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| BATISTÃO,A.C.; YAMASHITA,O.M.; SILVA,I.V.; ARAÚJO,C.F.; LAVEZO,A.. |
| ABSTRACT: Contamination by herbicides with a prolonged effect on the soil can cause anatomical changes in sensitive plants. Thus, this study aimed at verifying the anatomical changes of tomato stem and leaves caused by different concentrations of picloram in two classes of soil from the Amazon region. The study was developed at UNEMAT, Alta Floresta - Mato Grosso state, in a CRD, in a 2 x 5 factorial arrangement, with four replications. A clayey Rhodic Hapludox (LVAw) and a sandy clay loam Typic Ustipsamments (RQo) were contaminated with 0, 1, 2, 3, and 4 L ha-1 of Tordon®, leaving the soil exposed to weathering. One-hundred and twenty days after the application of the herbicide, 10 tomato seeds were sown in samples of both soils. Thirty days after sowing,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf blade; Synthetic auxin; Oxisol; Entisol; Tomato. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100303 |
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| Alves,Micheli Lucia; Oliveira Filho,Luís Carlos Iuñes de; Nogueira,Patrícia; Ogliari,André Junior; Fiori,Márcio Antônio; Baretta,Dilmar; Baretta,Carolina Riviera Duarte Maluche. |
| ABSTRACT: In recent years, various studies and development using nanoparticles (NPs) have been carried out in the most diverse areas of knowledge. Although nanomaterials are widely employed by many sectors and some may have a fertilizing potential, little is known about their effects on the environment. This study aimed to evaluate the effect of applying, in tropical natural soil, different contents of nanoparticles of zinc oxide (NPs-ZnO) and non-nano zinc oxide (ZnO) on soil pH and on the survival and reproduction rates of earthworms ( Eisenia andrei ) and springtails ( Folsomia candida ) through standardized ecotoxicological tests. The tests used a tropical soil representative of Brazil, classified as Entisol ( Neossolo Quartzarênico órtico típico )... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nanotoxicity; Ecotoxicological tests; Soil fauna; Entisol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100402 |
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| Cruz, Rossini Sôffa da; UFT; Santos, Antonio Clementino dos; Universidade Federal do Tocantins.; Castro, José Gerley Diaz; UFT; Alexandrino, Emerson; UFT; Caraça, Diego Camargo; UFT; Diniz, Jociane Pereira; UFT. |
| Este estudo foi desenvolvido com o objetivo de avaliar o capim-elefante cv. Cameroon em função de doses de N em diferentes solos. Foi utilizado o delineamento experimental inteiramente casualizado em fatorial 5 x 2, sendo cinco doses de nitrogênio (0, 30, 60, 90, e 150 kg de N ha-1), testadas em duas classes de solo (Argissolo Vermelho eutroférrico típico e Neossolo Quartzarênico órtico típico), com quatro repetições. Os parâmetros avaliados foram: altura da planta, perfilhos, massa por perfilho, relação folha: colmo, matéria seca e pH do solo. Houve resposta positiva para ambos os solos, sendo a melhor resposta para o Argissolo. A massa dos perfilhos em gramas mostra efeito linear em função dos níveis de N e no Neossolo não houve diferença entre os... |
| Tipo: Pesquisa de campo |
Palavras-chave: Argissolo; Matéria seca; Número de perfilhos; Massa por perfilho Neossolo Quartzarênico Pennisetum purpureum Shum. Argissolo; Matéria seca; Massa por perfilho; Neossolo Quartzarênico; Pennisetum purpureum Forragicultura Oxisol; Dry matter; Mass per tiller; Entisol; Pennisetum purpureum. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6209 |
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| Souza,Eduardo Lorensi de; Antoniolli,Zaida Inês; Machado,Rafael Goulart; Eckhardt,Daniel Pazzini; Dahmer,Sabrina de Fátima Barbosa. |
| Eucalypts is one of the main species used for commercial reforestation in the state of Rio Grande do Sul, Brazil. This study aimed to evaluate the survival and early growth of eucalyptus trees in an area subject to sandy process after three years of growth. The Eucalyptus grandis seedlings were grown in a greenhouse, innoculated or not with the isolated ectomycorrhizal Pisolithus microcarpus (UFSC-Pt116), produced in peat or Entisol. After 120 days, the seedlings were transplanted to an area subject to the sandy process, in the city of São Francisco de Assis, RS. The plants have been evaluated regarding survival, height, stem diameter, nitrogen, phosphorus and potassium levels and total phosphorus, inorganic phosphorus, organic phosphorus and wood... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ectomycorrhiza; Degraded areas; Entisol; Inoculation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400004 |
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