PPGEA

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Agora exibindo 1 - 9 de 9

Aprendizado profundo aplicado na pulverização seletiva em tempo real para controle de Ipomoea spp.
(Universidade Federal de Mato Grosso, 2020-07-21) Sabóia, Hederson de Souza; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mamiya, Arthur Akira; 036.798.601-96; http://lattes.cnpq.br/5006163362115559; Cunha, Joao Paulo Arantes Rodrigues da; 770.850.001-04; http://lattes.cnpq.br/2050122023035025; Resmini, Roger; 024.858.979-21; http://lattes.cnpq.br/9564155797807373
The culture of soybean and cotton have great importance in the Brazilian economic scenario, both are commodities that move billions of reais per year in exports. The importance is demonstrated in the increased in planted areas and production year after year, keeping the country between the world ́s largest producers of crops. The weed management are of paramount importance, to achieve greater productivity year after year. However, due to the incorrect use of controls, mainly of herbicides, it has been causing resistance of some biotypes to the most popular active ingredients. Among the plants that have been representing resistance/ tolerance are those of the genus Ipomoea spp., most popularly known as Morning Glory. These plants affect soybean and cotton crops throughout their cycle, affecting their productivity. In this context, the object of this work was to evaluate the implementation of two object detection algorithms in real time (Faster R-CNN and YOLOv3), and to develop an embedded system for selective spraying of herbicides. Morning Glory plants in crops soybean and cotton, in the Cerrado Matogrossense. The project was developed at the Agricultural machinery laboratory of the Federal University of Mato Grosso, campus of Rondonopolis. The algorithms were trained to detect three classes (Soybean, Morning Glory and cotton) and evaluated in terms of precision and recall in the laboratory and field. The laboratory results of the Faster R-CNN algorithm showed results with an average accuracy of 87.20% and recall 77.20%, while the YOLOv3 tiny showed 81.16% accuracy and recall 68.00%. In the field tests, Faster R-CNN showed better results in comparison to YOLOv3 tiny in both modules analyzed, showing weed control average of 81.70% in cotton and 77.00% in soybean. The YOLOv3 tiny did not present satisfactory results in the field, presenting results less than 21.00% in the control of Morning Glory, present in the modules. The spray precision results of the Faster R-CNN demonstrate that object detection algorithms in real time for the selective control of post-emergent Morning Glory weeds in soybean and cotton crops.
Construção de um veículo autônomo para aplicação de produtos fitossanitário
(Universidade Federal de Mato Grosso, 2017-03-10) Rezende, Pablo Franco de; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Silva, Francine Damian da; 009.510.500-01; http://lattes.cnpq.br/9838212017844050; Silva, Tonny José Araújo da; 781.203.064-49; http://lattes.cnpq.br/0651075688988405
The competition between cultures of agricultural interest and invasive plants is a problem that lasts several years, therefore, the industries of agricultural pesticides are the most benefit from this gap in agriculture. But the effects of these pesticides are not yet fully known. Based on this, the goals of this work are to build and evaluate an unmanned ground vehicle, spraying system with fractioned dose; study of photoelectric optical sensor use HC-SR501 PIR, real-time detection of invasive plants in two different surfaces (surface red Latosol, light surface), with five different infestation indices for both; develop a computational program in C language for a lowcost electronics that scan the information captured by the sensor and reverse flow control. Construction and study were conducted at the Federal University of Mato Grosso, câmpus of Rondonópolis, the evaluations were carried out in the experimental area of Agricultural and environmental engineering course, on various conditions (temperature, relative humidity and dust), the split spray system work properly the activity to which it was designed; the VTA proved to be a suitable structure to the study of sensors; the HC-SR501 sensor PIR detected the infrared reflectance of different leaf areas which was submitted, but without reliable results, being the clear surface presented more sense failure.
Desempenho operacional de uma colhedora de algodão e a variabilidade espacial da qualidade da fibra antes e após a colheita
(Universidade Federal de Mato Grosso, 2017-03-10) Crisostomo, William Lima; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Silva, Francine Damian da; 009.510.500-01; http://lattes.cnpq.br/9838212017844050
Cotton is the most important natural source of fiber in the world, with the largest volume of world production, besides being the largest source of raw materials of the textile industry, still provides as the grains by-products that are rich in oils and residues are protein-rich employees mostly in animal feed. Cotton production in Brazilhas expanded in the State of Mato Grosso, where growers have found large tracts of land and favorable conditions for the development of culture, resulting in the rapid growth of the area produced. The State of Mato Grosso is responsible for the whole fibre produced in Brazil 68% of this fibre is produced in Mato Grosso, giving it a leading position worldwide. The characterization of the quality of the fibre produced in commercial plot is important to determine the qualitative variations within a single site enabling the farmer to search for areas that allow the less variability of fiber quality, enabling the adoption of actions that raise the homogeneity of the plot producing higher quality fibersthat offer better remuneration to the producer at the time of sale. The best quality of fiber is set at the moment the ball opens at the end of the cropcycle, the actions taken post harvest should be made properly to prepare these fibers for industrialization, while must preserve the original characteristics of the fiber.While the fiber remains in the field she becomes sensitive to environmental factors that are detrimental to their quality characteristics. To be avoided these potential damage the harvest should be done in short period of time, making it important to the determination of a suitable machines depending on the amount of area to be harvested, in typical conditions of cultivation in Mato Grosso, obtained 60% collection efficiency and operational efficiency of approximately 67.2%. After harvesting andprocessing, spatial variability of fiber quality is completely mischaracterized, mostly by homogenization arising out of the operation mode of the harvester and the waythe processing occurs. When the equipment used in processing are appropriately regulated cannot detect significant changes of qualitative characteristics of the fibers.
Eficiência da colheita mecanizada do algodão em diferentes épocas e aplicação de desfolhantes
(Universidade Federal de Mato Grosso, 2014-11-28) Bassini, Renato Tillmann; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Polizel, Analy Castilho; 038.896.476-69; http://lattes.cnpq.br/0565510253501855; Salvador, Nilson; 213.562.706-20; http://lattes.cnpq.br/3871065756980120
Losses are influenced by several factors, among which stand out the plant height, harvest speed, adjustment of harvester amount of plants and bolls per square meter, number of open bolls, humidity during harvest and other factors, which which contribute to losses in the order of 6% to 12%. The objective of this study was to evaluate the efficiency of mechanical harvesting at different times of application of defoliants in the culture of conventional cotton variety FM 975 WS. Was used to harvest the harvester John Deere brand, model 7660 (PRO 16). The experiments were performed on the CÉU AZUL farm, located in Pedra Preta, state of Mato Grosso, during the agricultural year 2012/2013. Two distinct experimental design were determined, the first one, was realized the application of defoliant with 80% of the apples open, we used the randomized complete block design with a 2x3 layout and the second one, with the application of defoliant with 90% of the open apples, we used the randomized complete block design with a range 3x3 layout . Results were subjected to analysis of variance at 5% probability by statistical program ASSISTAT and compare using the confidence interval of the mean of 95% (α = 0.05). The evaluations were conducted in experimental plots of 5m, which was quantified, temperature, relative humidity, moisture cotton, total plant height, height of the first boll, number of plants per square meter and the number of bolls per plant, and determining percentage of total production, the losses on the ground pre-harvest losses in post-harvest ground, air post-harvest losses and losses in post-harvest ground. Cotton Moisture, total plant height, the number of days elapsed after the application of defoliant have demonstrated influences on losses in combine harvesting.
Projeto e construção de um veículo terrestre autônomo para uso na agricultura
(Universidade Federal de Mato Grosso, 2018-07-23) Godoy, Edson; Villiotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Santos, Heinsten Frederich Leal dos; 213.386.748-11; http://lattes.cnpq.br/7431674954926317; Venzon, Marcio; 007.858.849-98; http://lattes.cnpq.br/2300724138455419; Duarte, Thiago Franco; 011.291.431.47; http://lattes.cnpq.br/7076042826792327
Mobile robots have been studied over the years for most varied application areas, from home appliances to aerospace applications as Mars Rover. Because of their simplicity, has been used for several types of studies as basis for control strategies and computer vision in a wide range of areas. In this dissertation was approached the mechanical construction of a mobile robot for application in the agricultural engineering, with its own application characteristics. At the end of the work, a structure with a variable width, robust and low cost was developed, allowing its use in several types of culture for development and production purposes, with a directional and traction module that could be applied in other types of robots or autonomous vehicles. The drive and control circuits for the module motors have also been developed. The vehicle should be used for more advanced studies in the area of control, computer vision and artificial intelligence.
Qualidade da fibra de algodão adensado submetido a sistemas de colheita mecânica
(Universidade Federal de Mato Grosso, 2015-12-10) Aguero, Nayra Fernandes; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Viliotti, Carlos Alberto; 081.862.308-07; http://lattes.cnpq.br/1680184849424627; Bélot, Jean-Louis René; 913.187.859-87; http://lattes.cnpq.br/7310817909126433
The cultivation of cotton in the Cerrado, in large areas, was possible by high investment and technology, particularly in mechanized harvesting, making the business viable. However, the use of harvester causes qualitative and quantitative losses of the final product, reducing the profitability of production. Aimed to evaluate the fiber characteristics of narrow row cotton using crop platforms picker-12 VRS and stripper. The experiment was conducted in two farms of in the municipalities of Sorriso and Campo Verde - MT in crop years 2014 and 2015, respectively. The experimental design was randomized blocks with seven replicates in the first year and six in the second year. The treatments consisted of five harvesting systems in Sorriso (2014): picker-12 VRS, finger stripper with HL extractor, finger stripper without extractor HL, brush stripper with extractor HL and brush stripper without extractor HL. In the municipality of Campo Verde (2015) were four treatments: picker12 VRS, brush stripper with HL extractor, brush stripper without extractor HL and manually harvest. The efficiency of the harvester was quantified by determining the yield and total loss. It was quantified impurities cotton by determining the percentage of bark and stem present in the sample. The following technological fiber characteristics were analyzed through the HVI tool: Area - item percentage shot that is not cotton; UHM - length (mm); SFC - short fiber index (%) Elg - elongation; Mic - micronaire index; +b - degree of yellowing; Rd - degree of reflection (%); LUI - length uniformity index (%); STR - strength (gf tex-1 ). The results were submitted to analysis of variance by F test, and when significant, Tukey's test at 5% probability. The cotton management in dense system has a significantly lower amount of trash when harvested with the harvester picker-12 VRS. The extractors HL stripper harvesters brush and comb provide cotton to a lesser lump amount of stem and bark. The picker-12 VRS VRS harvester failed to show that preserved the intrinsic quality of the fiber
Resistência à força de compressão e análise de raio X das sementes de algodão
(Universidade Federal de Mato Grosso, 2019-02-26) Martins, Myllena Teixeira; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Alves, Niédja Marizze Cezar; 010.043.454-10; http://lattes.cnpq.br/9661006374047977; Oliveira, Hilton Morbeck de; 142.212.171-20; http://lattes.cnpq.br/8365693598806255; Nascimento, Kelly Juliane Telles; 991.419.811-20; http://lattes.cnpq.br/8307885141367986
Cotton is one of the main growing crops in Brazil and in the world, so we continually seek to increase productivity and improve fiber quality. The parameters of fiber quality are affected by the presence of contaminants, especially the seed coat fragments (SCF) that cause great problems in the textile industry during the spinning and dyeing of the fabric. SCFs are parts of seed coatings that have been broken off from the surface of mature or immature seeds during mechanical processing. There are few studies that indicate the possible causes of the origin of these contaminants, being it can be genetic or due to the mechanical processes. The objective of this study was to correlate the compression force with the x-ray analyzes of cotton seeds. The cotton varieties used were: FM 940 GLT, IMA 7201 B2RF, IMA 6501 B2RF, TMG 47 B2RF, IMA 2140, IMA 2129, IMA 7501 WS, and FM 975 WS. The compression test was carried out in the electrotechnical laboratory of the Federal University of Rondonópolis, with the aid of a universal testing machine. For this, each sample remained for 7 days inside a BOD with relative humidity at 65% ± 2 and temperature at 20 ° C ± 1. During the compression test, the seeds were placed horizontally between parallel plates and each seed was analyzed individually. The force and strain data were obtained through the break point of the curve formed during the test. Then, radiographic images of the cotton seeds were produced by the X-ray equipment LX-60 of the Faxitron X-Ray Corporation in the Laboratory of Seed Analysis of the Federal Goiano-Rio Verde Institute. Afterwards, the images were analyzed in the Tomato Analyzer and ImageJ software to verify the free space between the integument and the area containing the embryonic and cotyledon axis and to measure the thickness of the integument, respectively. The experimental design was completely random, with eight treatments and four replicates of 25 seeds, totaling 32 plots. The results were submitted to analysis of variance, and the means comparison was done by the Scott-Knott test at 5% of probability using the SISVAR program and finally the Pearson correlation was applied between the analyzed variables. It was concluded that there was a positive correlation between the rupture force and the thickness of the seed coat and between the density and the free area inside the seeds. Thus, seeds with thicker tegument are more resistant to fragmentation and the density is associated with the quality and volume of the seeds and consequently with their internal filling that is determined according to the degree of development of the embryonic axis and cotyledon.
Semeadura cruzada de soja em sistemas de manejo do solo
(Universidade Federal de Mato Grosso, 2013-07-02) Menezes, Patricia Candida de; Polizel, Analy Castilho; 038.896.476-69; http://lattes.cnpq.br/0565510253501855; Polizel, Analy Castilho; 038.896.476-69; http://lattes.cnpq.br/0565510253501855; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Silva, Antonio Renan Berchol da; 170.646.448-78; http://lattes.cnpq.br/2333811641463586
The challenge is to increase agricultural production while avoiding the opening of new areas. An alternative is to increase productivity through research and development of new technologies. The spatial arrangement of plants promoted by sowing crossed of soybeans may contribute to this increase. Given the above, we sought to evaluate the performance of soybean sown of crossed shape in tillage systems. The experimental design was a split plot, with the corresponding portions of the systems of tillage and subplots to sowing soybeans types. Each treatment had six replicates. The tillage systems were: conventional tillage, reduced tillage and no-tillage. The soybean sowing was carried out in a conventional manner, with parallel lines, and so crossed, where the sower went twice in the same area in perpendicular directions. The cultivar TMG 123 RR. Evaluations consisted in checking the severity of the rust, agronomic characteristics and operational performance of machines . The lower severity of rust was observed in the no-tillage and conventional tillage with conventional sowing. The sowing crossed of soybeans had higher plant height at flowering, maturation and first pod, grain yield in no-tillage system and demanded higher fuel consumption and energy demand.
Sistemas de semeadura e manejo do solo no desenvolvimento da cultura da soja
(Universidade Federal de Mato Grosso, 2013-12-11) Ormond, Antonio Tassio Santana; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Polizel, Analy Castilho; 038.896.476-69; http://lattes.cnpq.br/0565510253501855; Polizel, Analy Castilho; 038.896.476-69; http://lattes.cnpq.br/0565510253501855; Mion, Renildo Luiz; 034.525.757-05; http://lattes.cnpq.br/8030830142710133; Guimarães, Geovane Lima; 684.690.805-63; http://lattes.cnpq.br/6882737457949719
The manipulation the line spacing and plant density, aims to establish the most adequate arrangement to obtain greater productivity and adaptation to mechanized harvest. The present study aimed to evaluate the agronomic characteristics, and the operational performance of agricultural machines in the different systems soil tillage systems and soybean sowing. The experiment was conducted in field conditions in OXISOL. It was used three systems soil tillage (conventional tillage, reduced and no-tillage) and three sowing systems for soybean (conventional sowing, cross-sowing and dense sowing). The parameters evaluated were: Severity and number of pustules cm-2 of Asian rust, number of days to maturity, plant height at flowering maturation and insertion of first pod; plant population, grain yield; weight of 100 grains; chlorophyll index, stomatal density and bulk density; energetic demand of agricultural machinery. After the statistical analysis it was verified that the variables: plant height at flowering, plant population and grain yield obtained the highest performance using reduced tillage with dense sowing system. For variables insertion heights of first pod, stomatal density and number of pustule cm-2 the satisfactory results were observed with the interaction of reduced tillage of soil x cross sowing. For the severity of Asian rust and plant height at maturity interaction tillage x dense sowing showed the best results. The no-tillage system obtained the lowest energy demand and lower fuel consumption.

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