Efeito da omissão de N, NI, Mo, Co e S sobre os teores de N e S em feijoeiro

Jasmim, Janie M; Monnerat, Pedro Henrique; Rosa, Raul Castro Carriello

doi:10.1590/s0100-06832002000400014

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…O Níquel (Ni) é outro micronutriente extremamente importante para o metabolismo do nitrogênio (Jasmim et al, 2002) e, portanto, capaz de afetar a produtividade das fabáceas. É componente da urease, enzima que atua na hidrólise da ureia (Dixon et al, 1975), e influencia a enzima hidrogenase, que aumenta a eficiência da fixação de nitrogênio em fabáceas (Klucas et al, 1983 ), aplicadas por via foliar, aos 25 dias após a semeadura, na forma de cloreto de Ni hexaidratado e molibdato de amônio, respectivamente.…”

Section: Introductionunclassified

Adubação foliar com níquel e molibdênio no feijoeiro comum cv. Ouro Vermelho

et al. 2014

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Foliar fertilization with nickel and molybdenum in common bean cv. 'Ouro Vermelho'The objective of this work was to assess the effect of foliar application with nickel (Ni) and molybdenum (Mo) on components of yield, growth and mineral composition of common bean cv. 'Ouro Vermelho'. The experiment was arranged in a randomized block design with four replications in a 5 x 2factorial scheme consisted of rates of Ni (0, 15, 30, ), and Mo (0 and 80 g ha -1) applied in the leaves 25 days after seeding. The elements were applied in the form of Ni chloride hexahydrate and ammonium molybdate. The foliar application of Ni did not change the foliar contents of N, P, K, Fe, Mo and Ni, but increased the content of N, Ni and the crude protein in the seed. The application of Mo decreased the foliar contents of P, Fe and Ni, but increased the foliar content of Mo and the content of N, Mo and crude protein in the seed. It was found that the foliar application of Ni and Mo did not affect the seed weight, the number of beans per pod, the number of pod per plant and the dry weight of the root system. The application of Mo increased in 21.62% the number of nodules.

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Section: Introductionunclassified

Adubação foliar com níquel e molibdênio no feijoeiro comum cv. Ouro Vermelho

et al. 2014

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“…É considerado essencial para as plantas e alguns animais. Está presente na enzima uréase, que atua na hidrólise da ureia e é importante para o metabolismo do nitrogênio (JASMIM et al, 2002). Apenas as amostras dos sedimentos S11 (0,303 mg/kg) e S16 (0,101 mg/kg) apresentaram concentrações de Ni (Figura 7).…”

Section: Comportamento Pluviométricounclassified

Avaliação da qualidade dos sedimentos em áreas agrícolas do município de Bom Retiro/SC

Rosini

Becegato

Dalalibera

et al. 2020

RICA

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O município de Bom Retiro/SC se caracteriza por intensa atividade agropecuária. Essas atividades podem impactar os recursos naturais, devido a utilização de agrotóxicos e fertilizantes que podem conter metais, causando diversos impactos ambientais. Com este estudo, objetivou-se caracterizar os sedimentos das áreas rurais influenciadas por atividades agropecuárias no município de Bom Retiro/SC. Para representação significativa da área, foram realizadas coletas de sedimentos em 25 pontos influenciados diretamente pelas referidas atividades. Os metais pesados cádmio (Cd), cobre (Cu), cromo (Cr), ferro (Fe), níquel (Ni), chumbo (Pb) e zinco (Zn) foram determinados por Espectrometria de Absorção Atômica de Alta Resolução com Fonte Contínua (ARFC EAA). Os sedimentos superficiais apresentaram concentrações de Cu, Cr, Fe, Ni, Pb e Zn, mas todos os pontos estavam enquadrados pela Resolução CONAMA n° 454/2012 como nível 1.

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Bioaccumulation of nickel in tomato plants: risks to human health and agro-environmental impacts

Correia

Marrocos

Olivares

et al. 2018

Environ Monit Assess

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Anthropogenic activities such as agriculture, industry, and mining have contributed significantly to the accumulation of heavy metals in the soil, which in turn cause problems to human health and to the environment. The present work aims to study the effects of nickel (Ni) on the development of tomato plants, the risks to human health associated to the consumption of contaminated tomatoes, and the consequences to the environment. The experiment was carried out in greenhouse environment for a period of 120 days, and the plants were cultivated in soils with four different concentrations of Ni: 0, 35, 70, and 105 mg kg. The concentration of nickel in each part (root, stem, leaf, and fruit) of the tomato plant was measured at four different stages of the cycle: 30, 60, 90, and 120 days, by inductively coupled plasma optical emission spectrometer (ICP-OES). At the end of the cycle, the concentration of certain macro- and micronutrients was also determined and related to the corresponding Ni concentration in the soil. The distribution of Ni in the parts of the plant was analyzed from the bioaccumulation factor temporal behavior. Nickel concentrations found in the fruit were too low to pose a risk to human health. As a result of this research, it was verified that soils with nickel concentrations close to 70 mg kg, which is the limit established by the CONAMA resolution (420/2009), may actually represent an optimum concentration value for the development of tomato plants. It also increases productivity per plant and reduces the use of resources such as water and agricultural inputs.

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Efeito da omissão de N, NI, Mo, Co e S sobre os teores de N e S em feijoeiro

Abstract: RESUMO

Cited by 6 publications

References 12 publications

Adubação foliar com níquel e molibdênio no feijoeiro comum cv. Ouro Vermelho

Adubação foliar com níquel e molibdênio no feijoeiro comum cv. Ouro Vermelho

Avaliação da qualidade dos sedimentos em áreas agrícolas do município de Bom Retiro/SC

Bioaccumulation of nickel in tomato plants: risks to human health and agro-environmental impacts

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