Performance of herbicides in sugarcane straw

Araldi, Rosilaine; Velini, Edivaldo Domingues; Gomes, Giovanna Larissa Gimenes Cotrick; Tropaldi, Leandro; Silva, Ilca Puertas de Freitas e; Carbonari, Caio Antônio

doi:10.1590/0103-8478cr20141244

Cited by 19 publications

(10 citation statements)

References 12 publications

(10 reference statements)

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“…Like S-metolachlor, the pendimethalin residual effect in the 2013/14 crop season was less than 30 days. The residual effect could be greater if this herbicide transpose the straw in no-tillage system (Araldi et al, 2015). In our studies, the herbicides were applied above 5.8 ton ha -1 of rye crop residues.…”

Section: Crabgrass Controlmentioning

confidence: 81%

A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean

et al. 2018

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-A 3-year field study was conducted to assess the potential for using pre-emergent (PRE) herbicides tank mixed with glyphosate as a means of controlling weed species in soybean. In 2011/12, 2012/13 and 2013/14 growing sessions soybean cultivar Brasmax Apollo RR was planted under residues of rye. The herbicide treatments glyphosate (gly) (1,296 g a.i. ha -1 ), gly + S-metolachlor (1,296 + 1,920), gly + imazaquin (1,296 +161), gly + pendimethalin (1,296 + 1,000), gly + metribuzin (1,296 + 480), gly + 2.4-D amine (1,296 + 1,209) was applied in pre-emergence (PRE) over rye crop residues two days before soybean sowing. In addition, full season weed-free and weedy control plots were included. Gly + S-metolachlor and gly + pendimethalin reduced the horseweed density from 48 to 3 and 6 plants m -2 , respectively. The mix containing gly + metribuzin and gly + 2.4-D amine and gly applied alone had no effect in the horseweed control. The mix containing gly + metribuzin, gly + 2.4-D amine, gly + imazaquin and gly applied alone had no effect in the crabgrass control. In contrast gly + S-metolachlor and gly + pendimethalin reduced the crabgrass density from 70 to 0 and 1 plant m -2 , respectively. The soybean yield was higher with weed-free, S-metolachlor and metribuzin treatments. The use of an herbicide with residual effect had impact on weed management and soybean yield. In conclusion, a greater control of horseweed and crabgrass occurred when S-metolachlor or pendimethalin was applied PRE.Keywords: Glycine max; 2.4-D; metribuzin; S-metolachlor; Conyza spp. 2011/12, 2012/13 e 2013/14, o RESUMO -Um estudo de campo de três safras foi conduzido para avaliar o potencial de uso de herbicidas pré-emergentes misturados com glyphosate como meio de controlar as espécies de plantas daninhas na cultura da soja. Nas safras

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Section: Crabgrass Controlmentioning

confidence: 81%

A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean

et al. 2018

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“…This indicates that the presence of straw on the soil surface hardly interferes in herbicide retention consequently leading to weed control availability in low rainfall conditions. For other acidic herbicides, such as metribuzin and hexazinone, only 13 and 18 mm of rain were required, respectively, to leach 90% of the products, even in the presence of 10 t/ha of sugar cane straw (Araldi et al ., 2015). Both aforementioned studies indicate the need for adaptation of management strategies according to season, as acid herbicides such as aminocyclopyrachlor tend to be more available for leaching even during drier periods.…”

Section: Discussionmentioning

confidence: 99%

Aminocyclopyrachlor sorption–desorption and leaching in soil amended with organic materials from sugar cane cultivation

et al. 2020

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The correct application of a new herbicide depends on knowledge concerning its behaviour within the cultivation system. The objective of this study was to evaluate the sorption–desorption process of aminocyclopyrachlor in soils with the addition of three aged organic materials from sugar cane and their transport via leaching. Sugar cane straw (12 t/ha), filter cake (90 t/ha) and vinasse (200 m3/ha) were added to a clayey soil 15, 30 and 60 days before herbicide application. Sorption and desorption were evaluated by the batch equilibrium method. For leaching assessments, the materials were applied to the soil surface. Sorption was relatively low in all treatments (Kd = 0.17–0.41 L/kg), although significantly higher in soil without organic material addition. A negative correlation between herbicide sorption and increased soil base saturation was observed, indicating competition for sorption sites. With the addition of vinasse, 71% of the herbicide reached the leachate, while <50% reached the leachate in the other treatments. Aminocyclopyrachlor availability was not reduced with organic material addition to the soil, which may be favourable for weed control. However, the presence of vinasse leads to the risk of leaching to deeper soil layers than the seed bank.

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“…Previous laboratory and field studies on Brazilian soils evaluated the patterns of ATZ dissipation (Aquino et al, 2013;Correia et al, 2007) while others considered the role of straw (covering or mixed into the soil (Amadori et al, 2016;Araldi et al, 2015;Silva et al, 2016) or the extent of enhanced ATZ degradation (Bonfleur et al, 2010;Martinazzo et al, 2010). Nevertheless, a simultaneous study of ATZ degradation patterns with radiolabeled herbicide, focusing on the role of the straw cover simulating a no-tillage system has not so far been reported for Brazilian agricultural soils.…”

Section: Introductionmentioning

confidence: 99%

Atrazine degradation patterns: the role of straw cover and herbicide application history

Leal

Dick

Stahl

et al. 2019

Sci. agric. (Piracicaba, Braz.)

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In Brazil, atrazine (ATZ) is widely applied to maize (Zea mays L.) fields for weed control. The presence of ATZ and its metabolites in soil and water matrices has become a matter of some concern for governmental authorities as well as for society at large. This study evaluated the patterns of ATZ degradation (mineralization, extractable and non-extractable ATZ residues, and metabolite formation) in a Brazilian Typic Paleudult. Soil samples from a cultivated area under a no-tillage system with a history of ATZ application were incubated with 14 C-ATZ in both the presence and absence of straw cover on the soil surface, and the evolved 14 CO 2 was determined by liquid scintillation. Samples from an area with native vegetation, adjacent to the cultivated area, were also incubated as a control. A higher mineralization of ATZ was observed in the cultivated soil (> 85 %) in comparison with the native soil (10 %) after 85 days of incubation. In addition to the higher mineralization and hydroxyatrazine (HA) formation, a rapid decrease in the water-extractable residues was observed in the cultivated soil. When the cultivated soil was covered with straw, mineralization was reduced by up to 30 % although a small amount of remobilization to the soil occurred within the 85 days. Straw cover hindered the degradation of ATZ in cultivated soils; whereas an accelerated biodegradation was due to repeated applications of ATZ, which may have selected microbiota more skilled at biodegrading the herbicide.

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Performance of herbicides in sugarcane straw

Abstract: ABSTRACT

Cited by 19 publications

References 12 publications

A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean

A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean

Aminocyclopyrachlor sorption–desorption and leaching in soil amended with organic materials from sugar cane cultivation

Atrazine degradation patterns: the role of straw cover and herbicide application history

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