Ênio F. de F. e Silva

• Federal Rural University of Pernambuco

Although the NFT (nutrient film technique) solution application rate for cilantro is known for fresh water, the application rate is still debatable when using brackish water. The application rate alone influences flow velocity dynamics, which, when associated with nutrient solution salinity, can impact plant development when saline water is used. K...

The acquisition and understanding of meteorological data are crucial for management in various sectors of society. Thus, the objective was to develop a package in the R programming environment to download and process data provided by Brazilian National Institute of Meteorology (INMET) and to create a free web-based tool using Shiny (interactive web...

The lack of water in semi-arid areas presents challenges for agriculture, making it necessary to adopt strategies that optimise the use of this water resource. This study evaluated the effects of irrigation level on the growth, productivity, economic viability and water use indicators of different forage species in the semi-arid region of Brazil. T...

The application of machine learning techniques to determine bioparameters, such as the leaf area index (LAI) and chlorophyll content, has shown significant potential, particularly with the use of unmanned aerial vehicles (UAVs). This study evaluated the use of RGB images obtained from UAVs to estimate bioparameters in sesame crops, utilizing machin...

The objective of this work was to evaluate the production of green cowpea beans under conventional fertilization, different fertigation depths, and replacement of crop evapotranspiration (ETc) through continuous and pulse drip irrigation. The experimental design was a randomized complete block with 12 treatments distributed in a 5x2+2 factorial arr...

Pulsed drip irrigation helps irrigation management in the search for sustainability and water rationalization in irrigated cropping systems, becoming an effective tool in mitigating stress due to water deficit. Therefore, the present research aimed to evaluate photosynthesis, gas exchange, leaf area, and biomass production of sugarcane under irriga...

Different agronomic practices can change the morphological and productive responses of forage cactus to the cultivation environment. Therefore, studying the effects of the management adopted is essential to improve crop performance. The objective was to evaluate how the phenology, the morphophysiological indicators, and the cutting moment of cactus...

A cana-de-açúcar quando chega à indústria, passa por uma análise tecnológica de rotina para caracterizar sua qualidade. Sabendo que a salinidade pode afetar as culturas de diversas maneiras objetivou com o presente trabalho avaliar o efeito da salinidade da água de irrigação e duas frações de lixiviação nos parâmetros tecnológicos da cana-de-açúcar...

The impact of the salinity of the nutrient solution on water efficiency can be changed by the application flow. The aim of this work was to analyze the water efficiency and production components of coriander plants, cultivar Verdão, exposed to nutrient solutions (1.7, 3.0, 4.5, and 6.0 dS m⁻¹) applied with different flow rates (1.0, 2.0, 3,0, and 4...

Plant parasitic nematodes cause severe agricultural damage in Northeast Brazil. Additionally, soil salinization, especially in the semiarid region of the Northeast, is another factor that limits crop yield. The study evaluated the motility of Meloidogyne enterolobii and Pratylenchus coffeae, and the vertical migration of P. coffeae under saline con...

Water scarcity is one of the main factors that contribute to the reduction of productivity in crops, and irrigation with lower water quality is an option to minimize water stress. The objective of this work was to evaluate the growth, productivity, technological quality, and industrial yield of the plant sugarcane and the first ratoon irrigated wit...

Treated domestic sewage (TDS) can contribute to plant nutrition and improve crop production. However, there are no data for its use in coloured cotton under a deficit or excess irrigation in combination with potassium fertilization rates (KRs), mainly under semiarid tropical conditions. The research was conducted using a randomized complete block d...

Soil salinity is an environmental concern which can lead to land desertification. It is a common problem in the semiarid region of northeastern Brazil and its impacts extend from the environment to the economy. The objective of this study was to evaluate soil salinity in the dry period in an agricultural area of irrigated Maniçoba perimeter, in Jua...

O manejo adequado, como a escolha da época de plantio ou o uso da irrigação, permite o maior aproveitamento dos recursos hídricos disponíveis no ambiente. O objetivo do estudo foi estimar a produtividade potencial e real da cultura de milho no município de Chimoio, Moçambique, utilizando o modelo Zona Agroecológico da FAO. No modelo foi calculado a...

Introdução: O Semiárido brasileiro é caracterizado em muitos locais por seu balanço hídrico negativo, precipitação irregular e predominância do bioma Caatinga. As ações antrópicas têm impactado em alterações no uso do solo e ameaçado a Caatinga. Desta forma, o sensoriamento remoto é uma ferramenta chave para investigação dos impactos ambientais, pl...

O conhecimento da variabilidade temporal das chuvas, possibilita prever mudanças no sistema hidrológico, planejar e gerenciar os recursos hídricos locais. Assim, objetivou-se avaliar a variabilidade temporal da precipitação pluvial e, realizar o Balanço Hídrico Climatológico (BHC), visando a caracterização da disponibilidade hídrica face às mudança...

O conhecimento da variabilidade temporal das chuvas, possibilita prever mudanças no sistema hidrológico, planejar e gerenciar os recursos hídricos locais. Assim, objetivou-se avaliar a variabilidade temporal da precipitação pluvial e, realizar o Balanço Hídrico Climatológico (BHC), visando a caracterização da disponibilidade hídrica face às mudança...

UNIFORMIDADE DA IRRIGAÇÃO POR ASPERSÃO EM FUNÇÃO DA ALTURA DO DOSSEL DA CANA-DE-AÇÚCAR MANASSÉS MESQUITA DA SILVA1; JOSÉ AMILTON SANTOS JÚNIOR1; MARCELO SCHULER DE MELO FILHO1; ÊNIO FARIAS DE FRANÇA E SILVA1 E JOÃO BATISTA DOS SANTOS2 1Programa de Pós-Graduação em Engenharia Agrícola – PGEA. Universidade Federal Rural de Pernambuco – UFRPE. Rua Dom...

Soils are highly variable across landscapes, which can be assessed and characterized according to scale, as well as fractal and multifractal concepts of scale. Thus, the objective of this study was to analyze the multifractality of the penetration resistance (PR) of vertical profiles from different slope forms (concave and convex). The experimental...

Pulse irrigation may be more advantageous for peanut crops than continuous irrigation, when using brackish water. However, studies on pulse irrigation with brackish water considering the environmental conditions of the Northeast region of Brazil using are incipient. Therefore, the objective of this study was to evaluate the effect of using brackish...

Water scarcity and the use of brackish water are the main challenges for agricultural development. In view of this, the present study proposes to examine physiological responses of the broadleaf-cress crop in an NFT hydroponics system according to the use of brackish water and nutrient solution circulation times. The treatments were distributed in...

The Brazilian semiarid suffers from the reflex of high rainfall variability, with rainfall concentrated over time, with little spatial distribution. In this sense, presenting a highly dynamic vegetation cover, which requires constant monitoring of the changing conditions of different land uses and the utilization of water resources. The objective w...

The Brazilian semiarid region lacks constant environmental monitoring of the soil uses, to apply reversion and prevention measures over hydric and natural resources in the long and medium-term. Remote sensing enables advances and essential conditions to efficiently monitor changes caused in the vegetation dynamics of the Caatinga biome. Thus, the o...

The aim of this study was to monitor and evaluate the Caatinga vegetation cover in a municipality from the Brazilian semi-arid through of the spatial-temporal distribution of vegetation indexes by remote sensing. The study was developed using six satellite images which covers the municipality of Iguatu, Ceará. Thematic maps of the SAVI and LAI vege...

Groundwater with high salt concentrations is common in the semiarid region of Brazil. It often makes them inappropriate to conventional agricultural production of vegetables. Therefore, the objective of this work was to evaluate watercress and Chinese cabbage crops under a nutrient film technique (NFT) hydroponic system using brackish groundwater....

The present study aimed to evaluate different irrigation scheduling strategies on capsicum growth and yield inprotected environment. The experiment was carried out at the Northeastern of Brazil. Five irrigation scheduling techniques to define water depth (weighing lysimeter, Hargreaves-Samani equation, Piché evaporimeter, tensiometer and soil moist...

This study aimed to evaluate the nutritional status of the sunflower (Helianthus annus L.) irrigated with domestic effluents. The study was performed in a pilot sewage treatment plant, where the treatments were composed by the combination of two factors: types of water (A1 - effluent treated by UASB reactor; A2 – effluent treated with digester deca...

Soil is the habitat for a number of living organisms that perform essential functions within the ecosystem; their functions and interactions are modified according to different ways of land occupation. Thus, the objective of this study was to evaluate the diversity of edaphic fauna in different soil occupation systems. The study was carried out in...

The Brazilian semiarid region is characterized by extreme interannual rainfall variability, such that knowledge of the beginning and end of the rainy season contributes to avoiding uneconomic crops and consequent losses. The aim of this study was to relate the estimates of water conditions to the growth season and development of major crops for ind...

A disponibilidade de imagens de satélites em diferentes resoluções espacial, temporal, radiométrica e espectral estão sendo empregadas para monitorar grandes áreas dos diversos biomas existentes no mundo. O monitoramento por ima-gens orbitais possibilita detectar, analisar e inferir sobre alterações da superfície da Terra provocadas por processos n...

This study evaluated the contribution of potassium (K) nutrition and application of wastewater depths to the agronomic performance of colored cotton. Treatments consisted of five irrigation depths (50, 75, 100, 125 and 150% of crop evapotranspiration -ETC) and five K doses (0, 50, 100, 150 and 200% of the recommendation for the crop) and an absolut...

ABSTRACT Rationalization of brackish water management in hydroponic crops is one of the ways to expand and manage water supply in shortage areas. Thus, this work was carried out to evaluate the water and physiological relationships of Iceberg lettuce (cv. Tainá) in plants exposed to strategies of replacement of the evapotranspired volume of saline...

Resumo A disponibilidade de imagens de satélites em diferentes resoluções espacial, temporal, radiométrica e espectral estão sendo empregadas para monitorar grandes áreas dos diversos biomas existentes no mundo. O monitoramento por imagens orbitais possibilita detectar, analisar e inferir sobre alterações da superfície da Terra provocadas por proce...

This study aimed to evaluate production components of sunflower (Helianthus annuus L.) plants irrigated with domestic wastewaters treated by different processes, with two irrigation depths. The experiment was carried out in Ibimirim, state of Pernambuco, Brazil, using a randomized block design in a 4×2 factorial arrangement, with four replications....

O monitoramento ambiental por meio das técnicas de sensoriamento remoto é cada vez mais aplicável nas regiões semiáridas do Nordeste brasileiro, à exemplo da determinação do processo da evapotranspiração que permite observar sua distribuição especializada sobre os diferentes usos do solo. Neste contexto, objetivou-se identifcar o processo da evapot...

REDUÇÃO NA EVAPORAÇÃO DE ÁGUAS SUPERFICIAIS VISANDO INCREMENTO DA DISPONIBILIDADE HÍDRICA NO SEMIÁRIDO PERNAMBUCANO MAX HENRIQUE VIEIRA DOS SANTOS¹; ÊNIO FARIAS DE FRANÇA E SILVA1; TALES MILER SOARES2; GEBER BARBOSA DE ALBUQUERQUE MOURA3 E ALEXSANDRO OLIVEIRA DA SILVA4 1 Departamento de Engenharia Agrícola, Universidade Federal Rural de Pernambuco,...

PRODUÇÃO DE ALFACE UTILIZANDO ÁGUAS SALINAS EM SISTEMA HIDROPÔNICO Tales Miler Soares1; Ênio Farias de França e Silva1; Sergio Nascimento Duarte1; Ralini Ferreira Mélo1; Cristiano de Andrade Jorge1; Edna Maria Bonfim-Silva21Departamento de Engenharia Rural, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP,...

EXPERIMENTAL STRUCTURE FOR EVALUATION OF BRACKISH WATER USE IN LETTUCE HYDROPONIC PRODUCTION Tales Miler Soares; Sergio Nascimento Duarte; Ênio Farias de França e Silva; Ralini Ferreira Mélo; Cristiano de Andrade Jorge; Áureo Santana de OliveiraDepartamento de Engenharia Rural, Escola Superior de Agronomia Luiz de Queiroz, Universidade de São Paulo...

QUALIDADE DA ÁGUA SUBTERRÂNEA PARA FINS DE IRRIGAÇÃO NA MICRORREGIÃO DE TERESINA, PIAUÍ. Clarice Maria Leal1; Aderson Soares de Andrade Júnior1; Valdemício Ferreira de Sousa1; Ênio Farias de França e Silva2; Edson Alves Bastos1[1]Empresa Brasileira de Pesquisa Agropecuária do Meio Norte, Teresina, PI, clarice@cpamn.embrapa.br2Universidade Federal R...

CRESCIMENTO E PRODUÇÃO DE REPOLHO SOB DIFERENTES ADUBAÇÕES NA PRESENÇA E AUSÊNCIA DE COBERTURA MORTA EM AGRICULTURA FAMILIAR EDUARDO SILVA DOS SANTOS1; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO2; ELVIRA MARIA REGIS PEDROSA2, ÊNIO FARIAS DE FRANÇA E SILVA2 1Doutor em Engenharia Agrícola, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Mede...

RESUMO A região semiárida brasileira caracteriza-se pela extrema variabilidade interanual da precipitação pluvial, de tal forma que o conhecimento do início e do fim da estação chuvosa contribui para evitar cultivos de lavouras antieconômicos e consequentes prejuízos. Objetivou-se com este trabalho relacionar as estimativas das condições hídricas c...

RESUMO Objetivou-se com este trabalho avaliar a concentração dos nutrientes no tecido foliar das plantas de tomate cereja cv. "Rita", cultivadas em sistema hidropônico utilizando água com crescentes níveis de salinidade no preparo da solução nutritiva, submetendo as plantas a diferentes tempos de exposição à salinidade e turnos de rega. O experimen...

Fertigation is a major form of fertilizer installments; however, if applied in excess, the fertilizers can damage the crop development. The objective of this study was to evaluate the accumulation and exportation of macronutrients in a beet cultivation under 2 fertigation managements at different levels of soil salinity. The experiment was conducte...

DESEMPENHO DE UM LISÍMETRO DE PESAGEM HIDRÁULICA COM DIFERENTES SISTEMAS DE LEITURA ANTÔNIO HENRIQUE CARDOSO DO NASCIMENTO1; SUZANA MARIA GICO LIMA MONTENEGRO2; JOÃO AUDIFAX CÉSAR DE ALBUQUERQUE FILHO3; ÊNIO FARIAS DE FRANÇA E SILVA3 E NADIELAN DA SILVA LIMA3 1Unidade Acadêmica de Serra Talhada – UAST. Avenida Gregório Ferraz Nogueira, S/N Bairro:...

Underground water reserves in the semi-arid region of Brazil are stored in the crystal formations that in large part have high concentrations of salt. However, the scarcity of this resource makes the use of this water necessary for various activities, including agriculture. The aim of this study was to evaluate the use of brackish water on the elec...

A evapotranspiração da cultura representa a máxima perda de água que o sistema solo-planta sofre, em dado estádio de desenvolvimento quando não há restrição de água no solo. Com o objetivo de avaliar a evapotranspiração real da cultura da beterraba um experimento foi realizado em casa de vegetação localizada no Departamento de Engenharia Rural da U...

1 RESUMO O desempenho da fertirrigação com microtubos gotejadores está associado à qualidade da água, a seleção da fonte de nutrientes, e a vários problemas de obstrução. A presente pesquisa teve como objetivo avaliar a susceptibilidade ao entupimento de microtubos com quatro diâmetros internos: 0,6; 0,7; 0,8 e 1,0 mm, sob diferentes manejos de fer...

1 RESUMO A adição de hidrogéis no solo otimiza a disponibilidade de água, reduz as perdas por percolação, a lixiviação de nutrientes e melhora a aeração e drenagem do solo. Assim, este trabalho teve o objetivo de avaliar o efeito de cinco doses do polímero hidroabsorvente hidratassolo®, 0, 4, 8, 12 e 16 dg kg-1 de solo seco, e duas lâminas de irrig...

The excess of salts in the soil can directly affect the development and yield of the plants, therefore, studies on water relationships of crops in such conditions are necessary to prevent or solve the problem. The study was conducted in a greenhouse at Universidade Estadual Paulista, Department of Agricultural Engineering, Botucatu, Brazil. The sta...

A utilização de água de qualidade inferior para a agricultura deve ser realizada com devido cuidado evitando-se o acúmulo excessivo de sais no solo para não prejudicar o desenvolvimento das culturas. Com o objetivo de avaliar o desempenho da cultura da beterraba sob o efeito de águas de qualidade inferior, realizou-se um experimento em casa de vege...

Este trabalho teve como objetivo determinar a evapotranspiracao da cultura (ETc) e o coeficiente de cultivo (Kc) do pimentao fertirrigado, medidos ao longo do tempo (15, 30, 45, 60, 75, 90 e 105 dias apos o transplante). O experimento era conduzido em uma bateria de 40 lisimetros de drenagem, dispostos em uma matriz de 8 x 5, no periodo de outubro/...

O consumo de águas salinas pelas plantas na maioria dos casos afetam o rendimento das culturas em suas diversas fases prejudicando desenvolvimento e produção. O trabalho avaliou o consumo hídrico da rúcula (Eruca sativa) em sistema hidropônico NFT com águas salinas. Foram analisados seis níveis crescentes de salinidade da água (CEa), quais sejam: 0...

Plantas de alface cv. Elba foram cultivadas em dois sistemas hidropônicos, Floating e NFT, com o objetivo de avaliar três tipos de água: a água salobra natural (2,47 dS m-1) obtida a partir de um poço profundo; água doce (0,11 dS m-1) produzido por dessalinização por osmose inversa, e o rejeito salino (5,15 dS m-1), um efluente do processo de dessa...

Faced with the need for conservation of water resources it is necessary to better irrigation management. The objective of this research was to analyse the water requirement in Pernambuco State, Brazil, represented by the evapotranspiration reference (ET0), in diferents regimes annuals of precipitation: rainfall, regular and dry. The ET0 values were...

With the aim of determining the concentration of potassium (K+) and electrical conductivity (EC) in water drainage in the cultivation of sweet pepper (Maximos F1), and to evaluate the possible risk of contamination of groundwater was conducted a experiment on a battery of 40 drainage lysimeters, whose experimental plot consisted of three plants in...