Ricardo Barros Silva

ORCID: 0000-0002-0127-8325
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About
Contact & Profiles
Research Areas
  • Growth and nutrition in plants
  • Soil Management and Crop Yield
  • Cassava research and cyanide
  • Agricultural and Food Sciences
  • Banana Cultivation and Research
  • Seed Germination and Physiology
  • Irrigation Practices and Water Management
  • Plant Physiology and Cultivation Studies
  • Plant Micronutrient Interactions and Effects
  • Insect Resistance and Genetics
  • Soybean genetics and cultivation
  • Weed Control and Herbicide Applications
  • Agronomic Practices and Intercropping Systems
  • Pineapple and bromelain studies
  • Crop Yield and Soil Fertility
  • Soil Carbon and Nitrogen Dynamics
  • Peanut Plant Research Studies
  • Insect Pest Control Strategies
  • Plant Stress Responses and Tolerance
  • Leaf Properties and Growth Measurement
  • Coconut Research and Applications
  • Botanical Research and Applications
  • Phosphorus and nutrient management
  • Plant and animal studies
  • Magnetic and Electromagnetic Effects

Universidade Federal de Alagoas
2019-2025

Universidade Federal Rural de Pernambuco
2014

Brazilian Agricultural Research Corporation
2012

Universidade Federal de São Carlos
2010

Universidade Estadual Paulista (Unesp)
2008

Land use significantly impacts the physical-chemical properties of soil, particularly in tropical regions where maximum phosphorus adsorption capacity (MPAC) plays a crucial role agricultural sustainability. This study evaluates influence land uses (cropland, grassland, and forest) on MPAC dryland soils Sergipe, Alagoas, Bahia (SEALBA) frontier Northeast Brazil. Soil samples from nine sites were analyzed for their characteristics (potential hydrogen (pH), available (P), remaining P, soil...

10.1080/00103624.2025.2452995 article EN Communications in Soil Science and Plant Analysis 2025-01-15

ABSTRACT The aim of this study was to evaluate the influence different planting times and meteorological variables on productive performance industrial cassava in Agreste region Alagoas state, Brazil. treatments were five dates, 25 days apart: D1 - April 10, D2 May 5, D3 30, D4 June 24 D5 July 19. experiment conducted from 2021 September 2023 (two cultivation cycles), using randomized blocks, with four replicates. analyzed agrometeorological data, crop growth yield. In Alagoas, average daily...

10.1590/1807-1929/agriambi.v29n6e285686 article EN Revista Brasileira de Engenharia Agrícola e Ambiental 2025-02-03

The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a key pest of maize (Zea mays L.) crop, and invariably demand control measures.However, the time insecticide application has not been properly defined, leading to an inefficiency in and, therefore, without getting maximum from treatment procedure.Many times reaching population density that would measure very early season.To detect such populations decide about application, experiment was conducted installing...

10.18512/1980-6477/rbms.v9n2p107-122 article EN cc-by Revista Brasileira de Milho e Sorgo 2010-08-30

Water availability is a limiting factor for plant production, especially in Brazilian semi-arid regions. The main aim of the study was to investigate physiological effects drought during fruiting stage watermelon cultivation. A completely randomized block design with four replications and six treatments varied by number lateral drip tapes (1 or 2) duration stress (0, 4, 8 days) used. following parameters were evaluated: relative chlorophyll content, leaf water electrolyte leakage, CO2...

10.3390/agronomy14050950 article EN cc-by Agronomy 2024-05-01

The objective of this research was to evaluate the biochemical and physiological quality peanut cultivar seeds under periods imbibition drying. A completely randomized statistical design adopted, in factorial scheme, with four replications. three cultivars were: BR1, BRS 151-L7, IAC 505. drying 0, 12, 24, 36 48 hours. were aid germitest paper distilled water, then dried on a metal screen plastic box silica, according studied. Physiological variables evaluated (percentage germination, normal...

10.1590/1678-4499.20230232 article EN Bragantia 2024-01-01

This study aimed to evaluate the performance of different thermal scarification methods overcome Piptadenia moniliformis seeds dormancy. The treatments used were: control (no treatment - T1); seed immersion in water at 80 and 100 °C for 10 (T2 T6, respectively), 30 (T3 T7, respectively) 60 (T4 T8, seconds; until cooling room temperature (28 °C) (T5), (T9). were placed germination boxes with transparent lid, containing blotting paper substrate, which was moistened Nystatin solution. Later,...

10.5039/agraria.v9i1a2488 article EN cc-by-nc Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences 2014-03-27

The knowledge of the flow parasitoids in cultivated areas is a practice that should be adopted for choosing best method regulation pest populations. objective this study was to determine occurrence associated with lepidopterous larvae Spodoptera frugiperda (J. E. Smith) (Noctuidae) and Dichomeris famulata Meyrick (Gelechiidae) maize under organic conventional production system. experiment conducted at National Research Center Maize Sorghum (CNPMS) Sete Lagoas, Minas Gerais State, Brazil....

10.18512/1980-6477/rbms.v11n1p115-119 article EN cc-by Revista Brasileira de Milho e Sorgo 2012-04-30

Degradation of Caatinga biome has created desertification processes in several areas, inducing big microclimate and surface changes. Therefore, it is fundamental develop research methods capable identifying areas under degradation process. Satellite images different spatial, temporal, radiometric spectral resolutions are being used to monitor from biomes worldwide. The objective this study was evaluate quantify the degree preservation biome, using geoprocessing remote sensing products, data...

10.26848/rbgf.v13.5.p2293-2303 article ES Revista Brasileira de Geografia Física 2020-07-29

Cover crops (CCs) have demonstrated their significance in enhancing the agronomic and economic performance of corn succession. In this paper, we assess responses short-term returns adopting cover for cultivation sandy soils semiarid region northeast Brazil, with aim addressing additional challenges CCs adoption regions. The field study was conducted Arapiraca, Alagoas, under no-tillage conditions two cropping seasons. A randomized complete block design employed, comprising six (sunn hemp,...

10.3390/su152015091 article EN Sustainability 2023-10-20

Abiotic stresses, such as water limitation, are significant limiting factors in basil production. One alternative to mitigate the harmful effects of this stress on plants is using plant growth regulators. This study’s objective evaluate different doses regulators under deficiency conditions. A randomized block experimental design a factorial scheme with two was used: first factor referred regimes 50% and 100% stomatal conductance, second regulator mixture: 0 mL L−1 (control), 3 L−1, 6 9 12...

10.3390/horticulturae10070729 article EN cc-by Horticulturae 2024-07-11

Cover crops have gained attention due to their potential benefits for the soil and physiological performance of subsequent crops. This study aimed evaluate productive aspects maize grown in succession cover northeastern Brazil. A randomized complete block design with four repetitions was employed, which treatments consisted following crops: sunn hemp, spectabilis, pigeon pea, Brachiaria sp., jack bean, millet, fallow. Physiological production components were evaluated at tasseling (VT)...

10.3390/stresses4040045 article EN cc-by Stresses 2024-10-27

- O Instituto de Conservação Internacional do Brasil estima uma redução da Caatinga 90% no estado Alagoas. Logo, o reflorestamento surge como medida para recuperação destas áreas. No entanto, sabe-se que a época coleta das sementes plantas nativas é muito variável. Dessa forma, armazenamento um processo imprescindível em programas reflorestamento. objetivo deste estudo foi verificar interferência período seis meses diferentes embalagens (plástico grosso e papel kraft) dois locais...

10.48180/ambientale.v11i1.115 article PT Revista Ambientale 2019-07-17

O cultivo do milho doce apresenta alta demanda de nitrogênio, e por ser uma cultura com grande potencial expansão, são necessários estudos que demonstrem manejos eficientes da adubação nitrogenada para aumento produtividade, como o uso bactérias promotoras crescimento plantas capazes fixar nitrogênio atmosférico, desonerando processo produtivo. Nesse trabalho objetivou-se avaliar a influência em (BPCP) nativas Sertão Alagoas aliadas sob componentes produção doce. delineamento estatístico...

10.25066/agrotec.v41i3-4.54809 article PT Agropecuária Técnica 2020-12-31

The aim of this research was to evaluate the physiological and productive aspects irrigated cassava crop. statistical design used randomised blocks, with six treatments four replications. were irrigation levels, based on crop evapotranspiration – ETC (L0 = 0% [rainfed], L1 40%, L2 80%, L3 120%, L4 160% L5 200% ETC) analysed variables were: gas exchange, quantum efficiency photosystem II (PSII) soil plant analysis development (SPAD) index. growth productivity also evaluated through leaf area...

10.1590/1678-4499.20200501 article EN Bragantia 2021-01-01

RESUMO -Doru luteipes (Scudder) (Dermaptera: Forficulidae) é um dos principais agentes de controle biológico natural Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), no Brasil, alimentando-se ovos e lagartas pequenas em plantas milho (Zea mays L.).Esse predador compartilha o mesmo habitat da praga, colocando seus interior do cartucho planta.Dessa forma, aplicações inseticidas para desse inseto-praga podem reduzir a população predador.O objetivo deste trabalho foi avaliar,...

10.18512/1980-6477/rbms.v9n3p223-235 article PT cc-by Revista Brasileira de Milho e Sorgo 2010-12-30

Pesquisas voltadas a seleção de cultivares feijão e adubação foliar molíbdica no estado Alagoas ainda são escassas. Neste experimento avaliou-se o desempenho comum sob ausência presença Agreste alagoano. O foi conduzido entre maio julho 2016 município Arapiraca – AL. delineamento utilizado em blocos casualizados, com quatro repetições, um arranjo 5 x 2, referente as (BRS Ametista, BRS Cometa, Estilo, Notável Pérola) da molíbdica. potencial produtivo das interferência rica molibdênio...

10.25066/agrotec.v40i1-2.42376 article PT Agropecuária Técnica 2019-11-20

Esse estudo objetivou analisar a maturidade fisiológica de sementes Angico Vermelho (Anadenanthera colubrina Vell.) em função do desenvolvimento frutos, fim determinar o momento ideal ser realizada coleta dos frutos. Os frutos utilizados no foram coletados árvores nos municípios Jacaré Homes e Monteirópolis, Sertão Alagoas. Adotou-se delineamento estatístico inteiramente casualizado, com quatro repetições contendo 50 cada. classificados cinco estádios (tratamentos) acordo coloração da vagem:...

10.25066/agrotec.v42i1-4.57833 article PT Agropecuária Técnica 2021-12-20

ABSTRACT: Determining actual crop evapotranspiration (ETa) is paramount for irrigation management. The principal measurement methods and physical models generally require weather data that are not readily available. We determined the coefficient (Kc) of sweet oranges during initial development stage evaluated performance Poulovassilis semi-empirical model coupled with a simple soil water balance estimating ETa. ETa was inferred from variation in content over time, measured by time-domain...

10.1590/0103-8478cr20180707 article EN cc-by Ciência Rural 2019-01-01

Abstract Myrciaria floribunda is a species native to the restinga areas of Atlantic Forest that presents great phenotypic variation in fruits, socioeconomic importance regions natural occurrence and high productive potential. The characterization heterogeneous populations crucial for plant selection breeding programs, since it allows distinction superior individuals. aim this study was characterize reproductive structure M. accessions, observe influence climate environment on its process,...

10.1590/0100-29452021618 article EN cc-by Revista Brasileira de Fruticultura 2021-01-01

ABSTRACT: This research evaluated the effects of irrigation on growth and productivity irrigated cassava in Coastal Plateaus Alagoas. The planting was done randomized blocks, with six treatments four replications. were levels function crop evapotranspiration - ETC (L0 = 0% (rainfed), L1 40%, L2 80%, L3 120%, L4 160% L5 200% ETC). total water applied defined as plus effective rain. annual plantations Costal Alagoas, 1,030 mm. Plant increased significantly maximum values following variables...

10.1590/0103-8478cr20210145 article EN cc-by Ciência Rural 2021-10-22
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