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- ItemAlface americana submetida à adubação nitrogenada e tensões de água no solo em ambiente protegido(Universidade Federal de Mato Grosso, 2013-12-13) Carvalho, Kassio dos Santos; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Guedes Filho, Osvaldo; 051.741.086-93; http://lattes.cnpq.br/9177335062472972; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626Lettuce is a culture demanding in water consumption and the irrigation appropriate management is major, as well as nitrogen fertilization because nitrogen is a nutrient that stimulates plant development. This study aimed to evaluate the effect, isolated and associated soil water tensions and nitrogen levels applied in a Grossense Mato Cerrado of red oxisol with the development of the culture of lettuce under controlled conditions. The experiment was conducted in pots with capacity for 7 dm3 of soil end in greenhouse. The experimental design was completely randomized in a 4x5 factorial design, with 20 treatments (15, 30, 45, and 60 kPa soil water tension and 0, 50, 100, 150 and 200 mg dm-3 nitrogen) and four replications. The nitrogen source used to urea and tensions were controlled by tensiometers installed at 10 cm depth in the experimental units fertilized with 100 mg dm-3 nitrogen. The analyzed variables were: leaves and total aerial parts of green weight, of leaves number, weight dry leaf, total and root, chlorophyll content, of plant height and leaf area. The results were subjected to analysis of variance and when significant regression, both 5% probability. In general, the further development of variable of leaves green weight and total dry mass of leaves, root and total of number leaves and leaf area was observed in the soil water tension of 15 kPa. The biggest plant height and chlorophyll content was checked with application 66.75 and 107.67 mg dm-3 of nitrogen, respectively. The root dry weight decreased with increasing nitrogen fertilization. The chlorophyll content and root dry weight showed interaction between the water tension in the soil and the nitrogen.
- ItemAlgodoeiro fertirrigado por gotejamento sob doses de nitrogênio, lâminas de água e espaçamentos de plantio(Universidade Federal de Mato Grosso, 2015-12-15) Sousa, Jackelinne Valéria Rodrigues; Silva, Tonny José Araújo da; 781.203.064-49; http://lattes.cnpq.br/0651075688988405; Silva, Tonny José Araújo da; 781.203.064-49; http://lattes.cnpq.br/0651075688988405; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626; Guimarães, Salomão Lima; 925.317.505-25; http://lattes.cnpq.br/9250168755115649In Brazil, research on irrigation in cotton are still quite scarce. Thus, the aim of the present study was to evaluate the development and productivity of upland cotton grown in Cerrado Oxisol due to the nitrogen fertilization, irrigation levels and crop spacings. The experiment was conducted under field conditions in the experimental area of the Master's Degree in Agricultural Engineering from the Federal University of Mato Grosso (UFMT/CUR). The experimental design was randomized blocks in Box-Behnken design. This planning is based on experiments with balanced incomplete block containing factors with three levels (low, intermediate, high). The variables were evaluated statistically with analysis of response surface, totaling 15 treatments and 4 replications (blocks). The treatments were: three cultivation spacing (dense – 40 cm, intermediate - 70 cm and conventional - 100 cm), three doses of nitrogen fertilizer fertigation (low dose - 31 kg ha-1, intermediate dose - 171 kg ha-1 and High dose - 310 kg ha-1) and three irrigation levels via drip subsurface (severe - 30% of the demand of ETc, intermediate - 90% and water surplus - 150%).Growing gaps were defined according to current recommendations of the productive system for cotton in Mato Grosso, the treatment of fertigation was based on the recommendation for cotton growing, according to the soil fertility analysis. The irrigation levels were applied with reference to the irrigation levels were applied with reference to the crop evapotranspiration (ETc) calculated from the reference evapotranspiration (ETo) estimated by the Penman-Monteith method (FAO). crop evapotranspiration (ETc) calculated from the reference evapotranspiration (ETo) estimated by the Penman-Monteith method (FAO). Daily surveys were conducted of the growth stage of the plant and Ratings at 45, 75 and 105 days after sowing (DAS) for plant height and SPAD chlorophyll content. After harvest (141 days) were evaluated: number of bolls per plant, boll weight, dry weight of cotton, dry mass of reproductive structure, shoot dry mass, lump in productivity and feather, fiber yield and HVI features (High Volume Instrument). The results were analyzed in response surface through software "SigmaXL® 7.0". There was no significant interaction between irrigation levels, nitrogen levels and growing gaps for plant height and SPAD chlorophyll index at 45 DAS, boll weight, dry weight of boll, dry mass of reproductive structure, fiber yield and characteristics HVI. Nitrogen fertilization increases plant height at 75 and 105 DAS, number of bolls, dry weight of shoot and seed productivity. The SPAD chlorophyll index was positively influenced by the irrigation depth to 75 DAS and also by nitrogen fertilization to 105 DAS. Productivity plume was higher when applied blade 150%. Efficiency in water use showed better results on slide 30%. The maximum yield of cotton seed (2459 kg ha-1) was obtained in 169.2% nitrogen level. For all variables, we obtained better responses in dense and intermediate cultivation. The irrigation management, crop spacing and the nitrogen fertilization provides gains in cotton yield, positively influencing the development of cotton plants grown in Oxisol in the Cerrado.
- ItemCaracterísticas produtivas e nutricionais de gramíneas forrageiras em condições de excesso e déficit hídrico(Universidade Federal de Mato Grosso, 2013-01-12) Kroth, Bruna Elusa; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626The drought and the flooding can cause reduction in the availability and quality of pastures. The objective was to evaluate the development of three cultivars of Brachiaria brizantha under soil water availability. The experiment was conducted in a greenhouse at the University Campus Rondonópolis. The experimental design was completely randomized in a 3x3 factorial with three cultivars brizantha (cv. Marandu, cv. Piatã and cv. Xaraés)and three water availability, being flooded soil (0 kPa), field capacity (10 kPa, control) and drought (50 kPa), 5 replicates. The soil used was Fluvic, being held fertilization with phosphorus and potassium in doses of 250 and 100 mg dm-3, respectively, and applied 200 mg dm-3 nitrogen applications in four installments. Evaluations were performed at 45, 75 and 105 days of treatment installation. The variables studied were plant height, chlorophyll content, number of leaves, dry weight of leaves, stems, shoots and roots, leaf/stem ratio, relative dry mass of shoots and roots, soil pH and concentration nitrogen. The results were submitted to ANOVA and Tukey test at 5% probability by statistical program SISVAR. The Marandu was the most tolerant to flooding, followed by Piatã. The Xaraés proved to be much more sensitive to drought and the flooding. The highest concentration of nitrogen occurred in the treatment of water deficit. The cultivar with the highest nitrogen concentration was the Piatã, however not the deferred Xaraés.
- ItemCultivo de arroz de terras altas submetido à adubação silicatada e tensões de água no solo(Universidade Federal de Mato Grosso, 2014-12-03) Oliveira, Jakeline Rosa de; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626Rice cultivation of upland in Brazil occurs mainly in the Cerrado area, region with adverse weather conditions. Therefore the use of silicon in cultivation becomes important for increasing the crop yield, since it provides regulation of evaporation, improved leaf architecture and a reduction in disease incidence. Thus aimed to evaluate the effect of silicon fertilization and soil water tensions in the cultivation of upland rice in the Cerrado Oxisol. The experiment was conducted in a greenhouse. The soil was collected from an area of Cerrado vegetation. Was used 5x5 factorial fractional design with five tensions water in soil (0, 15, 30, 45 and 60 kPa) and silicon five doses (0, 120, 240, 480 and 960 mg dm-3) which were distributed according to the statistical design of randomized blocks with four replications. Each experimental plot consisted of a pot of 8 dm -3 the one tensiometer installed at a depth of 13 cm. The following characteristics were evaluated: leaf angle, chlorophyll index, plant height, flowering, number of tillers, number of leaves, number of panicle, panicle length, number of grains per panicle, percentage of empty grains, grain weight, dry weight of shoot and root dry mass, concentration and accumulation of silicon. Results were submitted to statistical analysis using the SAS statistical program. Silicon fertilization improved architecture of rice plants with reduced leaf angle and increased chlorophyll content in silicon doses of 785 and 750 mg dm-3, respectively. The 45 kPa water tension promoted reduction in the aerial part dry weight, dry weight of roots, concentration and silicon accumulation in upland rice plants. The increase in water tension in the soil reduced the yield of upland rice grown in culture pot in Cerrado Oxisol.
- ItemCultivo de pimenta biquinho sob lâminas de irrigação e doses de nitrogênio no cerrado mato-grossense(Universidade Federal de Mato Grosso, 2019-02-22) Beltrão, Juliane de Souza; Koetz, Márcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626The cultivation of chilies of the genus Capsicum is an economic activity that allows the producer a good income with small areas. The biquinho pepper (Capsicum chinense) has characteristics that distinguish it from the other peppers of the genus, mainly due to the absence of pungency (picância) in the fruits. However, further studies are needed to identify the ideal techniques for its cultivation in the Cerrado Mato-Grossense region. In this context, the objective of this study was to study the effect of nitrogen doses and irrigation slides by drip irrigation in the cultivation of biquinho pepper in Oxisol. The experiment was carried out in the field, in the experimental area of the Federal University of Mato Grosso, Rondonópolis Campus, in soil classified as dystrophic Red Oxisol. The treatments were composed of five irrigation slides [40, 60, 80, 100 and 120% of ETc demand (crop evapotranspiration)] and five nitrogen doses (0, 60, 120, 180 and 240 kg ha-1 ), having as a source the urea, totaling 25 treatments, making 100 experimental units. The liming was performed with dolomitic limestone to raise the saturation by bases to 80%. The seedlings were produced in polyethylene trays, being transplanted to the field with an average height of 7 cm, at 45 days after sowing. The planting spacing was 0.9 m between rows and 0.5 m between plants, totalizing a stand of 15 plants per experimental unit. During the vegetative development, the number of leaves, plant height, stem diameter, chlorophyll index and crown diameter were evaluated. After harvest, fruit production, fresh and dry fruit mass, number of fruits, fruit diameter and length, average fruit mass, soluble solids, water productivity and water consumption were evaluated. The data were submitted to analysis of variance and when significant, the regression analysis, at 5% significance, and response surface analysis, using software R Statistical 3.4.2®. Nitrogen fertilization showed a significant difference for plant height, number of leaves, stem and canopy diameter, chlorophyll index, fresh and dry mass of fruits, number of fruits and productivity. Irrigation blades provided a significant difference for the variables stem diameter, chlorophyll index and water productivity. The irrigation blades and nitrogen fertilization did not provide significant differences in fruit length and diameter, mean fruit mass and soluble solids content. The Irrigation blades and nitrogen doses provide gains in biquinho pepper productivity, positively influencing its development when grown on Oxisol.
- ItemDesenvolvimento e produção de quinoa sob irrigação e adubação potássica(Universidade Federal de Mato Grosso, 2015-12-16) Rêgo, Vanessa Mendes; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Koetz, Marcio; 892.874.600-00; http://lattes.cnpq.br/8918968565917194; Silva, Edna Maria Bonfim da; 960.432.454-34; http://lattes.cnpq.br/8660058048761423; Teixeira, Marconi Batista; 028.530.536-01; http://lattes.cnpq.br/6394236673481626; Silva, Edson Cabral da; 431.821.191-68; http://lattes.cnpq.br/0721550983809702Quinoa has high nutritional qualities, but conditions of low soil fertility can severely limit production, beyond his performance is hampered by the lack of water. Thus, the objective was to study the effect of irrigation levels and potassium fertilization in the development and production of quinoa in Oxisol. The experiment was conducted in greenhouse, located in UFMT, Campus Rondonopolis-Brazil, by using the soil collected from a Oxisoil Cerrado. The experimental design was a randomized block in a 5x5 factorial, with four replications, corresponding to five potassium rates (0, 100, 200, 400 and 600 mg dm-3 ) and five levels of irrigation (50, 75, 100, 125 and 150% field capacity), The evaluation were beginning from 15 days after seeding (DAS) plants, analyzing leaf area, stem diameter, chlorophyll index, leaf number and plant height and finished the 129 DAS collected dry mass of data shoot and root production and number of grains, mass of 100 grains and water use efficiency. The results had been submitted to the statistics analysis for the SISVAR program, determined it variance analysis and regression testing. There was a significant interaction between potassium and irrigation levels, only for the variable leaf area. The chlorophyll index, stem diameter and number of days for flowering were positively isolated response to potassium fertilization and irrigation levels. The dry matter of shoots and roots were influenced by potassium fertilizer in rates between 530 and 600 mg dm-3 . The irrigation levels and potassium fertilization between 99% to 104% and 350 to 373 mg dm-3 , respectively provide the maximum mass of grain yield and number of grains. The increase in irrigation levels reduces water use efficiency, already the potassium fertilization of 375 mg dm-3 provides maximum efficiency of this variable. Potassium fertilization and irrigation levels influence of isolation for all variables except for the leaf area showed that interaction between them.