LIXIVIAÇÃO DO HERBICIDA 2,4-D + PICLORAM EM LATOSSOLO VERMELHOAMARELO Distrófico

Franceschi, Mauricio; Felito, Ricardo Adriano; Yamashita, Oscar Mitsuo; Lorenzon, Juliano; Carvalho, Marco Antônio Camillo de

doi:10.18677/enciclopedia_biosfera_2015_188

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Up to 84 days after its use, the residual effect of picloram in agricultural areas causes senescence in successor crops (Stizolobium aterrimum and Canavalia ensiformis) (Mancuso et al, 2011). Additionally, applying 0.25 L of 2,4-D + picloram results in senescence of soybean plants used as a successor crop (Franceschi et al, 2015). All of these characteristics corroborate the senescence results obtained for Hymenaea stigonocarpa plants (Figure 2).…”

Section: Resultssupporting

confidence: 79%

Residual Doses of Herbicide Affect the Initial Development of Hymenaea stigonocarpa

et al. 2020

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The aim of this study was to assess the effect of subdoses of 2,4-D + picloram on the emergence and initial growth of Hymenaea stigonocarpa. Three experiments were carried out. In the first one, the seeds were planted in sand with residues of 2,4-D + picloram (0; 0.02; 0.10; 0.20 and 0.40 L ha -1 ). The second experiment was conducted with seedlings, using the same treatment of experiment I. In experiment III, the seeds were planted in Red Latosol contaminated with subdoses of 2,4-D + picloram (0; 0.02; 0.08; 0.24; 0.48 and 0.96 L ha -1 ). The contamination of the sand substrate with subdoses of 2,4-D + picloram inhibits the emergence and senescence of Hymenaea stigonocarpa plants. Moreover, when seeds of this species were cultivated in Red Latosol with residual doses between 0.04 and 0.96 L ha -1 , emergence and emergence speed index declined.

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Section: Resultssupporting

confidence: 79%

Residual Doses of Herbicide Affect the Initial Development of Hymenaea stigonocarpa

et al. 2020

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“…Para la prueba principal, se determinó un tiempo de dos segundos de exposición de las semillas a la mezcla del herbicida, posteriormente se lavó en agua corriente durante 60 s. La dosis del herbicida (Artys™) se estableció en 0.0625 ml por cada 100 ml de agua destilada, considerada una dosis baja para uso agrícola, pero que puede ser suficiente para causar daños al desarrollo inicial de la especie. Esta dosis se definió a partir de pruebas previas y con base en investigaciones con dosis reducidas de estos herbicidas, realizadas por los autores y publicadas previamente (Nascimento y Yamashita, 2009;Franceschi et al, 2015Franceschi et al, , 2017Batistão et al, 2018;Felito et al, 2019aFelito et al, , 2019b.…”

Section: Investigación Y Desarrollounclassified

Homeopatic for treatment of cucumber seeds contaminated with auxinic herbicide

Adriano-Felito

Mitsuo-Yamashita

Gervázio

et al. 2023

Remexca

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The aim of the present study was to investigate the use of homeopathic preparations to reduce the harmful effects caused by auxin herbicide residues on seed germination and early development of cucumber seedlings. The statistical design was completely randomized (DIC) in a 3x5+2 factorial scheme, with four replications. The treatments were the combination of three homeopathic preparations (Nux vomica, Carbo vegetabilis and Arsenicum album), in five centesimal dynamizations (6CH; 12CH; 18CH; 24CH and 30CH), plus two controls (T0= distilled water and TH = herbicide (Artys™) without homeopathic treatment). Each experimental unit consisted of transparent acrylic boxes (Gerbox™) with 25 cucumber seeds, distributed over two sheets of paper for germination and moistened with homeopathic treatments. The experimental units were kept in a BOD germination chamber (in a controlled environment at 25 ºC and 12 ho of light). On the tenth day after the installation of the experiment, the following variables were evaluated: percentage of germination, shoot length, root length, phytointoxication, percentage of dead seedlings and total dry mass. The homeopathic treatment of cucumber seeds contaminated with picloram + 2,4-D herbicide (Artys™) causes positive changes, causing interesting effects on seed germination, but it is not efficient for the total neutralization of the effect caused by the herbicide 2 picloram + 2,4-D and development of early cucumber seedlings. However, for some variables, the results are inconclusive with the preparations (Nux vomica, Carbo vegetabilis and Arsenicum album), and their ultradilutions (6CH, 12CH, 18CH, 24CH and 30CH), requiring more research to evaluate and describe the complexity of properties inherent to homeopathic treatment.

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“…Além disso, a cultura tem alternado áreas de cultivos com pastagens anuais. Sendo assim, estudos dessa natureza constituem uma importante e relevante contribuição para o sistema de manejo em que a soja é cultura subsequente (BALBINOT JÚNIOR;VEIGA, 2010;FRANCESCHI et al, 2015). Neste contexto, objetivou-se com este estudo avaliar o efeito residual dos herbicidas 2,4-D, picloram e 2,4-D + picloram no desenvolvimento inicial de plântulas de soja.…”

Section: Introductionunclassified

Efeito Residual De Herbicidas Auxínicos Em Soja

Timossi

Gazarini²,

Queiroz

et al. 2020

RBHerbicidas

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O controle das plantas daninhas em pastagens é indispensável para melhoria dos índices de produtividade da atividade agropecuária e a utilização correta e consciente dos herbicidas é muito importante para reduzir os problemas ocasionados pelo efeito residual em culturas subsequentes. Portanto, avaliou-se com este estudo o efeito residual dos herbicidas auxínicos 2,4-D, picloram e 2,4-D + picloram no desenvolvimento inicial de plântulas de soja. O trabalho foi conduzido em casa de vegetação no delineamento inteiramente casualizado, em esquema fatorial 7 x 3, com quatro repetições. O primeiro fator foi composto pelas porcentagens das doses recomendadas de herbicidas (100%, 50%, 25%, 12,50%, 6,25%, 3,12% e 0,00%) na qual a maior dose (100%) foi equivalente a 2 L ha-1. O segundo fator foi composto pelos herbicidas: 2,4-D, picloram + 2,4-D e picloram. Foram avaliados o número de plantas emergidas para cada tratamento aos 10 DAS, altura de plantas e acúmulo de massa fresca e seca aos 40 DAS. O herbicida picloram afeta negativamente as variáveis número e altura de plantas a partir da dose 3,12% e massa fresca e seca a partir da dose 6,25% e o herbicida picloram + 2,4-D afeta negativamente as variáveis número de plantas a partir da dose 3,12%, altura de plantas a partir da dose 6,25% e massa fresca e seca a partir da dose 12,5%. A soja demonstrou alta sensibilidade aos resíduos de picloram no solo. As doses 25% e 50% respectivamente, dos herbicidas picloram + 2,4-D e picloram, limitaram a emergência das plântulas e a dose 100% impediu a germinação das sementes de soja. Não foi observado efeito residual para o herbicida 2,4-D em plântulas de soja em quaisquer das doses estudadas.

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LIXIVIAÇÃO DO HERBICIDA 2,4-D + PICLORAM EM LATOSSOLO VERMELHOAMARELO Distrófico

Cited by 3 publications

References 6 publications

Residual Doses of Herbicide Affect the Initial Development of Hymenaea stigonocarpa

Residual Doses of Herbicide Affect the Initial Development of Hymenaea stigonocarpa

Homeopatic for treatment of cucumber seeds contaminated with auxinic herbicide

Efeito Residual De Herbicidas Auxínicos Em Soja

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