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| Correia,N.M; Camilo,E.H; Santos,E.A. |
| The aim of this study was to assess the capacity of sulfentrazone applied in pre-emergence in controlling Ipomoea hederifolia and Ipomoea quamoclit as a function of the time interval between herbicide application and the occurrence of rain, and the presence of sugarcane straw on the soil surface. Two greenhouse experiments and one field experiment were conducted. For the greenhouse experiments, the study included three doses of sulfentrazone applied by spraying 0, 0.6, and 0.9 kg ha-1, two amounts of straw on the soil (0 and 10 t ha-1), and five time intervals between the application of herbicide and rain simulation (0, 20, 40, 60, and 90 days). In the field experiment, five herbicide treatments (sulfentrazone at 0.6 and 0.9 kg ha-1, sulfentrazone +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Boral®; Raw sugarcane; Morning glory; Herbicide retention; Saccharum officinarum. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100018 |
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| Pinho,A.P.; Matos,A.T.; Morris,L.A.; Costa,L.M.. |
| Adsorption of two herbicides, atrazine and picloram, displaying different sorption characteristics, were evaluated for O (organic) horizon samples collected from SMZs (streamside management zones) in Piedmont (Ultisol) of Georgia, USA. Samples were randomly collected from within 5 SMZs selected for a study of surface flow in field trials. The five SMZs represented five different slope classes, 2, 5, 10, 15 and 20%. Results indicate that 0 horizons have the potential for sorbing atrazine from surface water moving through forested SMZs. Atrazine adsorption was nearly linear over a 24-hour period. Equilibrium adsorption, determined through 24-hour laboratory tests, resulted in a Freundlich coefficient of 67.5 for atrazine. For picloram, negative adsorption... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbicide retention; Litter layer; Sorption; Surface runoff; Solute transport. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582007000100013 |
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| PEREIRA,G.A.M.; BARCELLOS JR.,L.H.; GONÇALVES,V.A.; SILVA,D.V.; FARIA,A.T.; SILVA,A.A.. |
| ABSTRACT Knowledge of herbicides sorption by colloids predicts its movement in the soil profile and its effectiveness in controlling weeds and crops poisoning when directly applied to the soil. This knowledge becomes even more important for herbicides which have long persistence in the soil. In this research, clomazone sorption was estimated by the biological method in Brazilian soil samples with different physical and chemical characteristics, cultivated with sugarcane crops. As an indicator of the presence of clomazone in the soil, Sorghum bicolor was used. The data relating to assessments of poisoning and accumulation of dry matter of the plants were subjected to multivariate analysis of similarity among variables. After that, clomazone doses that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbicide retention; Herbicide behavior in the soil; Pollution potential; Herbicides impact. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200357 |
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| TAKESHITA,V.; MENDES,K.F.; PIMPINATO,R.F.; TORNISIELO,V.L.. |
| ABSTRACT: Materials with high organic carbon content are studied for the removal of herbicides from water, such as activated carbon. Low cost alternatives should be investigated for the substitution of this type of material in the removal of herbicides from water. In this context, the aim of this research was to evaluate four agro-industrial residues (white grape bagasse, corn straw, peanut shell and soybean hull) as adsorbents of diuron and hexazinone in drinking water. Samples of drinking water were collected from sources used for human consumption. Five concentrations (1, 2, 3, 4 and 5 mg mL-1) of each herbicide were added to the potable water samples. Each experimental unit consisted of 10 mL of a solution of water and herbicide with 0.1 g of each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbicide retention; Adsorbents; Water remediation; Environmental risk. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100213 |
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| Correia, Núbia Maria; Universidade Estadual Paulista “Julio de Mesquita Filho”; Gomes, Leonardo José Petean; Universidade Estadual Paulista “Julio de Mesquita Filho”; Perussi, Fábio José; Universidade Estadual Paulista “Julio de Mesquita Filho”. |
| Mechanical sugarcane harvest without burning and continuous straw on the soil surface may affect the Rottboellia exaltata infestation dynamics in sugarcane fields. Three greenhouse experiments were conducted with the aim of studying the effects of sowing depth (0, 2.5, 5, 7.5, and 10 cm), amount of sugarcane straw on the soil surface (0, 5, 10, and 15 ton ha-1), and residual herbicide (clomazone, flumioxazin, imazapyr, isoxaflutole, and s-metolachlor) on the emergence of Rottboellia exaltata. For each experiment, a completely randomized design with four replicates was applied. The combination of mulch on soil surface (especially with larger amounts of straw) with deeper sowing depths provides less emergence and mass accumulation of R. exaltata. In bare... |
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Palavras-chave: 5.01.00.00-9 5.01.03.07-5 itchgrass; Mulch; Herbicide retention; Weed dynamics Matologia itchgrass; Mulch; Herbicide retention; Weed dynamics. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16086 |
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| SILVA,MARCOS R.F. DA; QUEIROZ,MARIA ELIANA L.R. DE; NEVES,ANTÔNIO A.; SILVA,ANTÔNIO A. DA; OLIVEIRA,ANDRÉ F. DE; OLIVEIRA,RENAN L. DE; AZEVEDO,MARIANE M.. |
| Abstract Biochar is a carbonaceous material that has excellent potential as a fertilizer and soil conditioner. However, there is a lack of information concerning the effects of the amount and particle size of this pyrogenic material on the soil sorption capacity. In this work, evaluation was made of changes in clomazone (CMZ) sorption in a Red Latosol following soil conditioning using different percentages (0.25, 0.5, and 1% w/w) of sugarcane biochar in three particle sizes (<106, 106-508, and 508-610 µm). The conditioned soils presented apparent sorption coefficients (Kd) up to 1300 times higher than that of pure soil, besides changes in the behavior of CMZ sorption. The biochar particle size and percentage influenced sorption of the herbicide as well... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apparent sorption coefficient; Batch experiment; External surface area; Factorial design; Freundlich isotherm; Herbicide retention. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703745 |
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