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| Registros recuperados: 5.225 | |
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| Maia Júnior, Sebastião de Oliveira; Andrade, Jailma Ribeiro de; Reis, Lígia Sampaio; Santos, Claudiana Moura dos; Silva, Lennon Kledson dos Santos; Martins, Gleica Maria Correia. |
| Weeds are a serious threat to agriculture because they compete with crops, thereby interfering in production. As such, this study aimed to assess weed control using soil solarization and mulching on the growth and yield of cowpea. A completely randomized design was used, with eight treatments and four repetitions. The treatments consisted of a combination of two management practices, namely soil solarization (with and without) and three mulches (castor bean, rattlepod and spontaneous vegetation), as well as no mulching. Non-solarized soil and without mulch increased the number and dry weight of weeds, while the main stem length of the cowpea plants decreased. Mulching increased the pod length and number of seeds per pod regardless of solarization, as well... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3938 |
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| Wenneck, Gustavo Soares; Saath, Reni; Santi, Danilo Cesar; Araújo, Larissa Leite de; Santos, Josélia Portilho dos; Oliveira, Giovanna Gabriela Ferreira de. |
| The commercial exploitation of pumpkin seeds, at the flour form toasted or to the production of oil, requires knowledge about the activity of water and equilibrium moistures. This study aimed to determine the equilibrium isotherms to the pumpkin seeds and describe the dynamics of the process upon its physicochemical quality. With the static method, the equilibrium isotherms were determined for different temperatures and activities of water (0.110 to 0.885 dry basis), provided conditions by the conditioner chamber of atmosphere, with the weighing of the samples until the constant mass. The hygroscopic balance of the seeds was directly proportional to the activity of water and decreased with increasing temperature, for the same value of water activity. The... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4090 |
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| Costa, Daianna Pereira; da Silva, Juliana Nascimento; Assunção, Donielsin da Silva; Penteado, Fritz Mohn; Nascimento, Abadia dos Reis. |
| The cultivation of hybrid tomatoes, intended for fresh consumption, with a determined growth habit, and without support, is an alternative that has a lower production cost. The research aimed to evaluate the productivity and economic viability of different tomato genotypes, with a determinate and indeterminate growth habit. The experimental design was in completely randomized blocks. Ten hybrids and a variety were grown in 2016, and nine hybrids, and a variety in 2018, with a spacing of 0.5 meters between plants. Harvests were carried out in four periods in 2016, at 72, 82, 97, and 105 days after transplanting (DAT); and in 2018 at 81, 87, 97, and 111 DAT. After harvesting, the gross value of production and profit were quantified. The hybrids that obtained... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3823 |
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| Silva, Angela Oliveira; Buso, Wilian Henrique Diniz. |
| One of the main problems faced in corn cultivation, especially in Cerrado regions, is the deficiency of micronutrients. Among the micronutrients essential for the development of plants, boron (B) stands out for participating in a series of physiological processes. Based on this, the present work aimed to evaluate the performance of corn under fertilization with different sources and doses of boron. The randomized block design in a 4x3 factorial scheme was used. Four boron doses (0, 1, 2, and 3 kg ha-1) and three nutrient sources (boric acid, borax, and ulexite), applied in topdressing, were evaluated. Plant height (cm), stem diameter (mm), first ear insertion height (m), ear length (cm), ear diameter (mm), number of rows per ear, number of grains per row,... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4464 |
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| Salles, Josiane Souza; Jorge, Marçal Henrique Amici; Costa, Edilson; Melo, Raphael Augusto de Castro e; Lima, Alexandre Henrique Freitas de; Binotti, Flávio Ferreira da Silva. |
| The use of quality seedlings of eggplant is directly related to the success of their production, with polymers added to the substrate, which work as water conditioners, increase the water retention capacity, and provide better seedling quality. The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3)... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5472 |
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| Mello Duarte, Jéssica Rodrigues de; Basílio, Scarlet de Aguiar; Silva, Isabela Carolina; Moreira, Elaine Gleice Silva; Pelá, Adilson. |
| Coriander (Coriandrum sativum) is a species highly appreciated in Brazilian cuisine and of high nutritional importance due to the presence of vitamins, calcium, and iron. Leafy vegetables are considered nutritionally demanding as their cycles are relatively short and the lack of any essential element affects their growth, yield and quality. This study aimed to evaluate the response of coriander plants (Coriandrum sativum L.) to foliar spraying of boron doses. The experiment was carried out in a greenhouse at The State University of Goiás, Campus Ipameri, in Ipameri-GO. The experimental design was completely randomized, with five treatments and four replications. The treatments consisted of five boron doses applied by foliar spray (0, 1.0, 1.5, 2.0 and 3.0... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3427 |
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| Perini Vengen, Andressa; Bartzen, Bruna Thaina; Mattei, Eloisa; Rocha de Moraes Rego, Carlos Augusto; Piano, Jeferson Tiago; Rabello de Oliveira, Paulo Sergio. |
| This study aimed to evaluate the decomposition and release of nutrients from the remaining straw of two annual forage species conducted in an integrated crop-livestock system (ICLS). The experimental design used was randomized blocks, in split plots, with three replicates. The managements were allocated in the plots (52 m2): without grazing, one grazing, and two grazings. Subplots were defined by material collection times after the forage’s desiccation (0, 30, 60, 90, and 120 days after desiccation). Dry matter yield, amounts of carbon, nitrogen, phosphorus, and potassium, and half-life time were evaluated. Oat cultivar IPR Esmeralda had the highest initial dry matter yield (6,099 kg ha-1) when not grazed, while triticale cultivar IPR 111 showed the... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4963 |
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| de Vares Rossetti, Karina; Centurion, José Frederico. |
| In the face of the elevated cost of economic and environmental order to recover degraded soil, the monitoring of the structural quality of the soil through physical and plant indicators is recommended. This way, this work aimed to verify which parameters may be used together with soil penetration resistance (PR), after compression induced by agricultural machinery traffic in Haplustox (LVd) and an Eutrustox (LVef), grown with corn. The experiment was conducted with a randomized block design in a split-plot scheme with four replications. Five treatments and three soil layers (0-0.10; 0.10-0.20, and 0.20-0.30 m) for each soil class were evaluated. The treatments were: NC = conventional preparation without additional compression; C14, C17, and C110 = one pass... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5092 |
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| Aires, Eduardo Santana; Aragão, Carlos Alberto; Gomes, Itala Laiane Silva; Souza, Gilmário Noberto de; Andrade, Isa Gabriela Vieira de. |
| This study aimed to evaluate different substrates to produce yellow passion fruit seedlings. For this purpose, an experiment was carried out in a greenhouse, from April to June 2016. A completely randomized design with five replications, in a 6 x 5 factorial scheme was used. The first factor was the alternative substrates (poultry, cattle and equine manure, sugarcane and coconut bagasse, and Organomais compost). The second factor was the replacement levels to the commercial substrate of Plantmax® (100:0, 75:25, 50:50, 25:75, 0:100). The seedling evaluation was carried out 42 days after sowing. The following variables were analyzed: length, width, and the number of leaves; plant height and shoot dry matter. A significant effect (P<0.05) for the... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3890 |
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| Rodrigues,Tatiana P. N. da S.; Pandorfi,Héliton; Guiselini,Cristiane; Almeida,Gledson L. P. de; Morrill,Waldirene B. B.. |
| ABSTRACT The objective of this research was to analyze the differences between the food behaviors observed under the factors of production environment, sex and lighting system, using stochastic tools of multivariate analysis. As for the thermal characteristics of the environment, air temperature (T, °C), enthalpy (H, kJ kg-1), and black globe temperature and humidity index (BGTHI) showed high positive correlation with each other and strong negative correlation with relative humidity (RH, %). The “male drinking” behavior was positively associated with thermal characteristics of the environment in the three periods of the day, that is, the act of drinking more water would be a way to alleviate thermal stress. Birds subjected to red LED showed a strong... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal welfare; Broiler farming; Lighting system; Principal component analysis; Thermal comfort. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300272 |
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| Prado,Giuliani do; Colombo,Alberto. |
| ABSTRACT This work aimed to simulate the water distribution of traveler gun irrigation, working with asymmetrical wetted angles and in windy conditions. In the simulations of a sprinkler with uniform radial profile, the following were considered: i) wetted angles between 180 and 330°; ii) wetted angle asymmetries from 0 to 90°; iii) wind speeds from 0 to 4.5 m s-1; and iv) wind direction of 0, 45, and 90°. Christiansen uniformity coefficients (CU) were calculated for strip widths from 30 to 100% of the sprinkler wetted diameter (WD). Regardless of the wetted angle adjustment, irrigations under wind speeds of 4.5 m s-1 should be avoided and strip spacings of less than 50% WD provide high CU for wind speeds up to 3.0 m s-1. For any wind conditions,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Strip width; Travel path; Uniformity coefficient. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400443 |
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| Santos,Cleberton C.; Bernardes,Rodrigo da S.; Goelzer,Ademir; Scalon,Silvana de P. Q.; Vieira,Maria do C.. |
| ABSTRACT Information on the physiological responses of native plants from the Brazilian Cerrado regarding the use of chicken manure and luminosities are important for their silvicultural management. Thus, aimed to evaluate the effect of chicken manure and luminous availability on the photosynthetic metabolism of Alibertia edulis (Rich) A. Rich. The experiment was carried out in pots, testing five doses of chicken manure – CM (0.00, 2.08, 4.16, 6.24 and 8.32 g kg-1) incorporated at Dystroferric Red Latosol, and two luminous environmental (full sun and 50% shaded). The higher CO2 assimilation rate, stomatal conductance and carboxylation efficiency of Rubisco occurred in seedlings grown in full sun. The seedlings showed higher photochemical indicators in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Marmelo-do-cerrado; Chlorophyll-a fluorescence; Physiological adjustments; Organic residue; Shaded. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400420 |
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| Neto,Lauro S.; Kmiecik,Leonardo L.; Jasper,Samir P.; Zimmermann,Gabriel G.; Savi,Daniel. |
| ABSTRACT The hydraulic remote control system allows the transfer of energy from the engine through a flow of hydraulic oil to engines and implements pulled by agricultural tractors, which can interfere with its energy and operational performance. This study aimed to evaluate the interference of the number of remote control valves in use on the operational and energy performance of an agricultural tractor, using a productivity management system. The experiment was conducted in a strip-plot design, with five replications and three treatments, which consisted of the number of remote control valves in use (1, 2, or 3), totaling 15 experimental units. The results were subjected to normality and homogeneity tests and analysis of variance, followed by the Tukey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Power on the drawbar; Hydraulic system; Operational speed; Specific consumption; Engine thermal efficiency. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300356 |
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| Stringari,Eduardo H.; Petrauski,Alfredo; Petrauski,Sandra M. C.; Azevedo,Ricardo L.; Savaris,Gustavo. |
| ABSTRACT This study aimed to present a solution in glued laminated timber to replace frame structures built in reinforced concrete and metallic structure, which are common in agricultural buildings in western Paraná such as those destined to laying poultry house building by agricultural cooperatives. Structural behavior of frames build from Araucaria angustifolia glued boards and vegetable oil-based polyurethane adhesive was evaluated. Tests were carried out to characterize wood and adhesive to obtain verification/sizing parameters. Initially, a full-scale structural project was conducted to meet standard laying poultry house specifications. Afterwards, five units of straight three-articulated frames on a 1:2.5 reduced scale were designed, built, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Timber structure; Rural buildings; Adhesives; Araucaria angustifolia. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200122 |
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| Passalaqua,Bruna P.; Molin,José P.. |
| ABSTRACT The need for accuracy in sugarcane machine traffic has boosted the adoption of automatic steering systems. These have been used in tractors pulling transhipment trailers. Such sets are long and articulated, which hinders their performance and benefits due to alignments in curved and laterally sloped paths. In this sense, this study aimed to quantify shifts in direction to which tractors and transshipment trailers are subjected while traveling straight and curved paths on different terrain slopes. We evaluated an internal transport system composed of one tractor and two three-axle transshipment trailers, equipped with GNSS receivers and RTK correction system, for their respective positioning. Pass-to-pass errors were evaluated by differences in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lateral slope; Automatic steering; Traffic control. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200223 |
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| Paes,Juliana L.; Alves,Thaís B. S.; Silva,Leonardo D. B. da; Marques,Anieli de S.; Dias,Valentina R. S.. |
| ABSTRACT One way of making livestock farming a more sustainable practice is to raise cattle organically. However, regardless of the production system, there is a generation of residues that can be converted into energy resources using biodigesters. This study aimed to evaluate the addition of inoculum in the anaerobic biodigestion of cattle manure under organic (OPS) and conventional production systems (CPS) in an Indian model biodigester. The physicochemical (pH, EC, TS, VS, DBO, and COD) and microbiological characteristics of the affluent and effluent, as well as the production, potential, and qualitative characteristics of the biogas, were evaluated. CPS showed higher reductions in TS, VS, BOD, and COD than OPS, with the highest effect of biogas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anaerobic biodigestion; Biogas; Starting point; Biofertilizer potential. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200146 |
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| Vanzela,Luiz S.; Araujo Junior,Osvaldo; Lima,Ronaldo C.. |
| ABSTRACT Considering the importance of topographic surveys to determine soil volumes and study efficient and accessible alternatives for this operation, this study aimed to analyze methods and respective equipment for planialtimetric surveys to determine soil volume. An experimental grid was installed in an area locate in Fernandópolis, SP, Brazil, in which quotas were measured by geometric leveling (standard method), trigonometric leveling, leveling with receivers of the Global Navigation Satellite System (GNSS) by relative (frequencies L1/L2) and absolute positioning (code C/A) and extraction of altitudes in digital terrain model from SRTM and ASTER images. In comparison to geometric leveling, trigonometric leveling was the most accurate in determining... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: GNSS; Geometric leveling; Trigonometric leveling; Geomatics. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200207 |
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| Barnabé,Janice M. C.; Pandorfi,Héliton; Gomes,Nicoly F.; Ameida,Gledson L. P. de; Guiselini,Cristiane. |
| ABSTRACT An adequate thermal environment in pig farming facilities is essential to ensure productivity and animal welfare. The objective of this study was to evaluate the behavior and performance of finishing pigs, subjected to climate-controlled environments and supplementary lighting. Twenty-seven pigs (3/4 Duroc, 1/4 Pietrain) were kept in pens with no climate control, pens with forced ventilation and pens with adiabatic evaporative cooling system, associated with 12 h of natural light, 12 h of natural light + 4 h of artificial light and 12 h of natural light + 6 h of artificial light. The experimental design was completely randomized, in a 3x3 factorial arrangement and the means were compared by Tukey test (p<0.05). Meteorological variables,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal ambience; Behavior; Thermal comfort; Weight gain. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300294 |
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| Registros recuperados: 5.225 | |
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