilosa. O experimento foi conduzido em casa de vegetação e o delineamento foi em blocos ao acaso, em esquema fatorial 3 × 5, com quatro repetições. Os fatores considerados no experimento foram três sistemas de competição (soja cultivada isoladamente, soja + U. brizantha e soja + B. pilosa) e cinco volumes dos recipientes (2, 4, 7, 10 e 16 dm 3 ). O crescimento das plantas de soja foi afetado tanto pelo volume dos vasos quanto pela competição com U. brizantha e B. pilosa, sendo que U. brizantha foi mais competitiva com a soja. Vasos com maiores volumes aumentam os efeitos da competição sobre o crescimento da soja. Palavras Interaction between pot size and competition with weeds on soybean growthThe evaluation of competition effects between soybean and weed is carried out in protected environments. These assays are usually conducted in pots to study the desired effects at different sampling/harvest times. The size of the pots varies with the type of study, plant species and the variables that will be studied. Thus, the aim of this work was to evaluate the effect of the pots size on the competitive ability of soybean with the species Urochloa brizantha and Bidens pilosa. The experiment was conducted in a protected environment and was arranged in a 3 × 5 factorial randomized block design with four replications. The factors considered in the experiment were three systems of competition (soybeans grown alone, soybeans + U. brizantha and soybean + B. pilosa) and five pot sizes (2, 4, 7, 10 and 16 dm 3 ). The soybean growth was affected by the pot sizes and the competition with U. brizantha and B. pilosa. U. brizantha was more competitive with soybean than B. pilosa. Pots with larger volumetric capacity increased the effects of the competition on the soybean growth.

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Strategies for bioremediation of pesticides: challenges and perspectives of the Brazilian scenario for global application – A review

Gonçalves

Delabona

2022

Environmental Advances

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Associação de Rhizobium sp. a duas leguminosas na tolerância à atrazina

Cited by 5 publications

References 31 publications

Leaching of 2,4-d and atrazine herbicides in red-yellow latosol

Leaching of 2,4-d and atrazine herbicides in red-yellow latosol

Interação entre volume de vaso e competição com plantas daninhas sobre o crescimento da soja

Strategies for bioremediation of pesticides: challenges and perspectives of the Brazilian scenario for global application – A review

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