Luiz Antônio Zanão Júnior

ORCID: 0000-0003-4159-1380
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About
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Research Areas
  • Soil Management and Crop Yield
  • Growth and nutrition in plants
  • Silicon Effects in Agriculture
  • Aluminum toxicity and tolerance in plants and animals
  • Soil Carbon and Nitrogen Dynamics
  • Crop Yield and Soil Fertility
  • Agricultural and Food Sciences
  • Plant Micronutrient Interactions and Effects
  • Geochemistry and Elemental Analysis
  • Banana Cultivation and Research
  • Flowering Plant Growth and Cultivation
  • Soybean genetics and cultivation
  • Agronomic Practices and Intercropping Systems
  • Plant Physiology and Cultivation Studies
  • Sunflower and Safflower Cultivation
  • Soil Geostatistics and Mapping
  • Magnetic and Electromagnetic Effects
  • Legume Nitrogen Fixing Symbiosis
  • Nematode management and characterization studies
  • Soil and Land Suitability Analysis
  • Polymer-Based Agricultural Enhancements
  • Agricultural Science and Fertilization
  • Seed Germination and Physiology
  • Phosphorus and nutrient management
  • Seedling growth and survival studies

Universidade Estadual do Oeste do Paraná
2017-2024

Universidade Federal de Viçosa
2005-2024

Universidade Estadual Paulista (Unesp)
2024

Universidade Estadual de Londrina
2024

Instituto Agronômico do Paraná
2013-2023

Rural Development Institute
2022

Centro Universitário Fundação Assis Gurgacz
2018

Universidade Positivo
2017

Universidade Federal do Paraná
2008-2015

Universidade Federal de Uberlândia
2003-2010

Abstract Brown spot is one of the most devasting and prevalent disease rice its control mainly dependent on fungicide application. Therefore, this study aimed to examine effects Si Mn development brown plants grown in hydroponic culture. Rice (cv. ‘Metica‐1’) were plastic pots containing 0 or 2 m (−Si +Si treatments, respectively) with three rates (0.5, 2.5 10 μ ). Plants inoculated B. oryzae 39 days after emergence. The following components resistance evaluated: incubation period (IP),...

10.1111/j.1439-0434.2008.01447.x article EN Journal of Phytopathology 2008-09-09

Although silicon is not recognized as a nutrient, it may benefit rice plants and alleviate the Mn toxicity in some plant species. The dry matter yield (root, leaf, sheaths leaf blade) architecture (angle of insertion arc) were evaluated grown nutrient solutions with three doses, without Si addition. treatments arranged 2 x 3 factorial [with (2 mmol L-1) Si; doses (0.5; 2.5 10 µmol L-1)], randomized block design 4 replications. experimental unit was L plastic vase (Metica-1 cultivar) plants....

10.1590/s0100-06832010000500016 article EN cc-by Revista Brasileira de Ciência do Solo 2010-10-01

Leakage of transformer dielectric fluids is a concern because it may pose risk environmental contamination. In this study, the deleterious effects vegetable and mineral in water bodies were investigated using biodegradability acute toxicity tests with Danio rerio Artemia salina. Regarding biodegradability, all four tested oils (soy, canola, sunflower crambe) considered as easily biodegradable, presenting degradation rates significantly higher than Lubrax-type fluid. Acute performed two...

10.1016/j.chemosphere.2018.02.033 article EN publisher-specific-oa Chemosphere 2018-02-07

The objective of this study was to evaluate eighteen genotypes safflower and their absorption macronutrients in an experiment conducted the western region state Paraná.The under humid subtropical climate on Typic Hapludox soil with very clayey texture.The treatments were carried out randomized blocks four replications.The following traits evaluated: shoot dry mass production, seed yield, macronutrient accumulation, oil production.Data submitted analysis variance means compared by Scott-Knott...

10.21475/ajcs.17.11.10.pne490 article EN Australian Journal of Crop Science 2017-10-20

A variabilidade espacial dos índices de fertilidade do solo aumenta com a semeadura direta, constatando-se diferenças nos teores nutrientes uma camada superficial em relação à outra logo abaixo. Disto, resulta necessidade definir novos procedimentos amostragem para contemplar essas alterações. Com o objetivo avaliar pH água, matéria orgânica e os micronutrientes boro (B), cobre (Cu), ferro (Fe), manganês (Mn) zinco (Zn), desenvolveu-se este trabalho num Latossolo Vermelho distrófico, textura...

10.1590/s0103-84782007000400013 article PT cc-by-nc Ciência Rural 2007-08-01

O pequizeiro e uma especie tipica do cerrado brasileiro, pertencente a familia Caryocaraceae. E notoria importância economica cultural fruto para populacao cerrado, principalmente aqueles que trabalham com agricultura familiar. pequi apresenta altos valores nutricionais como vitaminas oleos, alem de um grande valor terapeutico. alto teor oleo o credencia materia prima producao biocombustivel. No entanto, ausencia informacoes tecnicas exploracao puramente extrativista pode dificultar em...

10.48075/actaiguaz.v2i3.8620 article PT Acta Iguazu 2013-01-01

Soil mesofauna consists of small invertebrates that live in the soil or litter and are sensitive to climatic conditions, management systems, plant cover physical chemical attributes. These organisms active cycling nutrients, since they fragment organic matter hereby accelerating microbial decomposition. The aim this study was evaluate invertebrate community no-tillage, conventional tillage, minimum tillage secondary forest regeneration determine relationship litter, attributes, seasonality....

10.1590/1678-992x-2017-0139 article EN cc-by Scientia Agricola 2018-12-15

In the no-tillage system, soils generally exhibit some degree of compaction that limits agricultural production. this scenario, use soil cover plants is one alternatives capable improving structural quality and increasing productivity crops, such as soybeans. context, objective study was to evaluate effect plant species management systems on improvement physical characteristics a Oxisol its effects production content soybean oil. The treatments consisted control, system with gypsum,...

10.33448/rsd-v10i12.20514 article EN Research Society and Development 2021-09-24

A eficácia dos planos de amostragem do solo pode ser aumentada se for conhecida e considerada a variabilidade espacial seus atributos, e, para isso, devem estudados os fatores que determinam. O objetivo deste trabalho foi avaliar teores macronutrientes P, K, Ca, Mg S em dois Latossolos, um muito argiloso outro textura média, cultivados com manejo semelhante, há oito anos sob sistema plantio direto. coleta das amostras realizada intervalos regulares 50 m, totalizando 121 pontos, duas camadas...

10.1590/s0100-06832010000200012 article PT cc-by Revista Brasileira de Ciência do Solo 2010-04-01

O objetivo deste trabalho foi avaliar fontes e métodos de aplicação silício para aumentar sua absorção a resistência plantas arroz (Oryza sativa), cultivar Metica-1, à mancha-parda (Bipolaris oryzae). Foram conduzidos dois experimentos em casa vegetação, com solo Latossolo Vermelho. delineamento experimental o completamente casualizado, oito repetições. As foram wollastonita (silicato cálcio), aplicada via solo, silicato potássio ácido monossilícico, aplicados foliar. A resultou aumento do...

10.1590/s0100-204x2009000200013 article PT cc-by Pesquisa Agropecuária Brasileira 2009-02-01

O estudo da variabilidade espacial dos atributos químicos no solo é uma etapa importante na agricultura de precisão. Objetivou-se com este trabalho avaliar a em duas profundidades (0-10 e 10-20 cm) do pH água, saturação por bases teores matéria orgânica micronutrientes (B, Cu, Fe, Mn Zn) um Latossolo Vermelho distrófico, textura média, cultivado há oito anos sistema plantio direto, Uberlândia - MG. A coleta das amostras foi realizada intervalos regulares 50 m, malha regular 121 pontos. Os...

10.1590/s0034-737x2010000300021 article PT cc-by Revista CERES 2010-06-01

A alface (Lactuca sativa L.) é uma hortaliça bastante exigente em fósforo, sendo pouco tolerante à acidez do solo. O objetivo deste trabalho foi avaliar a resposta da cultura diferentes fontes de fertilizantes fosfatados solúveis e reativos lenta solubilidade, na presença calagem, visando aumento produtividade. Utilizou-se o delineamento blocos casualizados, com seis tratamentos (superfosfato simples, termofosfato magnesiano, superfosfato triplo, Fosmag, fosfato reativo Arad testemunha...

10.1590/s0102-05362004000300004 article PT Horticultura Brasileira 2004-09-01

O objetivo do trabalho foi avaliar o efeito parcelamento de diferentes doses silício na produção girassol ornamental, produzido em vaso, casa vegetação. A fonte utilizada silicato potássio aplicado no substrato. Os tratamentos foram dispostos um fatorial 5x2, cinco Si (0, 150, 300, 450 e 600mg vaso-1) duas formas aplicação (total ou parcelada), delineamento inteiramente casualizado, com quatro repetições. Cada unidade experimental constituída por vaso n° 12, uma planta híbrido Sunflower F1...

10.1590/s0103-84782009005000194 article PT cc-by-nc Ciência Rural 2009-10-01

The potted chrysanthemum is one of the main flowers produced in protected cultivation. Silicon has promoted improvements both quantitative and qualitative aspects when supplied to some ornamental species these conditions. We evaluated response cultivars grown pots application silicon. experiment was conducted a greenhouse Universidade Federal de Viçosa, Minas Gerais state, Brazil. Treatments were arranged 3x2 factorial scheme (three chrysanthemum: Coral Charm, White Reagan Indianapolis two...

10.1590/s0102-05362012000300008 article EN Horticultura Brasileira 2012-09-01

Poor soil management and intensive use of pesticides causes serious damage to water quality in Brazil.To confirm this, two studies were conducted an area with farming Southern Brazil objectives evaluate the level river adjacent Original Research Article-1 for Metalaxyl, 5.74 μg L -1for Chlorothalonil runoff samples, suggesting a high probability contamination downstream environments during intense rainfall events after recent application.The results highlight importance good practices...

10.9734/ijpss/2015/14419 article EN International Journal of Plant & Soil Science 2015-01-03

Due to the low natural availability of phosphorus (P) in tropical soils and plant’s need for P, use fertilizers increased efficiency is an important tool achieving high yields. The aims this study were evaluate plant growth, foliar P content yield soybean corn crops different seasons places response rates sources. sources monoammonium phosphate (MAP) Policote coated MAP (Policote+MAP). Field experiments carried out comparing performance compared (MAP+Policote), additive based on water...

10.21475/ajcs.20.14.01.p1862 article EN Australian Journal of Crop Science 2020-01-20

In this work, deleterious effects in soils due to the presence of dielectric fluids were investigated. For purpose, vegetable (Envirotemp® FR3) and mineral (Lubrax AV 66 IN) oils used for simulating a set contaminated different oil contents (0.5, 1.0, 2.0, 2.5, 5.0, 7.5 10%) which three 120-days soybean crop periods (SCP) carried out using species Glycine max (L.) Merr. Both soil plant samples analysed on following changes chemical attributes, content greases (COG) phytotechnical...

10.1016/j.chemosphere.2018.01.049 article EN publisher-specific-oa Chemosphere 2018-02-09

Este trabalho teve como objetivo identificar a entomofauna visitante das flores de Capsicum annuum L. var. Cascadura Ikeda, e avaliar os efeitos da polinização entomófila, mais especificamente Apis mellifera L., nesta cultura. O estudo realizou-se em Taubaté (SP), 21º01'S; 45º29'W; altitude 570 m entre abril setembro 2002. Na ocasião, foram observadas 36 plantas pimentão, 6h às 17h (10 minutos/hora), durante quatro dias no período floração máximo cultura, sendo coletados insetos visitantes...

10.1590/s0006-87052008000200001 article PT Bragantia 2008-01-01

This study investigated the role of silicon (Si) and manganese (Mn) rates on activity peroxidases (POX), polyphenoloxidases (PPO) phenylalanine ammonia-lyases (PAL) rice plants non-inoculated inoculated with Bipolaris orzyae. Rice (cultivar Metica 1) were grown in nutrient solution 0 (-Si) or 2 mmol Si L-1 (+Si) 0.5, 2.5 10 μmol Mn L-1. Plants B. oryzae leaf samples collected at 6, 12, 18, 24, 36 48 h after inoculation (hai). Leaf also from these same time-points. POX increased for -Si both...

10.1590/s1982-56762012000500006 article EN Tropical Plant Pathology 2012-10-01

A utilização de Si no cultivo algumas plantas ornamentais cultivadas em vasos casa vegetação tem proporcionado aumento na produção e qualidade do produto final. Objetivou-se com este estudo avaliar a absorção nutrientes dois cultivares roseira cultivados influenciados pela aplicação doses substrato. Os tratamentos foram gerados pelo fatorial 2 x 5, composto por (Yellow Terrazza® Red White Terrazza®) cinco (0; 0,25; 0,50; 0,75; 1,00 g kg-1), dispostos delineamento blocos casualizados, quatro...

10.1590/s0100-06832013000600017 article PT cc-by Revista Brasileira de Ciência do Solo 2013-12-01
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