Rafael Oliveira Batista

• Professor (Associate) at Federal Rural University of Semi-Árido

Salt stress constitutes one of the main limitations for the expansion of passion fruit cultivation in the Northeast region, especially when it occurs during seedling formation. Liquid fertilizers offer an alternative to reduce the harmful effects of salts on agricultural crops, including on the initial growth of sour passion fruit seedlings. Thus,...

Water scarcity in Brazil's semi-arid region necessitates the agricultural reuse of aquaculture effluents, although emitter clogging remains a challenge. This study evaluated clogging mitigation in drip irrigation systems using liquid anti-clogging fertilizer. The experiment employed a split-split-plot scheme with three water treatments (supply wate...

One of the main environmental challenges of the oil and natural gas industry is the proper disposal of large volumes of water produced during extraction. Therefore, the objective of this study was to evaluate the effects of applying dilutions of produced water on the morphometric and nutritional characteristics of sunflower. The experiment was carr...

A escassez e a qualidade da água no Brasil, evidenciam a necessidade do reúso para atender às crescentes demandas de consumo. A pesquisa realizada entre março e novembro de 2023, focou na análise dos aspectos legais do reúso de água nas unidades federativas brasileiras. Aplicou-se uma metodologia qualitativa, classificando as legislações em cinco n...

A legislação brasileira determina que cada estado estabeleça seus próprios valores de referência de qualidade do solo, os quais deverão refletir a concentração natural de determinada substância sem interferência humana, em virtude das suas peculiaridades regionais, com o propósito de identificar áreas suspeitas de contaminação. Neste sentido, objet...

Salt stress results in physiological changes that inhibit plant growth and development. Ca-complex sources are used as a potential salt stress attenuator. This study was carried out with the aim of verifying the effects of Ca-complex sources in reducing the effects of saline water stress on the physiological aspects of sour passion fruit seedlings....

The variation in the population of pathogenic microorganisms in wastewater over time can be predicted by single-spectral analysis, which outperforms conventional multivariate methods. This type of information is important for the performance of sewage treatment plants. The objective of this study was to monitor the variability of the population of...

The intensification use of the soil in agricultural areas has become a worrying factor, where the presence of animals and machines in an intense form has caused the increase in the soil density. The crop-livestock integration (CLI) is a system that use of these agricultural areas with the aim of alternating crops and animals in the same area, incre...

Objetivou-se, com este trabalho, monitorar agentes físico-químicos e microbiológicos ocasionadores de obstrução e a uniformidade de distribuição em unidades gotejadoras aplicando efluente sanitário tratado. Para isso, o experimento foi montado no delineamento inteiramente casualizado com 12 repetições em esquema de parcelas subdivididas, tendo nas...

Soil organic matter is seen as the most important factor in the assessment of soil management systems that affect soil quality and agricultural sustainability. Cattle manure added to crop residues left on the surface of the soil or incorporated have been used on agricultural properties in the semi-arid region of Brazil in the crop-livestock product...

O sistema de irrigação por gotejamento possui alta vulnerabilidade quando aplica águas residuárias, isso acontece devido à interação dos agentes físicos, químicos e biológicos que estimulam o processo de entupimento, comprometendo, assim, o desempenho e a eficiência do sistema de irrigação. Diante o exposto, o presente trabalho teve como objetivo e...

Aquaculture is a prominent economic activity on the national scenario. However, it also has several environmental impacts. Therefore, the objective of this study was to evaluate the performance of non-self-compensating drippers operating with dilutions of aquaculture wastewater (AW) in well water (WA). For this, five dilutions were tested (D1: 100%...

The objective was to characterize the dilutions of aquaculture wastewater in supply water and the morphometric and productive characteristics of the cactus pear. The experiment was installed at the Water Reuse Experimental Unit in Mossoró-RN, a Semi-Arid region of Brazil. The design was in randomized blocks with five treatments and five replication...

Wastewater is an alternative water source with the potential to guarantee agricultural productivity in semi-arid regions, where quantitative and qualitative scarcity is a limiting factor. This study aimed to analyze the effects of the application of dairy effluent dilutions on the alterations of sodium, calcium, magnesium, and nitrogen contents alo...

Water reuse is necessary for industrial, commercial and domestic activities, being a reality in several countries, but not yet widespread in Brazil, an efficient instrument for managing water resources and minimizing water scarcity in the semi-arid region. The aim is to monitor a compact gray water treatment and agricultural use station, consisting...

Land uses may shift soil biota community composition, and soil chemical traits. Our aims were to assess if the land uses may influence the soil biota community composition and soil chemical traits; if there are differences into soil biota biomass as influenced by land uses; and what are the plant-soil feedback among the land uses, soil biota, and s...

Water availability is a limiting factor for the cultivation of sour passion fruit. Soil management techniques and the use of water-retaining polymers can increase soil water retention, reducing the frequency of irrigation in the crop. In this context, the objective of the research was to evaluate the gas exchange, the chlorophyll index, and the yie...

Modern times have required studies that take into account the main soil features, aligning the use of land with the protection of more sensitive environments. From this perspective, this study aimed to perform a morphological description and determine the physical and chemical attributes for soil classification in the community of Poção, located in...

Studies on soils and their interrelationships with land use in the context of the semi-arid region of Brazil are still scarce, even though they have the potential to assist in understanding the use and management of soil and agricultural crops. From this perspective, this study investigated four land uses in different locations of the Apodi Plateau...

RESUMEN: El objetivo fue evaluar los efectos de la salinidad del agua de riego en la formación de plántulas de maracuyá amarillas utilizando biofertilizantes bovinos comunes y enriquecidos, respectivamente. En este sentido, se realizó un experimento en un invernadero, en la ubicación del Centro de Ciencias Agrícolas y de Biodiversidad CCAB / UFCA,...

Crop residues can either be incorporated into the soil or left on the soil surface as a mulch producing soil organic matter in different quantities, having many potential benefits such as reducing soil compaction caused by passage of agricultural machines. The aim of this study is to evaluate the effect of crop residues such as maize and bean straw...

A espécie Cryptostegia madagascariensis Bojer ex Decne ocorre em zonas úmidas e áridas, encontrando-se dispersa em várias regiões do planeta, onde é empregada principalmente para fins ornamentais. Em determinados ambientes, como a Caatinga e ecossistemas associados do Nordeste brasileiro, a espécie vem se destacando como uma planta invasora. Dessa...

Mineralogical studies are incipient and necessary in the Apodi Plateau, Brazil. This study aimed to evaluate the interrelationship between the mineralogy of the clay fraction and its structural and chemical attributes and to differentiate two important pedo-environments in the semi-arid region of northeastern Brazil (Ferralsol and Cambisols of the...

Sunflower is suitable for family farmers from Northeast Brazil who are benefited by the production of grain and oil and is adequate for crop rotation and for honey production. The need for irrigation in this region leads to the realization of this study for evaluating the production components of four sunflower genotypes irrigated with different le...

To evaluates the leaching effects by saline water (2.0 dS m⁻¹) on the chemical characteristics of a Red Eutrophic Acrisol. This study was carried out under cultivated with the common bean (Phaseolus vulgaris L.), in protected drainage lysimeters, at the lysimeter station of the Irrigation and Drainage experimental area of the Federal University of...

A salinidade do solo é comum, principalmente em áreas cultivadas, em regiões semiáridas no nordeste brasileiro que, aliado a longos períodos de estiagem, são responsáveis pela desertificação nessas áreas, favorecendo a degradação ambiental do solo frente às diversas condições adversas do ambiente salino, visto que, sob certas circunstâncias, torna-...

O percolado de aterros sanitários é um resíduo líquido altamente impactante ao meio ambiente, tornando indispensável à realização de pesquisas que propiciem uma melhor e mais precisa caracterização. Neste contexto, objetivou-se com o presente trabalho, analisar o efeito da aplicação de dosagens de percolado de aterro sanitário (PATS) e água de abas...

Water scarcity is one of the main problems in the Semiarid region of Brazil, which can be mitigated by water resource management strategies. The objective of this work was to classify waters of a watershed in the Semiarid region of Brazil and select the water attributes that most affect the quality of waters used for irrigation (QWI), using multiva...

A escassez hídrica associada a problemas ambientais são fatores que estimulam o desenvolvimento de tecnologias que possibilitem o reúso da água de forma sustentável para fins agrícolas e florestais. Neste sentido, a pesquisa objetivou aperfeiçoar e monitorar o desempenho de uma estação de tratamento e uso agrícola de água cinza instalada na Univers...

There is a growing importance of the theme of water reuse in the context of sustainable constructions. Currently, the increase in demand and the decrease in the supply of quality water is one of the problems that have been affecting, mainly, large urban populations. In this context, there is a need to encourage practices, programs and policies that...

The aim of this study is to obtain the translocation factor by application of landfill leachate (LL) diluted in public irrigation water (IW). Pennisetum purpureum Schum (elephant grass) was cultivated for 83 days in an experimental water reuse unit. The present work was developed at the Experimental Water Reuse Unit (UERA), on the UFERSA campus in...

O saneamento ambiental inadequado contribui para a poluição da água dos mananciais, bem como o surgimento de casos de doenças de veiculação hídrica. No entanto, a radiação solar é uma alternativa de baixo custo, fácil operação e efetiva para desinfecção de águas cinza. Objetivou-se, com o presente trabalho, identificar os agrupamentos de variáveis...

The liquid residue called “produced water” from the exploitation of oil in the ground and sea is generated in large volumes and has significant polluting potential. In the Brazilian semiarid region, this liquid can be applied to the agricultural lands, if properly treated and applied to the soil by dripping. It is an alternative that can mitigate w...

Desempenho de gotejadores operando com lixiviado de aterro sanitário Com a instituição da Política Nacional de Resíduos Sólidos no Brasil, espera-se que o número de aterros sanitários aumente, ao longo dos anos, e com isso a necessidade do desenvolvimento de técnicas de tratamento e, ou aproveitamento dos percolados. Objetivou-se, com este trabalho...

The semi-arid region has long periods of drought, so reusing water is an important alternative to enable irrigated agriculture. The objective of this study was to evaluate the growth and mineral composition of papaya and passion fruit seedlings irrigated with gray water effluents. Two experiments were carried out with papaya and passion fruit seedl...

Soil physical structure is related to porous space dynamics, which is affected by pedogenetic conditions, land uses, and agricultural practices. Thus, the objective of this work was to evaluate physical and structural attributes of Cambissolos under different uses in the Terra de Esperança Settlement Project, in Chapada do Apodi, Governor Dix-Sept...

The landfill percolate (LP) has appreciable amounts of nutrients that can be used in the production of biomass for energy purposes and serves as parameters to study the performance of irrigation systems. The objective of this work is to analyze the drip performance indicators applying diluted landfill percolate, well as the main obstruction factors...

MONITORAMENTO DA BIOINCRUSTAÇÃO EM FITAS GOTEJADORAS APLICANDO ÁGUA COM DISTINTAS TEMPERATURAS E SALINIDADES* JORGE LUIZ DE OLIVEIRA CUNHA1; SUEDÊMIO DE LIMA SILVA2; RAFAEL OLIVEIRA BATISTA2; BLAKE CHARLES DINIZ MARQUES2; DANIELA DA COSTA LEITE COELHO2 E KETSON BRUNO SILVA1 1 Doutores em Manejo de Solo e Água, Departamento de Ciências Agronômicas e...

This study aimed to evaluate, in the second cycle, the growth and production of ‘Orelha-de-elefante Mexicana’ prickly pear (Opuntia sp.) under complementary irrigation with treated domestic sewage. The experiment was carried out in the Milagre Settlement, municipality of Apodi-RN, Brazil, from June 2016 to February 2017. Five treatments were evalua...

Objetivou-se com este trabalho analisar as alterações do desempenho hidráulico de distintos modelos de gotejadores que operaram com água residuária doméstica tratada, bem como obter modelos empíricos em função da variável tempo de operação e qualidade do efluente. Para isso, montou-se um experimento na Universidade Federal Rural do Semi-Árido (UFER...

The yellow passion fruit is a plant climbing botanically that has a good geographical distribution in Brazil, with more than 150 species in the country. The presence of salts in soil and irrigation water is one of the main obstacles in agriculture in the world, caused by low rainfall and high evapotranspirative rates causing the salts to accumulate...

The growing need to increase food production constitutes a serious scientific-technological challenge, requiring the expansion of cultivated sites also with the utilization of degraded areas, such as soils affected by salts. In order to achieve that, alternatives to mitigate such limitations have been pursued, such as the use of biofertilizers in t...

Irrigation effects of produced water treatment, diluted in underground water, were analyzed through the chemical characteristics of argisol with foraging palm. Assay was performed in a randomized block design (RBD), with five replications, in a subdivided split plot scheme. Splits comprised treatments T1 (100% underground water - UW, control), T2 (...

O reúso da água é uma importante ação da gestão integrada dos recursos hídricos que possibilita a convivência com a escassez hídrica no semiárido brasileiro. O sistema de irrigação por gotejamento é o mais adequado para aplicação de esgoto sanitário tratado, entretanto o entupimento de emissores consiste no principal obstáculo à adoção desta tecnol...

The present work aimed to analyze the effects of the application of dilutions of treated gray water (TGW) in well water (WW) on growth and production of millet cv. Ceará (Pennisetum glaucum). The experiment was carried out in a greenhouse, on the department of agronomic and forestry sciences, at the Federal Rural University of the Semi-Arid (UFERSA...

The study of the soil characterization and the relation of its attributes allows a systematic proposal of the local particularities, leading to adequate practices for maintenance and/or preservation of its productive capacity. In this sense, the aim of this study was to evaluate the influence of structural attributes in association with physical an...

A elevada incidência de doenças de veiculação hídrica é atribuída à inadequação dos sistemas de esgotamento sanitário nas áreas rurais do semiárido brasileiro. O uso da radiação solar é uma alternativa na desinfecção de águas residuárias para fins de aproveitamento agrícola, sendo de baixo custo, fácil operação e que não gera subprodutos carcinogên...

The growing need to increase food production constitutes a serious scientific-technological challenge, requiring the expansion of cultivated sites also with the utilization of degraded areas, such as soils affected by salts. In order to achieve that, alternatives to mitigate such limitations have been pursued, such as the use of biofertilizers in t...

We studied the behavior for neem seedlings subjected to irrigation water salinity and bovine biofertilizer and soil drainage. An experiment was carried during the period of January to June/2016 in greenhouse with plants grown in pots. The experimental design was a randomized block with factorial scheme 5×2×2 and four repetitions. The factors consis...

Drip irrigation with diluted sanitary landfill leachate favors the development of grasses on the landfill surface, however, the clogging of emitters of the irrigation systems is the major obstacle for this practice. The objective of this study was to select empirical models of the Christiansen's uniformity coefficient, distribution uniformity coeff...

The use of landfill leachate (LL) to produce biomass for energy and biofuel purposes is an alternative that minimizes environmental degradation. In this context, the objective of this work was to evaluate the effect of using different rates of LL in the fertigation of sunflower (Helianthus annuus L.) crops. The experiment was conducted in a randomi...

The semiarid region is extremely fragile to anthropogenic actions. Thus, the objective of this study is to evaluate the physical and chemical attributes of soils with different agricultural uses. The research was carried out in the municipality of Governador Dix-Sept Rosado. Fertility and physical analyses were performed. The results were interpret...

Different soil managements evidence soil properties, contributing positively or negatively to its quality. A study was conducted in the city of Martins, Rio Grande do Norte (RN) state, in four cultivated areas: corn intercropped with beans (CICB), cassava monocrop (CAMO), bean monocrop (BEMO) and native forest (NF, considered as the original soil c...

O uso planejado de lixiviado de resíduo sólido urbano é uma estratégia voltada à conservação do meio ambiente, servindo como fonte de água e nutrientes para a vegetação que protege as células do aterro sanitário dos efeitos da erosão. O presente trabalho objetivou analisar a alteração dos indicadores de redução da vazão relativa (RQR), redução parc...

From the physics point of view, soil structure is a dynamic attribute that is affected by genetic conditions and anthropogenic changes and requires an integrated approach. Soil water retention curve is one of the main tools used in soil structure evaluations. The objective of this work was to evaluate the structural and chemical attributes of soils...

La erosión es la principal forma de degradación en el mundo, en consecuencia de la pérdida de suelo, agua y nutrientes, provocando daños directos e indirectos. El objetivo de este trabajo es cuantificar las pérdidas de N, P y K por erosión hídrica en condiciones de lluvia simulada mediante la aplicación de seis pruebas de erosión en cultivo continu...

The objective of this work was to analyze the changes in the chemical attributes of an Ultisol irrigated with different dairy effluent dilutions. The experiment was set up using a randomized block design with five dilutions of dairy effluent (DE) in public water supply (PWS) (T1 - only PWS, T2 - 10% of DE plus PWS, T3 - 20% of DE plus PWS, T4 - 30%...

Este estudio tuvo como objetivo analizar el efecto de diferentes presiones de operación en la obstrucción de goteros y en el coeficiente de uniformidad de Christiansen (CUC) en los sistemas de riego por goteo que operan con la agua residual de castanha de cajú. El experimento se estableció en el esquema de parcelas subsubdivididas, con presiones de...

When carrying out this study, the aim was to evaluate physicochemical and microbiological quality in fruit of the papaya Tainung 1, produced under different irrigation time ratios with water from the supply (AA) and from domestic sewage which had been treated first in a septic tank and then with anaerobic filters (AE). The experimental design was o...

MODELOS EMPÍRICOS DA APLICAÇÃO DE ÁGUA RESIDUÁRIA DE SUINOCULTURA POR GOTEJADORES SOB PRESSÕES DE SERVIÇO RAFAEL OLIVEIRA BATISTA1; RUBENS ALVES DE OLIVEIRA2; DELFRAN BATISTA DOS SANTOS3; FERNANDO FRANÇA DA CUNHA2 E SALOMÃO DE SOUSA MEDEIROS4 1 Departamento de Ciências Ambientais e Tecnológicas, UFERSA câmpus Mossoró-RN, Avenida Francisco Mota, no...

A ausência de tecnologia adequada é um dos maiores entraves à competitividade do agricultor familiar e uma barreira que dificulta sua sobrevivência no meio rural. Dito isto, objetivou-se com este trabalho o dimensionamento hidráulico e avaliação de desempenho do sistema de irrigação de baixo custo, bubbler, instalado no Assentamento Milagres em Apo...

The objective of this work was to develop empirical models for hydraulic performance of drippers operating with cashew nut processing wastewater depending on operating time, operating pressure and effluent quality. The experiment consisted of two factors, types of drippers (D1=1.65 L h-1, D2=2.00 L h-1 and D3=4.00 L h-1), and operating pressures (7...

Drip irrigation systems stand out for the use of wastewater, by minimizing water losses and risks to the environment and public health, however, the clogging of emitters is a potential problem in this technology. The objective of this study was to evaluate the flow coefficient of variation (FCV) and the coefficient of statistical uniformity (CSU) o...

The landfill leachate has appreciable amounts of nutrients that can be used to produce biomass for energy purposes. The objective of this work is to analyze the drip performance indicators applying diluted leachate landfill well as the main obstruction factors and the leachate quality. The experiment was set up on split-plot scheme with kind drippe...

This work had the objective of verifying the beneficial use potential for the solid waste generated in an universitary campus, to subside its management planning and actions. The study was carried out at the UFERSA Campus in Mossoró, RN, in four consecutive years, with samplings conducted during regular classes’ seasons. The data was submitted to v...

The experiment was conducted from January to June 2010, in a greenhouse at DSER/CCA/UFPB, Areia, PB to evaluate the effect of irrigation water salinity and bovine biofertilizer on NIM seedling formation in soil with drainage systems. A completely randomized and factorial (5x2x2) design was used with four replicates concerning 5 levels of saline irr...

The experiment was conducted from January to June 2010, in a greenhouse at DSER/CCA/UFPB, Areia, PB to evaluate the effect of irrigation water salinity and bovine biofertilizer on nim seedling formation in soil with drainage systems. A completely randomized and factorial (5x2x2) design was used with four replicates concerning 5 levels of saline irr...