Ragweed (Ambrosia artemisiifolia L.): In weed vegetation of the Republic of Srpska

Kovačević, Zlatan; Šumatić, Nada; Janjić, Vaskrsija; Mitrić, Siniša; Kelečević, Biljana

doi:10.5937/actaherb1502109k

Acta herbologica

2015

DOI: 10.5937/actaherb1502109k

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Ragweed (Ambrosia artemisiifolia L.): In weed vegetation of the Republic of Srpska

Zlatan Kovačević¹,

Nada Šumatić²,

Vaskrsija Janjić³

et al.

Abstract: U radu su predstavljeni višegodišnji rezultati istraživanja prisustva vrste Ambrosia artemisiifolia L. u korovskim zajednicama na teritoriji Republike Srpske. Snimanje korovske vegetacije vršeno je metodom Braun- Blanquet-a (1964). Ambrosia artemisiifolia L. je konstatovana u devet zajednica od kojih je najzastupljenija u asocijaciji Panico-Galinsogetum parviflorae Tüxen et Becker (1942). Posebno je značajno prisustvo u okopavinskim usjevima, strništu i višegodišnjim zasadima. U vinogradima Ambrosia artemisi… Show more

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Efficacy of soil herbicides in controlling common ragweed depending on the amount and the number of days after herbicide application

Mitrić¹,

Golić²,

Janjić³

et al. 2021

Acta herbologica

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The effectiveness of 12 pre-em herbicides in controlling ragweed was studied: atrazine, alachlor, acetochlor, alachlor+linuron, S-metolachlor, pendimethalin, metribuzin, prometryn, napropamide, imazethapyr, oxyfluorfen and dichlobenil. The research was conducted over two years, where the herbicides were applied in May on soil that had been prepared for sowing, but not sown. The efficacy was observed 30, 45 and 60 days after the application. Herbicides were used in 4 different doses: D1 which is ½ of the recommended dose, D2 is the lowest recommended dose, D3 is the highest recommended dose and D4 is the dose where the herbicides were used with the dose higher than it is recommended (D3×1,5). Efficacy is expressed as the percentage of efficacy for the number and fresh weed biomass, compared to the control. Coefficient of multiple correlation between the percentage of efficacy (PE), as a dependent variable, and the dose (D) and the number of days from the application of herbicides (DAA), as independent variables is statistically significant and in all cases it ranges between 0,853** and 0,961****. Partial correlation coefficient of efficacy percentage dependent on the herbicide dose is positive and in almost all cases highly significant, varying from 0,739** to 0,956****. Partial correlation coefficient between the herbicide efficacy percentage for common ragweed biomass and time after herbicide application is negative and statistically significant, or highly significant and varies between -0,606* and -0,904***. The partial correlation coefficient of the herbicide efficiency percentage for the common ragweed plant number and days after herbicide application, is also negative and varies, depending on the herbicide, between -0,182NZ and -0,923****.

show abstract

Efficacy of soil herbicides in controlling common ragweed depending on the amount and the number of days after herbicide application

Mitrić¹,

Golić²,

Janjić³

et al. 2021

Acta herbologica

Self Cite

View full text Add to dashboard Cite

show abstract

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Ragweed (Ambrosia artemisiifolia L.): In weed vegetation of the Republic of Srpska

Cited by 1 publication

References 0 publications

Efficacy of soil herbicides in controlling common ragweed depending on the amount and the number of days after herbicide application

Efficacy of soil herbicides in controlling common ragweed depending on the amount and the number of days after herbicide application

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