A5007716042- Soil Management and Crop Yield
- Growth and nutrition in plants
- Research in Cotton Cultivation
- Crop Yield and Soil Fertility
- Soil Carbon and Nitrogen Dynamics
- Banana Cultivation and Research
- Weed Control and Herbicide Applications
- Agronomic Practices and Intercropping Systems
- Legume Nitrogen Fixing Symbiosis
- Pesticide and Herbicide Environmental Studies
- Plant Micronutrient Interactions and Effects
- Plant nutrient uptake and metabolism
- Insect Resistance and Genetics
- Hemiptera Insect Studies
- Genetically Modified Organisms Research
- Plant Pathogens and Fungal Diseases
- Nematode management and characterization studies
- Agriculture, Plant Science, Crop Management
- Agricultural and Food Sciences
- Seed Germination and Physiology
- Rural Development and Agriculture
- Plant tissue culture and regeneration
- Irrigation Practices and Water Management
- Environmental and biological studies
- Agriculture and Rural Development Research
Brazilian Agricultural Research Corporation
2012-2023
Ministry of Agriculture, Livestock, and Food Supply
2014
Fundação de Estudo e Pesquisa em Medicina Veterinária e Zootecnia
2012
Empresa de Pesquisa Agropecuária de Minas Gerais
2004-2005
Universidade Federal de Viçosa
2001
As emergências obstétricas e assim também como o manejo psiquiátrico representam desafios significativos na área da saúde, exigindo atuação rápida eficaz equipe multiprofissional para prevenir desfechos adversos. Os médicos desempenham um papel central nesse contexto, sendo responsáveis pela avaliação inicial, diagnóstico preciso estabilização tanto mãe quanto do feto, garantindo intervenções oportunas. Esta revisão de literatura tem objetivo analisar detalhadamente dos no das obstétricas,...
A adubação é um dos fatores que mais contribui para o aumento da produtividade do milho, podendo influenciar a qualidade grãos. Este trabalho foi conduzido num Argissolo Vermelho-Amarelo distrófico, visando avaliar os efeitos com N, Mo e Zn sobre produção de grãos sob aspecto protéico teor nutrientes minerais; época adequada amostragem análise foliar N nas formas orgânico, N-NO3- total (NO3- + orgânico) relacionar composição mineral das folhas milho. Utilizou-se delineamento em blocos ao...
O objetivo deste trabalho foi avaliar a produção, persistência da matéria seca e eficiência dessecação em espécies vegetais utilizadas para cultivos de cobertura do solo, quantificar seus efeitos sobre produtividade algodoeiro plantio direto. realizado Santa Helena Goiás, GO, com 16 tratamentos: Panicum maximum, cultivares Mombaça, Tanzânia Massai; Urochloa brizantha, Piatã, Xaraés, Marandu MG4; U. decumbens; Paspalum atratum cv. Pojuca; Sorghum bicolor Eliza BRS 700; Pennisetum glaucum ADR...
ABSTRACT The objective of this study is to verify the population density and dynamics tillering in Marandu palisade grass sward subjected nitrogen (N) fertilization strategies, characterized by N supply via urea or bacterial inoculant (Azospirillum brasilense). treatments comprised four strategies: (A) Without fertilization, (B) 80 kg N/ha, (C) (A. brasilense), (D) N/ha + inoculant, distributed a randomized complete block design, with three replications. strategies were evaluated during six...
Sustainable production systems, such as the no-tillage system (NTS), have a tendency to increase organic carbon in soil. However, Brazilian cotton production, conventional tillage (CTS) is predominant, and long-term studies on crop under NTS are scarce. The present study aimed evaluate effect of soil management rotation systems fiber yield well nitrogen accumulation This was conducted savanna over 9 years consisted following four treatments with different systems: CTS succession or crops...
Abstract Three field trials were conducted with common bean. In the first trial, effects of molybdenum (Mo) rates as foliar application on yield and Mo content seeds studied. other trials, a factorial 4×2 was used to investigate four contents either or without application. first, cv. 'Pérola' 0.027 μ g seed−1 in following treatments: (a) untreated control, (b) 90 ha−1 at 21 days after emergence (DAE), (c) 180 ha− 1 DAE, (d) 360 (e) 720 (f) 17 DAE + 23 (g) 1440 (h) (i) 27 32 DAE. All plots...
Biotic and abiotic stresses can alter the hormone balance trigger activation of pathways involved in cotton stress responses, resulting abscission squares, flowers young bolls consequent reductions seed yield fiber yield. As part mechanism that primarily regulates protective response plants against stresses, ethylene is considered a key this response, increased synthesis has been observed when are subjected to stress. Thus, development strategies aimed mitigate their negative effects reduce...
BRS 369RF and 370RF were developed by the EMBRAPA as a part of efforts to create high-yielding germplasm with combinations transgenic traits. are midseason cultivars have yield stability, adaptation central Brazilian savanna, good fiber quality tolerance glyphosate herbicide.
RESUMO O cultivo de algodoeiro adensado em segunda safra, ambiente não irrigado, após soja ou feijão, tem aumentado no Cerrado do Centro-Oeste brasileiro. Com essa mudança época semeadura, as plantas algodão estão mais expostas a condições climáticas adversas. Objetivou-se avaliar o efeito cultivares, densidades e épocas semeadura sobre produção algodão. Os experimentos foram realizados três anos consecutivos. Em cada ano, os tratamentos constituídos por duas (segunda quinzena janeiro...
Abstract: The objective of this work was to evaluate the dry matter yield cover crops and their suppressive effects on weeds. experiment carried out during three years in a cerrado area state Goiás, Brazil, consisted 16 treatments with fallow cultivated single cropping intercropping. Fallow allowed high weed infestation. Cover affected composition weeds, which showed greater diversity fallow, followed by Pennisetum glaucum 'BRS 1501' Cajanus cajan crops. In average experimental years,...
ABSTRACT Most studies about soil organic carbon stock changes in the Cerrado (Brazilian Savanna) biome are either related to field data collected clayey Ferralsols or different land uses, as if they were equilibrium. This study aimed evaluate effect of tillage systems and crop sequences on yield, a sandy Ferralsol from Bahia, Brazil. The experimental design was randomized blocks, with four replicates. Soil samples after fve years cotton, soybean maize monocropping under heavy disk harrow...
ABSTRACT Cotton stalk regrowth must be controlled after harvest to ensure the phytosanitary quality and sustainability of cotton farming systems. Mechanical destruction generally does not conform no-tillage system, control by herbicides is little studied in Brazil. The objective this study was evaluate efficiency glyphosate-resistant transgenic regrowth. conducted three environments Brazilian Cerrado region, two Santa Helena de Goiás (SHGO), during 2013 2014, one Luís Eduardo Magalhães...
Este trabalho objetivou avaliar a produção, persistência e os efeitos de coberturas vegetais sobre as plantas daninhas produtividade do algodoeiro em sistema plantio direto. Os tratamentos consistiram das espécies cobertura: milheto (Pennisetum glaucum (L.) R. Brown), Brachiaria ruziziensis Germain & Evrard, sorgo forrageiro (Sorghum bicolor L. Moench), capim-pé-de-galinha (Eleusine coracana Gaerth), Crotalaria juncea L., spectabilis Roth, aveia-preta (Avena strigosa Schreb.), nabo...
Adequate potassium (K) fertilization is essential for agricultural production in soils of the Brazilian Savanna (Cerrado biome) due to high demand by crops (especially cotton), likelihood leaching losses, and dependence on fertilizer importations. Therefore, sustainability requires improvements soil efficiency management. This study evaluated influence management crop succession or rotation combinations with cotton K dynamics exchangeable reserves profile, partial balance after nine years...
RESUMO O nitrogênio e o potássio são os nutrientes mais requeridos pelo algodoeiro. algodão, cultivado em segunda safra, após a colheita da soja, tem sido uma opção dentro dos sistemas de produção do cerrado brasileiro. Este trabalho objetivou avaliar efeito das adubações nitrogenada potássica sobre estado nutricional, componentes produtividade algodoeiro, sistema adensado, semeado safra. experimento foi conduzido soja delineamento blocos ao acaso com quatro repetições. Os tratamentos foram...
ABSTRACT No-tillage cotton systems require soil coverage with cover crop residue for a longer time due to the late cycle of cotton. However, decomposition rates may vary between crops, and adjustment models describe it is critical no-tillage management. Two non-linear regression models, exponential (EM) Michaelis-Menten (MM), were adjusted dry matter crops in system, Brazil. Three field trials performed 2012 Urochloa ruziziensis (brachiaria), Pennisetum glaucum (pearl millet), Cajanus cajan...
The high price of nitrogen fertilizer is an aggravating factor for the corn production costs in out season and its use may be lead environmental damages. Diazotrophic bacteria have ability to associate with different plant species supply. Thus, objective this study was evaluate agronomic performance winter maize inoculated Azospirillum brasilense grown levels state Mato Grosso. experiment carried scaled field six treatments: 42 kg N ha-1 inoculant; 31.5 21 0 without inoculation; inoculation....
A transmissão planta-semente de Colletotrichum gossypii var. cephalosporioides, agente causal da ramulose do algodoeiro, não tem sido correlacionada com a severidade doença no campo. Entretanto, baixos níveis incidência têm, muitas vezes, resultado em altos índices infecção das sementes pelo patógeno. Esse fato induz o cancelamento campos produção algumas regiões produtoras. Este trabalho teve como objetivo avaliar efeito inóculo inicial, constituído plantas sintomas doença, relação à quando...
The production of seeds with high molybdenum (Mo) content is a practical and inexpensive way supplying its plants this micronutrient. objectives study were to estimate the relation among Mo rates sprayed over common bean cultivated in soil pH 6.1 contents Ouro Negro cultivar, evaluate performance originated from those seeds. For that, two trials carried out at Zona da Mata region, Minas Gerais state, Brazil. In first trial, 0 g ha-1, 90 250 500 750 1,000 ha-1 had their evaluated. second one,...
The effect on yield and nutrition of bean plants, Phaseolus vulgaris L., Mo contained in seeds, association with foliar-applied doses after 25 days emergence two planting periods has been evaluated. Two experiments were carried out the “meia noite” variety. Experiment I, undertaken March 24, 1999, seeds four contents (0.010 ± 0.0099; 0.138 0.017; 0.24 0.0253; 0.535 0.024 μg seed-1), combined applied leaves (0, 40 80 120 g.ha-1). In experiment II, December 1, same as I 0.000 0; 0.062 0.0107;...
Mepiquat chloride (MC) is widely used for controlling cotton plant growth. Shoot growth modifications may affect root and, consequently, interfere with the sensitivity to water deficit. This study aimed at evaluating deficit effects, in initial phenological stages of plants from seeds treated MC doses, on shoot and Two experiments were carried out a greenhouse, Santa Helena de Goiás, Goiás State, Brazil, randomized blocks design, 4x4 factorial scheme: four regulator doses (0 g, 2 4 g 8...