Weed control in maize (Zea mays L.) with effective minimum rates of foramsulfuron

Kamil KIR; M. Nedim DOĞAN

Article Details

Weed control in maize (Zea mays L.) with effective minimum rates of foramsulfuron

Authors:

Kamil KIR | M. Nedim DOĞAN

Publisher:

TUBITAK

Journal:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 6, pp.601-610

Document Type:

Article

Publication Date:

5/2009

Document Language:

Turkish

Document ID (Org No.):

2000808393

Frequency:

Bimonthly

eISSN:

1303-6173

pISSN:

1300-011X

Keywords:

Abstract:

 

Dose-response experiments were conducted under controlled conditions to determine the effective minimum rates (ED90) of foramsulfuron for 11 weed species that occur in maize growing areas in Turkey. Annual weeds were collected from maize fields in the cotyledon stage and transferred to pots containing a mixture of soil-turf (1:1 ratio). Perennial weeds were grown from rhizome pieces collected from infested fields. Weeds were then treated with different rates of foramsulfuron to determine the effective minimum rate (ED90) for each weed species via dose-response experiments. Results showed that ED90 rates were lower than the recommended herbicide rate for most weed species. Weeds were grouped with respect to their sensitivities into 5 different groups: ED90   100% of the recommended herbicide rate. In additional field experiments the performance of these rates applied alone or in combination with ammonium-sulphate on weed and maize grain yield was evaluated, and ED90 rates were determined for some weed species. The results show that 25% of the herbicide rate alone insufficiently controlled weeds; however, the addition of AS improved the effect of this rate. In general, the 50% rate was as efficient as the recommended rate and provided similar maize yield as obtained from plots treated with higher rates or from weed-free control plots. As compared to the ED90 rates determined under controlled conditions, effective minimum rates observed under field conditions were similar for some weed species, but higher for some others. In the case of total weeds the ED90 rate of the herbicide corresponded to 54% of the recommended herbicide rate. Results of these experiments suggest that weed control in maize can be effectively achieved with about half the recommended rate of foramsulfuron, without a loss in yield.

 

Dose-response experiments were conducted under controlled conditions to determine the effective minimum rates (ED90) of foramsulfuron for 11 weed species that occur in maize growing areas in Turkey. Annual weeds were collected from maize fields in the cotyledon stage and transferred to pots containing a mixture of soil-turf (1:1 ratio). Perennial weeds were grown from rhizome pieces collected from infested fields. Weeds were then treated with different rates of foramsulfuron to determine the effective minimum rate (ED90) for each weed species via dose-response experiments. Results showed that ED90 rates were lower than the recommended herbicide rate for most weed species. Weeds were grouped with respect to their sensitivities into 5 different groups: ED90   100% of the recommended herbicide rate. In additional field experiments the performance of these rates applied alone or in combination with ammonium-sulphate on weed and maize grain yield was evaluated, and ED90 rates were determined for some weed species. The results show that 25% of the herbicide rate alone insufficiently controlled weeds; however, the addition of AS improved the effect of this rate. In general, the 50% rate was as efficient as the recommended rate and provided similar maize yield as obtained from plots treated with higher rates or from weed-free control plots. As compared to the ED90 rates determined under controlled conditions, effective minimum rates observed under field conditions were similar for some weed species, but higher for some others. In the case of total weeds the ED90 rate of the herbicide corresponded to 54% of the recommended herbicide rate. Results of these experiments suggest that weed control in maize can be effectively achieved with about half the recommended rate of foramsulfuron, without a loss in yield.

Article Details

Weed control in maize (Zea mays L.) with effective minimum rates of foramsulfuron

Authors:

Kamil KIR | M. Nedim DOĞAN

Publisher:

TUBITAK

Journal:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 6, pp.601-610

Document Type:

Article

Publication Date:

5/2009

Document Language:

Turkish

Document ID (Org No.):

2000808393

Frequency:

Bimonthly

eISSN:

1303-6173

pISSN:

1300-011X

Key words: Weed

maize

foramsulfuron

ED90

dose-response

ammonium-sulfate

Issues

Article Details

Weed control in maize (Zea mays L.) with effective minimum rates of foramsulfuron

Authors: Kamil KIR | M. Nedim DOĞAN

Publisher: TUBITAK

Journal: Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 6, pp.601-610

Document Type: Article

Publication Date: 5/2009

Document Language: Turkish

Document ID (Org No.): 2000808393

Frequency: Bimonthly

eISSN: 1303-6173

pISSN: 1300-011X

Key words: Weed

maize

foramsulfuron

ED90

dose-response

ammonium-sulfate

Issues

Authors:

Kamil KIR | M. Nedim DOĞAN

Publisher:

TUBITAK

Journal:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 6, pp.601-610

Document Type:

Article

Publication Date:

5/2009

Document Language:

Turkish

Document ID (Org No.):

2000808393

Frequency:

Bimonthly

eISSN:

1303-6173

pISSN:

1300-011X