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Influence of heavy metals on bromoxynil decay in soil from Legnica-Głogow Copper District

100%

Kalitowska O., Kucharski M.

Progress in Plant Protection

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2017

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tom 57

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nr 1

2

Influence of copper on acetochlor degradation in soil

80%

Sadowski J., Kucharski M., Wrobel S., Kalitowska O.

Progress in Plant Protection

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2013

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tom 53

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nr 4

The aim of the studies was to determine the influence of copper on acetochlor degradation in soil. The experiment was carried out in laboratory conditions (plant growth chamber). Acetochlor was applied to two different soils (similar textures, pH, organic carbon content and contrasting copper content: soil contaminated by copper and soil with low copper concentration). Soil samples were taken for analyses 1 hour (initial concentration) and 2, 4, 8, 16, 32, 64 and 96 days after treatment. Acetochlor residue was analysed using GC/ECD (gas chromatography with electron capture detector). Good linearity was found between logarithmic concentration of acetochlor residues and time. The differences in copper content influenced the acetochlor decay in soil. Values of DT50 obtained in the experiment varied from 9 to 22 days. A high concentration of copper in soil slowed down of acetochlor degradation (the DT50 value was higher – 22 days).

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Influence of application date and adjuvant on chlortoluron residues and quality of winter wheat grain

80%

Kucharski M., Sadowski J., Kalitowska O.

Progress in Plant Protection

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2013

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tom 53

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nr 2

The aim of the studies was to determine the influence of herbicide application date and adjuvants on weed control efficacy, residues and quality parameters of winter wheat grain. Field experiment was conducted in the years 2010–2012. Chemical weed control in winter wheat was carried out with commercial formulation of chlortoluron (herbicide Tolurex 500 SC). Herbicide was applied separately at recommended and reduced doses and at reduced dose in mixture with adjuvants as a preemergence application in the autumn and as a postemergence treatment in the late autumn and in the spring. Phytotoxicity and efficacy of herbicide and its mixtures with adjuvants were evaluated in the experiments. Moreover, the residue of chlortoluron in soil and grain of winter wheat and wheat grain quality were analyzed. No phytotoxic effects of used herbicide (separately and jointly with adjuvant) and application date on winter wheat were stated. Application of herbicide with adjuvant allowed reducing the herbicide dose (without loss of weed control efficacy). The addition of adjuvants caused a significant increase in the weed control and the herbicide residues in soil and grain samples as compared to the treatments with herbicide that was used separately (at reduced dose). Application of herbicide, herbicide with adjuvant and application date did not influence quality parameters of wheat grain. The highest yield of grain and weed control efficacy was obtained after preemergence, autumn application of herbicide and the highest chlortoluron residue level was determined in soil and grain samples from plots treated in spring.

Ograniczanie wyników

3 Progress in Plant Protection

3 Kalitowska O.

3 Kucharski M.

2 Sadowski J.

1 Wrobel S.

1 2017

2 2013

Influence of heavy metals on bromoxynil decay in soil from Legnica-Głogow Copper District

Influence of copper on acetochlor degradation in soil

Influence of application date and adjuvant on chlortoluron residues and quality of winter wheat grain