ICAT UFMT

Rondonópolis, Brazil

ICAT UFMT

Rondonópolis, Brazil

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Cabral C.E.A.,FAMEV UFMT | Bonfim-Silva E.M.,ICAT UFMT | Bonelli E.A.,FAMEV UFMT | da Silva T.J.A.,ICAT UFMT | And 2 more authors.
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

The primary macronutrients have an important role in the forage fertilization, depending on their contribution to the production cost. This paper aimed to evaluate the effects of soil compaction on the concentration of primary macronutrients present in diagnostic leaves of Piatã and Mombaça grasses. The experiment was conducted in a greenhouse with a randomized statistical design, consisting of eight treatments and three replications in 2 × 4, factorial scheme, with two grases (Piatã grass and Mombaça) and four soil densities (1.0, 1.2, 1.4 and 1.6 Mg m-3). Two harvest of shoots were made, the first 42 days after the plant thinning, and the second 46 days after the first cutting. In the first growing period, the soil compaction interfere with the absorption of nitrogen and phosphorus, while in the second growing period there is a limitation in the absorption of nitrogen and potassium. Nitrogen is the primary macronutrient most limited by soil compaction.


Bonelli E.A.,Mestrando FAMEV UFMT | Bonfim-Silva E.M.,ICAT UFMT | Cabral C.E.A.,Mestrando FAMEV UFMT | Campos J.J.,Mestrando FAMEV UFMT | Polizel A.C.,ICAT UFMT
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2011

The grasses of the genera Brachiaria and Panicum have significant participation in the grasslands of the Cerrado region, but few studies relate their behavior in conditions of soil compaction. The objective was to evaluate the development of grasses Brachiaria brizantha v. Piatã and Panicum maximum v. Mombaça in increasing levels of soil compaction. The experiment was carried out in a greenhouse at Federal University of Mato Grosso. The experimental design was completely randomized with 8 treatments and 3 replications, arranged in a factorial design involving two grasses and four compaction levels, 1.0, 1.2,1.4 and 1.6 Mg m -3. Two cultings were made and the evaluated variables were: number of tillers NT), drymatter of leaf blade (DMLB), dry matter of stem (DMS), drymatter of root (DMR), leaf/stem ratio (DMLB/DMS); dry matter of shoot (DMSH) and the DMSH/DMR ratio. The levels of soil compaction did not influence the production of grass Piatã in two growth periods.The Mombaça grass showed a reduction in production due to soil compaction in the second growth cycle.


Barbosa E.A.A.,University of Campinas | Arruda F.B.,IAC APTA SAA | Pires R.C.M.,IAC APTA SAA | da Silva T.J.A.,ICAT UFMT | Sakai E.,IAC APTA SAA
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2013

The objective of this study was evaluate the effect of irrigation and fertigation with mineral fertilizer and vinasse applied by subsurface drip irrigation, in the number of tiller, stem yield, technological quality of sugarcane and yield of recoverable sugar in first three cycles of ratoon cane. The treatments were: T1NI - cultivation without irrigation with mineral fertilization; T2I - cultivation fertigated with mineral fertilizers; T3Iv - cultivation fertigated with the vinasse supplying K and complementation of NP with mineral fertilizer; T4IV - cultivation fertigated with the vinasse supplying NPK. In the cycle of the first ratoon cane, there was no effect of treatments on the variables, already in the subsequent cycles, the T2I and T3Iv showed higher numbers of tillers, 17.4 and 17.2 tiller m-1, in the second ratoon cane and 16.6 and 16.0 tiller m-1 in the third ratoon cane, respectively. The stem yield was amended with the T4IV obtaining the higher yield, 179.6 Mg ha-1, in the second ratoon cane, and the T2I and T3Iv in the third ratoon cane, 151.5 and 151.0 Mg ha-1, respectively. There was no treatment effect on the technological quality and in the second ratoon cane the T3Iv and T4IV showed higher yield of sugar, 25 and 25.9 Mg ha-1, respectively.


Barbosa E.A.A.,University of Campinas | Arruda F.B.,IAC APTA SAA | Pires R.C.M.,IAC APTA SAA | da Silva T.J.A.,ICAT UFMT | Sakai E.,IAC APTA SAA
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

This study aimed to evaluate the effect of subsurface drip irrigation and the application of stillage and nutrients in some agronomic parameters, stem yield, technological characteristics of sugarcane and yield of theoretical recoverable sugar. The experiment was carried out in completely randomized block design with four treatments and five replications. The treatments were: mineral fertilizers without irrigation; irrigation and fertigation with NPK using mineral fertilizers; irrigation and fertigation with stillage supplying the K and complementation of N and P with mineral fertilizers; and irrigation and fertigation with stillage supplying the NK and complementation of P with mineral fertilizer. The system of irrigation adopted was the subsurface drip irrigation. The irrigated treatments showed higher number of tillers and leaf área index, when compared to rainfed cultivation. The fertigation with stillage supplying the K promoted higher Brix and stem yield when compared to non-irrigated cultivation. The irrigation and fertigation with stillage supplying the NK promoted higher yield of theoretical recoverable sugar, when compared the cultivation without irrigation.


Vilarinho M.K.C.,Mato Grosso State University | da Silva T.J.A.,Federal University of Mato Grosso | Caneppele C.,Medicina Veterinaria UFMT | Rozado A.F.,ICAT UFMT
Bioscience Journal | Year: 2016

Sitophilus species are major pests of stored grain and their control is achieved mainly with the use of chemical insecticides, but the indiscriminate use of these products is resulting in several undesirable factors to man and to the environment. Thus, the use of natural insecticides comes as an option to control the insects, while lessening risks to the environment. The study was conducted at the Institute of Agricultural Sciences and Technologies, Rondonópolis campus of the Federal University of Mato Grosso, in the period from March to September 2012. The experiment was conducted under three different storing conditions. Aqueous extracts were obtained by the addition of Allium sativum L, Azadirachta indica A. Juss. and Cymbopogon winterianum Jowitt vegetable powders in distilled water, at a ratio of 5 g per 100 ml, and the levels of chemical insecticides were of 0.04 and 0.15 ml/100 ml of water for deltamethrin and chlorpyrifos, respectively. Treatments were added to the corn grains, which were placed in a 2.5 L glass container, mixed by manual shaking and infested with 20 adults of unsexed Sitophilus zeamais. Grains were stored for 60 days. At 30 and 60 days, the following items were analyzed: bugs count, water content in grains and electrical conductivity. The data were submitted to analysis of variance, and means were compared by Tukey test at 5% probability. At 30 days, the efficiency of chemical insecticides in the control of Sitophilus zeamais was observed in the three storage environments. Vegetal extracts were not effective in controlling insects. The larger number of insects increased the electrical conductivity and humidity values in the grains. © 2016, Universidade Federal de Uberlandia. All rights reserved.


Cabral C.E.A.,Federal University of Mato Grosso | de abreu J.G.,DZER | Bonfim-Silva E.M.,ICAT UFMT | Cabral C.H.A.,ICAT UFMT | And 2 more authors.
Bioscience Journal | Year: 2013

This study aimed evaluate production efficiency, nitrogen concentration and its correlation with SPAD reading in palisadegrass, signalgrass and convertgrass submitted nitrogen fertilization. The experiment was made in greenhouse at the Universidade Federal do Mato Grosso, campus Rondonopolis. The experimental design was completely randomized design with 15 treatments and four replications, arranged in a 3x5 factorial design, with three grasses and five nitrogen doses. The species forages were palisadegrass (Brachiaria brizantha cv. Marandu) signalgrass (Brachiaria decumbens cv. Basilisk) and convertgrass (Brachiaria hibrida cv. Mulato II) subjected to nitrogen levels of 0, 100, 200; 300 and 400 mg dm-3. Each plot consisted pots of a 5 dm3with five plants. Three cuts are made at intervals of 30 days. Were evaluated nitrogen concentration, shoots nitrogen efficiency production and SPAD reading. The highest nitrogen concentration in shoot occurs in grasses Marandu and Convert. There is more efficient use of nitrogen for the shoots production in signalgrass and convertgrass. The SPAD reading has a positive correlation with nitrogen concentration in palisadegrass and convertgrass. © 2013 Universidade Federal de Uberlandia. All rights reserved.


Pietro-Souza W.,ICAT UFMT | Bonfim-Silva E.M.,ICAT UFMT | Schlichting A.F.,ICAT UFMT | Silva M.C.,ICAT UFMT
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2013

The soil conditions, climate, topography and adapted varieties have favored the cultivation of wheat in the 'Cerrado'. However, regarding the nitrogen fertilization, it is considered the main factor for increasing production. The objective of this study was to evaluate the initial development and dry mass production of wheat plants cv. Guamirim fertilized with nitrogen in the 'Cerrado' Oxisol. The experiment was carried out in a greenhouse at the University of Mato Grosso - Campus of Rondonópolis, in recipients of 5 dm3. The experimental design was completely randomized with six levels of nitrogen (0, 80, 160, 240, 320 and 400 mg dm-3), five replications with five plants per pot. The evaluation periods were: 26, 33, 40 and 47 days after emergence, where the number of leaves and tillers, plant height, dry mass of shoots and roots were determined. Nitrogen fertilization affected the wheat plant development for all evaluated periods. The best responses of wheat to nitrogen fertilization occurred at doses ranging from 80 to 195.6 mg dm-3.


Farias L.N.,ICAT UFMT | Bonfim-Silva E.M.,ICAT UFMT | Pietro-Souza W.,ICAT UFMT | Vilarinho M.K.C.,ICAT UFMT | And 2 more authors.
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2013

Inadequate management along with the indiscriminate use of agricultural machinery alter the soil natural density, causing reduction in the physical quality and, as a result, implies negative effects onto the development of plantations. Thus, this paper aimed to evaluate the influence of soil compaction in the morphological and productive characteristics of the dwarf pigeonpea (Cajanus cajan L. Mill sp.) cv. IAPAR 43 Aratã. The experiment was carried out in the greenhouse at Mato Grosso Federal University (UFMT) - Rondonópolis University Campus. Dark Oxisol collected in 0-20 cm depth was used. The treatments followed five levels of soil compaction (soil density 1.0; 1.2; 1.4; 1.6 and 1.8 Mg m-3) and six repetitions under completely randomized experimental design. The evaluations were carried out between 33 to 63 days after the emergence of the plants, when the amount of branches, amount of leaves, plant height, diameter of the stem, dry mass of leaves, culms, plant canopy and root were determined. The morphological and productive characteristics of the dwarf pigeonpea showed restrictions regarding the soil compaction levels where it was little effective in the Oxisol descompaction.


Silva M.C.,ICAT UFMT | da Silva T.J.A.,ICAT UFMT | Bonfim-Silva E.M.,ICAT UFMT | Farias L.N.,ICAT UFMT
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2014

Melon is one of Brazil's most exported fresh fruit and area under this crop is increasingly acreage in the state of Mato Grosso. Due to its association with quantitative and qualitative aspects of the fruit, nitrogen and potassium fertilization is a prominent factor in the production of melon plant. The objective of this study is to evaluate qualitative and productive characteristics of the net melon fruits, cultivated in a greenhouse, based on doses of nitrogen and potassium. The study was conducted from April to August 2012 in randomized block design, in a 5 × 5 factorial design with four replications. Nitrogen doses were 0, 40, 80, 120 and 160 mg dm-3 while potassium doses corresponded to: 0; 80; 160; 240 and 320 mg dm-3. The cultivated melon was cantaloupe type, hybrid Rafael. The evaluated characteristics were overall productivity, pulp thickness, total soluble solids content and titratable acidity. The nitrogen promoted an increase in productivity and fruit quality in a linear way and the potassium doses that promoted the best results was situated in the range of 240 to 263.4 mg dm-3, responding quadratically to the studied variables.


Fagundes E.A.A.,ICAT UFMT | da Silva T.J.A.,ICAT UFMT | Bonfim-Silva E.M.,ICAT UFMT
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2014

The objective of this study was to evaluate the initial development of three varieties of sugarcane (RB002504, RB867515 and RB931011) in five levels of soil density (1.0; 1.2; 1.4; 1.6 and 1.8 Mg m-3). The study was conducted in a greenhouse at the Federal University of Mato Grosso, Campus of Rondonópolis in randomized block design consisting of 3 × 5 factorial scheme corresponding to 3 varieties of sugarcane and 5 levels of soil compaction and four replications. The evaluated variables were number of tillers, number of leaves, leaf area, dry mass of leaf and stem, stem length and plant height. The data were submitted to F test at 0.05 of probability and for comparison of means by the Tukey test for varieties and polynomial regression for densities. The variety RB002504 showed good tillering, but not good development of stems. The variety RB867515 showed good development of leaf area showing good adaptation to the studied soil while variety RB931011 stood out in stem development.

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