Doutorado em Agronomia (EA)

URI Permanente para esta coleçãohttp://200.137.215.59/tede/handle/tde/181

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Performance morfofisiológica e agronômica do tomateiro sob diferentes regimes hídricos e tratados com Rhizophagus intraradices e Pseudomonas fluorescens
(Universidade Federal de Goiás, 2026-02-25) Silva, Ayure Gomes da; Moura, Jadson Belém de; Moraes, Moemy Gomes de; http://lattes.cnpq.br/5678716451015561; Moraes, Moemy Gomes de; Souza, Rodrigo Fernandes de; Vieira Júnior, Wagner Gonçalves; Fillippi, Marta Cristina Corsi de; Mendonça , Sara Raquel
Water scarcity is one of the main limiting factors for tomato (Solanum lycopersicum L.) production, especially during flowering. In this context, understanding the mechanisms of tolerance to water deficit exhibited by tomato plants becomes essential to mitigate the effects of drought, as well as the use of technologies such as bioinputs that help plants cope with adverse environmental conditions. The underlying hypothesis is that controlled levels of water deficit over a given period induce distinct physiological, biochemical, morphological, and yieldrelated responses, reflecting the plant's adaptive adjustments under different intensities of stress. Additionally, it is assumed that individual or combined inoculation with Rhizophagus intraradices and Pseudomonas fluorescens may lessen the effects of water limitation in tomato plants. The studies were conducted in a greenhouse with the hybrid Momotaro Paz (TAKII SEED), with the objectives of: (i) assessing the biochemical, physiological, and agronomic response of tomato plants grown under controlled levels of water deficit (equivalent to 0, 25, 40, and 50% water restriction) for 10 days (Chapter 1); and (ii) testing the effect of separate and combined inoculation of R. intraradices and P. fluorescens on the response of tomato plants subjected to water deficit (Chapter 2). The first experiment followed a randomized block design with four treatments and five replications. The second experiment used a randomized block design in a 2 x 4 factorial arrangement (water levels – with and without stress x non-inoculated, inoculation with P. fluorescens, inoculation with R. intraradices, and co-inoculated P. fluorescens and R. intraradices), with six replications. Analysis of variance was performed for all parameters, followed by Tukey's test at the 5% probability level in both experiments. A 50% water deficit reduced plant height and stem diameter, the number of flowers and fruits, the fruit mass and diameter, increased the number of fruits with black bottom-end rot. It also altered physiological indicators such as the reduction in CO₂ assimilation rate, relative water content, starch, chlorophyll and carotenoid levels, and the increase in electrolyte leakage and proline and soluble sugar contents. The 25% water restriction level showed few differences compared to the control (0%), suggesting tolerance up to 25% during the 10-day period. In the second experiment under deficit conditions, inoculation with P. fluorescens increased the number of flowers, clusters, and fruits, while inoculation with R. intraradices promoted plant growth. Both, microorganisms individually, positively influenced fruit mass and diameter, maintained the relative water content, and lower electrolyte leakage. Co-inoculation produced intermediate effects, with greater sensitivity in some parameters. It is concluded that water management combined with microbial inoculation is a practical and sustainable alternative to reduce yield losses in tomato production under low soil availability
Potencial energético de biossólido de estação de tratamento de efluentes
(Universidade Federal de Goiás, 2025-10-22) Lemes, Leandro Teles e; Silva, Macksuel Fernandes da; http://lattes.cnpq.br/8425517857562038; Sette Júnior, Carlos Roberto; http://lattes.cnpq.br/6511764239807115; Sette Junior, Carlos Roberto; http://lattes.cnpq.br/6511764239807115; Chagas, Matheus Peres; http://lattes.cnpq.br/6833790612735262; Gerônimo, Fabio Henrique Casarini; http://lattes.cnpq.br/4102566785398237; Bertholdi, Jonas; http://lattes.cnpq.br/0445297015533619; Lima, Mateus de Leles; http://lattes.cnpq.br/7060085364547225
Embargada.
Quantificação do estoque de carbono em espécies arbóreas nativas e no solo em Sistema Integrado
(Universidade Federal de Goiás, 2026-02-26) Velozo, Amanda Prudente; Souza, Eli Regina Barboza de; https://lattes.cnpq.br/7641431808466123; Souza, Eli Regina Barboza de; Calil, Francine Neves; Leandro, Wilson Mozena; Neri, Luciene Machado Da Silva; Ramos, Tatiana Vieira
Over time, interest in adopting sustainable production systems has grown due to the challenges of producing food, fiber, energy, timber and non-timber products in a manner compatible with existing natural resources. Efforts have been made to integrate agricultural, livestock, and forestry activities in order to increase the efficiency of land, energy, nutrient, and labor use. Therefore, this study aims to evaluate: the development over the years of five Cerrado tree species (Angico vermelho – Anadenanthera macrocarpa (Benth) Brenan, Amburana – Amburana cearensis A.C. Smith, Vinhático – Plathymenia reticulata Benth, Baru – Dipteryx alata Vogel, and Jatobá-da-Mata – Hymenaea courbaril L.) under an integrated crop–forest (ICF) system, as well as to estimate the volume, biomass, and carbon stock of these trees at the experimental area of the School of Agronomy of the Federal University of Goiás; the light incidence in relation to the developing tree structure of these five Cerrado species over the months; and the soil fertility and soil carbon stock in the same experimental area. The tree component was established with 3 m spacing between trees and 24 m between rows. The total experimental area is 1.7 hectares and planting took place in December 2019. Twice a year (from 2022 to 2025), during the rainy and dry seasons, two variables of the tree species in the study were measured: total plant height (Ht), in meters (m), and basal stem diameter (D0), in centimeters (cm). Considering the data obtained through the forest inventory (height and diameter), the volume, wood biomass, and carbon of the studied trees were determined. The results showed that A. macrocarpa was the species with the greatest development in diameter and height, while A. cearensis showed the lowest development. A. macrocarpa presented the highest accumulated biomass (21.918 Mg ha⁻¹) and, consequently, the highest accumulated carbon stock (10.959 Mg ha⁻¹), whereas A. cearensis showed the lowest accumulated biomass (0.144 Mg ha⁻¹) and the lowest carbon stock (0.072 Mg ha⁻¹) among the species. Light measurements were collected between 11:00 a.m. and 1:00 p.m., and the light sampling points were located at the center of each plot and at distances of 2.8 m, 4.5 m, and 7.5 m from the central point on the east (E) and west (W) sides. This procedure was carried out twice a year from 2022 to 2025. Light values from the seven sampling points were compared with full-sun light values (13.5 m) and among the studied tree species. The results indicated that, for A. macrocarpa, D. alata, and H. courbaril at sampling point 0, light incidence was lower when compared to A. cearensis and P. reticulata. In contrast, A. cearensis and P. reticulata were under full-sun conditions at all sampling points. H. courbaril stood out as the species with the lowest light incidence at point 0. Regarding soil fertility, soil samples were collected in April 2024 under four treatments, namely: treatment 1, tree rows of the integrated crop–forest (ICF) area; treatment 2, inter-rows of the tree species in the ICF area; treatment 3, cropland area; and treatment 4, permanent preservation area (PPA). To evaluate soil fertility aspects, soil samples were collected from the 0–20 cm depth using a Dutch auger and subsequently identified and sent to a laboratory for soil texture and fertility analyses. For soil bulk density and soil organic carbon (SOC) analyses, trenches 50 cm deep were opened at each sampling point in each treatment, allowing the stratification of sampling into the 0–10, 10–20, 20–30, and 30–40 cm layers. Soil organic carbon (SOC) analysis was carried out as described in the protocols of the ILPF Rede (2023), using an elemental analyzer (CHNS) to determine soil organic carbon content. Soil carbon stock was calculated using a formula that includes soil organic carbon content, soil bulk density, and the thickness of the sampled soil layer. The results showed that the cropland treatment had the highest soil carbon content among the studied areas, while the PPA had the highest soil carbon stock. Soil texture, predominantly sandy, was similar among the studied systems. The ICF areas showed good soil chemical quality, indicating that ICF systems are a good alternative for improving soil fertility while also generating income throughout the year. In the literature, no scientific studies are found addressing these native Cerrado tree species under this experimental arrangement in an integrated crop-livestock-forest (ICLF) system, therefore, this study is novel on the subject.
Fitorremediação de solos contaminados por cromo e níquel oriundos de lodo de curtume e mineração por meio de culturas energéticas
(Universidade Federal de Goiás, 2026-02-20) Muniz, Mariane Porto; Severino, Maico Roris; https://lattes.cnpq.br/2546008836929749; Lana, Marcos Alberto; Leandro, Wilson Mozena; https://lattes.cnpq.br/9052207260053937; Souza, Eli Regina Barboza de; Calil, Francine Neves; Oliveira Junior, Juarez Patricio de; Oliveira, Carolina Brom Aki de; Lana, Marcos Alberto
Leather production and the mining complex play a crucial role in the global economy. In Brazil, the state of Goiás stands out in third place for tanned leather production and holds large reserves of nickel (Ni) and chromium (Cr). However, these activities can lead to the contamination of land with potentially toxic elements (PTEs), such as chromium and nickel. Phytoremediation is a bioremediation technique that involves the direct use of plants for the transfer or stabilization of toxic metals in contaminated soils. Bioenergy is one of the few decarbonization options for the energy system in the short to medium term. Nevertheless, it is often criticized due to indirect land-use changes, the lack of high-quality agricultural land, and competition with food production, while contaminated areas remain unused. The present study aims to provide a sustainable solution to both problems by facilitating soil decontamination through phytoremediation combined with the cultivation of energy crops. The experiments were conducted in a greenhouse at the School of Agronomy of the Federal University of Goiás (Goiânia - GO, Brazil), using soils collected from a tannery sludge spill area (Chapter I) and a chromite mining area in serpentinite rock (Chapter II). The experimental design consisted of randomized blocks with four replications and five treatments, including four energy crops (Capiaçu grass, purple grass, sugarcane, and energy cane) and spontaneous plants. For the purple and Capiaçu grasses, harvesting occurred after six months of cultivation, representing the sum of two cuts; for the sugarcane, energy cane, and spontaneous plants, harvesting took place after 12 months. Biometric characteristics, dry biomass, energy yield, chromium and nickel accumulation in the biomass (shoot and root), and total chromium and nickel content in the soil were analyzed. Data were submitted to analysis of variance (ANOVA), and when differences were observed, the Tukey test was applied, both at a 5% probability level. Biomass production, energy yield, and plant growth were not affected by high levels of chromium and nickel. The highest accumulations of these metals occurred in the roots, evidencing phytostabilization. In conclusion, energy species can be successfully cultivated in contaminated soils for bioenergy purposes.
Fontes e doses de boro na implantação e desenvolvimento do eucalipto em áreas de cerrado
(Universidade Federal de Goiás, 2026-02-20) Milagres, Vitor Augusto Cordeiro; Silva, José Geraldo Mageste da; Flores, Rilner Alves; http://lattes.cnpq.br/6161143914254137; Flores, Rilner Alves; Santos, Wedisson Oliveira; Collier, Leonardo Santos; Souza Júnior, Jonas Pereira de; Santos, Glenio Guimarães
Embargo
Culturas bioenergéticas na fitorremediação de níquel e cromo de solos derivados dos serpentinitos
(Universidade Federal de Goiás, 2026-02-20) Tempesta, Izamara Fonseca; Severino, Maico Roris; http://lattes.cnpq.br/2546008836929749; Leandro, Wilson Mozena; http://lattes.cnpq.br/9052207260053937; Leandro, Wilson Mozena; Lana, Marcos Alberto; Oliveira Júnior, Juarez Patrício de; Calil, Francine Neves; Souza, Eli Regina Barboza de
Embargo
Mecanismos associados à interação Meloidogyne enterolobii e genótipos de Capsicum spp. resistente e suscetível
(Universidade Federal de Goiás, 2026-03-05) Souza, Daniela Domingos de; Rocha, Mara Rúbia da; http://lattes.cnpq.br/4660306671671575; Rocha, Mara Rúbia da; Pinheiro, Jadir Borges; Boiteux , Leonardo Silva; Santiago, Débora Cristina; Filippi, Marta Cristina Corsi De
Embargo
Inativação fotodinâmica das sementes, técnicas de conservação e anatomia dos frutos de mangaba em desenvolvimento
(Universidade Federal de Goiás, 2026-02-26) Patrocinio, William Cezar Trindade do; Souza, Eli Regina Barboza de; https://lattes.cnpq.br/7641431808466123; Pilon, Lucimeire; Tôrres, Flávio Alves da; https://lattes.cnpq.br/1713250447051507; Silva, Flávio Alves da; Pilon, Lucimeire; Gonçalves, Leticia de Almeida; Dias, Fernanda Martins; Bernardes Neto, José Feliciano
Mangaba is a fruit with potential for exploration. However, some information about its biology is unknown, and there are also obstacles to its consolidation in the market and the propagation of the species. This study is divided into chapters with different objectives. The first and second chapters present a general introduction and a literature review of the main topics covered in the experimental chapters, ranging from the general characteristics of the species to post-harvest conservation techniques, seed health quality, and fruit anatomy. Chapter three aims to anatomically characterize the pericarp of the fruit of Hancornia speciosa Gomes var. gardneri, found in the Brazilian Cerrado, during its development to maturity. The results detail important structures related to the survival and perpetuation of the species, as well as aspects of the fruit's post-harvest quality. In this sense, new information is described in the anatomical characterization of the fruit, making this study fundamental for understanding the biology of the species. Chapter four aims to determine whether photodynamic inactivation and immersion in sodium hypochlorite are effective in reducing pathogens in seeds. This study involves three experimental parts: seeds immersed or not in 1% sodium hypochlorite to evaluate the occurrence of endophytic fungi; in vitro inactivation with methylene blue and toluidine blue irradiated with LED light to assess the mortality of the pathogens found in the previous experiment; and the physiological quality of seeds treated with the saniti zers used in the other two experiments regarding germination, germination speed index, first germination count, primary root protrusion, seedling length, and seedling fresh and dry weight. The results show that 1% sodium hypochlorite and inactivation with methylene blue and toluidine blue are effective in fungal control in mangaba seeds, eliminating up to 100% of the fungi without compromising physiological quality. The fifth chapter aims to evaluate the effects of hydrocooling on the preservation of mangaba fruits stored at ambient and refrigerated conditions. The parameters evaluated include mass loss, soluble solids, titratable acidity, soluble solids/titratable acidity ratio, pH, firmness, vitamin C content, luminosity, chromaticity, and hue angle. The results show that storage temperature and the time spent immersing the fruit in ice water influence the effect of hydrocooling, and it is not possible to extend the shelf life of mangabas. Mangabas can be stored at 5°C and 10°C for 12 days. Conversely, deterioration occurs after eight days at 25°C. The final chapter aims to evaluate the effects of the combination of hydrocooling and calcium chloride on mangaba storage. Mangabas were evaluated based on mass loss, soluble solids, titratable acidity, vitamin C, firmness, soluble pectin, and polygalacturonase. Storage temperature and low relative humidity influenced the effect of hydrocooling combined with calcium chloride, which was not effective in extending the shelf life of mangabas.
Uso da enxertia interespecífica como ferramenta para mitigar os efeitos do déficit hídrico em tomateiro
(Universidade Federal de Goiás, 2026-02-23) Silva, len Pereira de Paiva Bento da; Nascimento, Abadia dos Reis; Carneiro, Renê Gonçalves da Silva; Moraes, Moemy Gomes de; https://lattes.cnpq.br/5678716451015561; Moraes, Moemy Gomes de; Evangelista, Zeuxis Rosa; Melo, Hyrandir Cabral de; Amanda Magalhães Bueno; Souza, Eli Regina Barboza de
Embargo
Potencial agronômico do fosfato natural calcinado em sistemas de cultivo com feijão-comum, milho e soja em solos do cerrado goiano
(Universidade Federal de Goiás, 2025-12-08) Silva, Manoel Lucas da; Leandro, Wilson Mozena; http://lattes.cnpq.br/9052207260053937; Leandro, Wilson Mozena; Oliveira , Carolina Brom Aki de; Santos, Tassia Tuane Moreira dos; Souza, Eli Regina Barboza de; Calil, Francine Neves
Embargado
Efeitos de agrotóxicos sobre Cordyceps javanica (Hypocreales: Cordycipitaceae): germinação, crescimento, persistência em folhas de soja e virulência a Bemisia tabaci (Hemiptera: Aleyrodidae)
(Universidade Federal de Goiás, 2025-09-25) Sousa, Larissa Moreira de; Quintela, Eliane Dias; http://lattes.cnpq.br/7426637066408803; Quintela, Eliane Dias; Boaventura, Heloiza Alves; Godinho, Karina Cordeiro Albernaz; Bezerra, Jadson Diogo Pereira; Pereira , Jaqueline Magalhães
Embargado
Estratégias de manejo para otimização da produção e qualidade de microverdes produzidos em ambiente controlado
(Universidade Federal de Goiás, 2025-08-22) Sousa, Kedinna Dias de; Guedes, Ítalo Moraes Rocha; http://lattes.cnpq.br/7797265989685138; Pilon, Lucimeire; http://lattes.cnpq.br/9725565352475852; Silva, Flávio Alves da; http://lattes.cnpq.br/1713250447051507; Guedes, Ítalo Moraes Rocha; http://lattes.cnpq.br/7797265989685138; Pilon, Lucimeire; http://lattes.cnpq.br/9725565352475852; Purquerio, Luis Felipe Villani; http://lattes.cnpq.br/5391975384650292; Rosa, Márcio; http://lattes.cnpq.br/7161811963507494; Silva, Fábia Barbosa da; http://lattes.cnpq.br/4603673677020665
Embargado
Fungo micorrízico orquidoide Waitea circinata no controle de Meloidogyne spp. nas culturas do tomate e soja
(Universidade Federal de Goiás, 2025-08-21) Faria, Denner Robert; Araújo, Leila Garcês de; http://lattes.cnpq.br/3488880262260757; Carneiro, Renê Gonçalves da Silva; http://lattes.cnpq.br/4088543783074333; Rocha, Mara Rúbia da; http://lattes.cnpq.br/4660306671671575; Rocha, Mara Rúbia da; http://lattes.cnpq.br/4660306671671575; Santiago, Débora Cristina; http://lattes.cnpq.br/6351034014282018; Pinheiro, Jadir Borges; http://lattes.cnpq.br/4664314218191352; Marques, Eder; http://lattes.cnpq.br/4325914129692944; Filippi, Marta Cristina Corsi de; http://lattes.cnpq.br/0029536556461484
Embargado
Macaúba (Acrocomia aculeata): análise cienciométrica, caracterização morfofisiológica e estratégias para produção de mudas
(Universidade Federal de Goiás, 2025-08-22) Neri, Luciene Machado da Silva; Souza, Eli Regina Barboza de; http://lattes.cnpq.br/7641431808466123; Souza, Eli Regina Barboza de; http://lattes.cnpq.br/7641431808466123; Vieira, Muza do Carmo; ttp://lattes.cnpq.br/3892400622755069; Souza, Jaqueline Lima da Conceição; http://lattes.cnpq.br/0969910887801284; Calil, Francine Neves; http://lattes.cnpq.br/2520537051838618; Leandro, Wilson Mozena; http://lattes.cnpq.br/9052207260053937
Embargado
Diagnóstico dos fatores biofísicos e de manejo que influenciam a produtividade da soja no cerrado Goiano
(Universidade Federal de Goiás, 2025-06-06) Santos, Thaynara Garcia; Flores , Rilner Alves; http://lattes.cnpq.br/6161143914254137; Battisti , Rafael; http://lattes.cnpq.br/9350992609794419; Flores, Rilner Alves; http://lattes.cnpq.br/6161143914254137; Somavilla, André; http://lattes.cnpq.br/1931042200424802; antos, Elcio Ferreira dos; http://lattes.cnpq.br/5602211640158588; Marques, Letusa Momesso; http://lattes.cnpq.br/7154180150340351; Lopes, Arthur Gabriel Caldas; http://lattes.cnpq.br/5760902349480218
Embargada.
Desempenho de genótipos de soja tipo-alimento de tegumento colorido em cultivo orgânico e convencional e aplicação de grãos como conservas e drageados
(Universidade Federal de Goiás, 2016-03-31) Tassi, Adriana Luiza Wain; Caliari, Márcio; http://lattes.cnpq.br/3558164788327179; Vera, Rosângela; http://lattes.cnpq.br/1595946128237501; Soares Junior, Manoel Soares; http://lattes.cnpq.br/0920319108540253; Soares Junior, Manoel Soares; Souza , Eli Regina Barbosa de; Borges, Jácomo Divino; Bassinello, Pricila ZaczuK; Garcia, Marina Costa
The soybean [Glycine max (L.) Merrill] of colored tegument (yellow, brown and black) is indicated for human consumption and has been genetically improved, aiming at adding flavor, palatability and productivity. However, the food-type soybean market, as well as those of brown and black teguments are recent in Brazil. Consequently, soy-based food can be seen as an opportunity for the consumer market, as well as for the food industry. The objective of this work was to know more about these materials, regarding their productive performance in the organic and conventional systems in the Cerrado, and also to obtain information about their nutritional, functional, microbiological and sensory acceptance potential after canning and dragee processing. In the cultivation of organic soybean, twelve genetic materials were evaluated for the physiological, sanitary and chemical characteristics, being seven yellow tegument materials, two brown and three black. In conventional soybean cultivation, four materials were evaluated for their adaptation to the agronomic characteristics, physiological and sanitary qualities of the seeds. Food-type soybeans were evaluated with yellow, black and brown teguments, processed as preserves and as chocolate dragees. For all preserves, the objective was to verify the effect of maceration time and acid concentration. For the yellow soybean, the acetic acid was used in the brine (in relation to the grain mass) and for the brown and black soya beans, ascorbic acid. The effect was evaluated on the physical characteristics of the soybean preserves, through response surface methodology and composite central rotational design. In addition to evaluating the chemical, microbiological and sensorial characteristics of the selected preserve. For all reasons, the objective of this study was to evaluate the effect of the time of roasting in the microwave and the size of the grains of the food-type soybean for all the colors of tegument, yellow (BRSMG 790 A), black (line DF 06-81-1) and brown (BRM line 04-4382-4), yield, instrumental hardness, crispness and flavor of the toasted soybean core. In relation to the soybean cultivated in the organic system, nine of the evaluated genetic materials had good biological characteristics for soybean grain-type, with mass values of 1000 grains between 200 and 254 g. The genotypes presented satisfactory levels of protein between 37.4 and 43.1 g 100 g-1 (dry basis), and of isoflavones, between 101.8 and 190.8 mg 100 g-1 (defatted sample). The colored genotypes selected from organic cultivation and multiplied in the conventional system were yellow (BRSMG 790A), black (line DF 06-81-1) and brown (BRM 04-4382-4). These presented a cycle of 130 days and the height of the plant was considered adequate for mechanical harvesting. The BRM 04-4382-4 line showed the best results for height of insertion of the first pod (17.3 cm), number of pods with three grains (13.8 units), and stand on maturation of 14.9 plants per linear meter. The cultivar BRSMG 790A showed good adaptation to the region of Goiânia-GO, with a yield higher than those observed in Minas Gerais. As for processed grains, the presence of acetic acid in brine was detrimental to the quality of the yellow soybean preserves (BRSMG 790A). In contrast, the maceration time increased the moisture content and reduced the hardness of the grains. The preserve produced with maceration time of 100 min and zero concentration of acetic acid were selected, which presented lower hardness and loss of total solids in cooking water and higher content of total phenolic compounds and moisture in the grains. In this condition they 36 obtained values of 15.5 g 100 g-1 for protein and 7 g 100 g-1 for lipids. In both preserves the essential amino acid profile was not greatly affected by the processing, presenting amounts equivalent to that required as daily intake of children and adults. The selected yellow soybean preserved 36.8% of the antioxidant activity of the grains in natura. The preservation of black soybeans (line DF 06-81-1) and brown (BRM 04-4382-4) were favored by the ratio of maceration time and concentration of ascorbic acid in the brine, also presenting low loss of phenolic compounds in relation to the contents obtained in natura grain. The selected preserves of each color were obtained with maceration time of 50 min and ascorbic acid concentration of 0.15 g 100 g -1 , but for anthocyanin contents there were 100% losses, suggesting new studies for thermal treatments. As for the selection of the roasted core in microwaves, the best scores (flavor, crispness and hardness) were obtained for the large size grains (sieve 15) for all selected genetic materials. Resistant starch was not detected. But high levels of proteins and lipids were detected. All soybean preserves and dragees (yellow, brown and black) obtained were microbiologically stable products and had good sensory acceptance. Therefore, it can be concluded that the food-type soybean of tegument color can be grown in the cerrado, as well as its applicability, as soybean preserves and as chocolate soybeans dragees, because they have high potential of commercialization and are technologically viable.
Uso de esterco bovino em integração lavoura pecuária na recuperação de solos na agricultura familiar
(Universidade Federal de Goiás, 2025-02-20) Vieira, Renato Dusmon; Leandro, Wilson Mozena; http://lattes.cnpq.br/9052207260053937; Leandro, Wilson Mozena; http://lattes.cnpq.br/9052207260053937; Oliveira Júnior, Juarez Patrício de; http://lattes.cnpq.br/3493497589009413; Matos Filho , Hélio Aparecido de; http://lattes.cnpq.br/8561847232571500; Souza , Eli Regina Barboza de; http://lattes.cnpq.br/7641431808466123; Calil , Francine Neves; http://lattes.cnpq.br/2520537051838618
Embargada,
Irrigação Autonôma Integrada Para Eficientização do Uso Da Água E Energia
(Universidade Federal de Goiás, 2025-02-27) Mendes, Andre Luiz Milhardes; Evangelista, Adão Wagner Pego; http://lattes.cnpq.br/5171893735359718; Alves Júnior, José; http://lattes.cnpq.br/3418524049655817; Alves Júnior , José; Souza, João Maurício Fernandes; Sandri , Delvio; Pena , Diogo da Silva; Casaroli, Derblai
The efficient use of water and energy are some of the main challenges of irrigated agriculture. On average in Brazil, irrigators spend around 10% of the total production cost on energy, and due to lack of correct management, they waste 20 to 30% of the water applied. There are many technologies available to increase the efficiency of both systems and management, one of which is irrigation automation. If, on the one hand, the automation of irrigation systems is still not widespread among small irrigators, it is quite widespread among those who produce in protected environments. However, correct irrigation management is still little adopted due to the lack of management integrated into the automation system. In large areas, especially irrigated by central pivot, irrigation management programs have been adopted more frequently. However, there is still an excessive expenditure of energy in pumping water, as pumping station engines are normally sized to meet the steepest point of the terrain, leaving the irrigation system constantly operating at maximum power, wasting energy. In this case, the technology that needs to be used is the frequency inverter in the electric motor. However, commercially available options are expensive, which limits access to this technology by irrigators. Thus, the objectives of this thesis were: 1) to develop a low-cost irrigation controller with integrated irrigation management based on information from soil and/or climate sensors, and its field validation in irrigation management for pepper crops in protected environment; 2) build a low-cost motor pump rotation control system, considering the variation in system pressure according to the variation in terrain unevenness, and validate the proposed system, in an area irrigated by a central pivot, evaluating the effects on the blade irrigation, uniformity of water application, and their consequences in millet cultivation. The studies were carried out in the laboratory and in the field at EA-UFG in Goiânia-GO, from 2022 to 2023. In study 1, pepper plants irrigated by the new controller produced 10.48% more flowers and 36.78% more peppers per plant, using 39.70% less water throughout the cultivation cycle, compared to the conventional controller. Thus, the new system is an important alternative for irrigation automation, with the advantage of integrated autonomous management and low cost. In study 2, there was an effective reduction of 8.11% in the engine's electrical energy consumption. The modernization cost was 36.87% lower compared to commercial automation. The fluctuation in the unevenness of the land altered the irrigation depth, but did not interfere with the uniformity of water applied, and consequently no difference was observed in the growth and productivity of millet plants. Therefore, this alternative modernization is a viable technical option for central pivot systems, and its viability increases as the terrain gradient increases.
Consórcios de rizobactérias multifuncionais: aplicações e eficiência na cultura do feijão-comum
(Universidade Federal de Goiás, 2024-12-11) Oliveira, Ana Paula Santos; Ferreira, Enderson Petrônio de Brito; http://lattes.cnpq.br/6292879655540619; Ferreira, Enderson Petrônio de Brito; Lacerda, Mabio Chrisley; Mirza, Cássia Cristina Rezende; Rabelo, Kassia Cristina de Caldas; Leandro, Wilson Mozena
Embargada.
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