Interação de imazapic no sistema integrado palha de cana-de-açúcar, herbicida e vinhaça no crescimento inicial da tiririca

Novo, Maria do Carmo de Salvo Soares; Filho, Ricardo Victória; Langbeck, F. M.; Lago, Antônio Augusto do; Deuber, R.; Rolim, Gustavo Sattolo

doi:10.1590/s0100-83582008000200021

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Tuber viability and height of purple nutsedge plants were reduced when using the herbicide imazapic (122.5 g ai•ha −1 ) compared to the control (NOVO et al, 2008b). In the present study, imazapic reduced the number of epigeal manifestations, number of tubers and bulbs, weight of tubers + bulbs, shoot dry matter, and tuber viability.…”

Section: Discussionsupporting

confidence: 46%

Viability of Cyperus rotundus L. tubers after application of herbicide in pre- and postemergence

Giraldeli

Silva²,

Brito

et al. 2020

Arq. Inst. Biol.

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Chemical management is the most widely adopted technique to control weeds in sugarcane crops. Purple nutsedge (Cyperus rotundus L.) is among the most difficult species to control. Herbicides need to be absorbed and translocated in a sufficient amount for the tuber chain to be effective. Thus, this study aimed to evaluate the effectiveness of the herbicides sulfentrazone, diclosulam, imazapic, imazapyr, halosulfuron, ethoxysulfuron, monosodium methyl arsenate (MSMA), and 2,4-dichlorophenoxyacetic acid (2,4-D) in controlling C. rotundus and reducing the viability of its tubers. The experiment was carried out in a greenhouse in a completely randomized design, with nine treatments and four replications. The herbicides sulfentrazone (800 g active ingredient – ai·ha?1), diclosulam (193.17 g ai·ha?1), imazapic (133 g ai·ha?1), and imazapyr (500 g acid equivalent – ae·ha?1) were applied in preemergence at five days after planting the tubers, while halosulfuron (112.5 g ai·ha?1), ethoxysulfuron (135 g ai·ha?1), MSMA (1,975 g ai·ha?1), and 2,4-D (1,340 g ae·ha?1) were applied in postemergence (4 to 5 leaves). The parameters visual control, shoot dry matter, number of tubers and bulbs, weight of tubers + bulbs, number of epigeal manifestations, and tuber viability were analyzed. The herbicides diclosulam, halosulfuron, and ethoxysulfuron provided 100% control of the shoot at 90 days after application (DAA). All herbicides reduced the number of bulbs, weight of tubers + bulbs, and shoot dry matter. The herbicides sulfentrazone, imazapic, halosulfuron, ethoxysulfuron, and MSMA provided the highest reduction in tuber viability.

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Section: Discussionsupporting

confidence: 46%

Viability of Cyperus rotundus L. tubers after application of herbicide in pre- and postemergence

Giraldeli

Silva²,

Brito

et al. 2020

Arq. Inst. Biol.

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“…In addition, vinasse is constituted by several organic acids, and in addition to being used in soil correction, it can be used to control some weeds by altering the weed emergence flux and herbicide amount and action [10]. According to Novo et al [27], sulfentrazone (700 g ha -1 ), when applied alone and on straw, or when combined with vinasse, on which the pesticide was applied before being added, controlled the initial development of Cyperus rotundus (nut grass). Table 1 shows the final dry biomass accumulation values with the interaction between byproducts and herbicides.…”

Section: Resultsmentioning

confidence: 99%

Effect of Sugar and Alcohol Industry Byproducts on Pre-Emergence Herbicide Efficacy

Jeronimo

Silva

Schendenffeldt

et al. 2019

JEAI

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The present study evaluate the effects of vinasse and filter cake on the efficacy of indaziflam, saflufenacil, and sulfentrazone for the control of morning glory (Ipomoea triloba L.) and crabgrass (Digitaria horizontalis Wiild), as well as the effects of these byproducts on the emergence of these weeds. The experiments were established in a greenhouse with a completely randomized design and four replications at the Agricultural Science Center, Sao Paulo, Brazil, between May 2017 and May 2018. In the first assay, four herbicide doses: indaziflam (0, 37.5, 75, and 150 g ai ha-1), saflufenacil (0, 42, 84, and 168 g a.i ha-1), and sulfentrazone (0, 300, 600, and 1200 g ai ha-1) were applied for pre-emergent weeds in three soil covers (without byproduct, with vinasse, and with filter cake).In the second assay, seven treatments were evaluated, comparing the effects of the different vinasse and filter cake doses, and absence of byproduct on the weeds emergence. When the doses required for 80% effective control were considered, the results showed that for indaziflam, the filter cake negatively affected crabgrass control. In contrast, vinasse had a positive effect on morning glory control by saflufenacil. For sulfentrazone, the filter cake had a negative effect, requiring twice the dose used on the treatment without byproduct for effective morning glory control. Relative to assay 2, the vinasse addition affected the emergence of morning glory but not of crabgrass; however, the filter cake increased the weed biomass accumulation. Vinasse and filter cake byproducts can negatively or positively affect the performance of pre-emergence herbicides, according to the active ingredient used. However, these effects occur at doses below those recommended for the herbicides. Byproducts can affect the emergence and the weed biomass accumulation.

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“…A viabilidade de tubérculos e a altura de plantas de tiririca foram reduzidos quando utilizado o herbicida imazapic (122,5 g i.a. ha -1 ) em relação ao tratamento controle (Novo et al, 2008b). No presente estudo, o imazapic reduziu número de manifestações epígeas, número…”

Section: Resultsunclassified

Manejo de >i<Cyperus rotundus>/i< L. em cana-de-açúcar no sistema de mudas pré-brotadas (MPB)

Giraldeli¹

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Interação de imazapic no sistema integrado palha de cana-de-açúcar, herbicida e vinhaça no crescimento inicial da tiririca

Cited by 5 publications

References 12 publications

Viability of Cyperus rotundus L. tubers after application of herbicide in pre- and postemergence

Viability of Cyperus rotundus L. tubers after application of herbicide in pre- and postemergence

Effect of Sugar and Alcohol Industry Byproducts on Pre-Emergence Herbicide Efficacy

Manejo de >i<Cyperus rotundus>/i< L. em cana-de-açúcar no sistema de mudas pré-brotadas (MPB)

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