Wyniki wyszukiwania

1

Method of evaluation of spray deposit and coverage on artificial targets

100%

Holownicki R., Doruchowski G., Swiechowski W., Jaeken P.

Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

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2002

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tom 05

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nr 1

The paper presents the method of quantitative and qualitative evaluation of spray application based on deposit and coverage measurements on artificial targets. This relatively simple and fast method is proposed for small scale comparative field experiments with air-assisted orchard sprayers. Biological efficacy, being very important for the grower, is not enough informative method of evaluation of spraying technique from the cognitive point of view. Therefore fluorescent dye and filter paper as artificial targets was proposed. Water Sensitive Papers (WSP) are the most common artificial targets for spray coverage evaluation. Spray coverage expressed as a percentage of target area covered by spray give additional information what portion of protected area is in direct contact with the chemical. The method is demonstrated for the Joco tunnel sprayer and conventional air-assisted sprayers.

2

Effect of spray emission system and air-jet setting on deposit and loss of spray in apple orchard

84%

Doruchowski G., Holownicki R., Godyn A.

Journal of Fruit and Ornamental Plant Research

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1997

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tom 05

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nr 3-4

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Orzęski jako wskaźniki przebiegu oczyszczania ścieków na złożach zraszanych. Część II. Badania eksperymentalne

67%

Stanislawska J.

Roczniki Państwowego Zakładu Higieny

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1963

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tom 14

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nr 6

4

Spray deposit, spray loss and biological efficacy of chemicals applied with different spraying techniques in black currants

67%

Doruchowski G., Labanowska B., Goszczynski W., Godyn A., Holownicki R.

Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

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2002

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tom 05

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nr 2

A directed air-jet sprayer (SEPIA) was compared with a conventional radial flow sprayer (TERMIT) to determine possible control of spider mites (Tetranychus urticae Koch) and currant rust (Cronartium ribicola J. C. Fisher) on black currants when using spray volumes 260, 400 and 600 dm3 ha-1 and different dose rates of chemicals. The Cumulative Infestation Index (CII) for spider mite and percentage of infected leaves for currant rust were evaluated to determin the biological efficacy of applications. The spray deposition across the bushes and spray loss to the soil and to the air were assessed in order to compare the quality of treatments. The efficacy of pest and disease control was reduced for the lower chemical dose rates. Both the sprayers produced similar deposits within currant bushes, however, the directed air-jet sprayer caused considerably lower spray loss than did the conventional sprayer.

5

Uniformity of spray deposit within apple tree canopy as affected by direction of the air-jet in tunnel sprayers

67%

Holownicki R., Doruchowski G., Swiechowski W.

Journal of Fruit and Ornamental Plant Research

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1997

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tom 05

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nr 3-4

Ograniczanie wyników

2 Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering

2 Journal of Fruit and Ornamental Plant Research

1 Roczniki Państwowego Zakładu Higieny

4 Doruchowski G.

4 Holownicki R.

2 Godyn A.

2 Swiechowski W.

1 Goszczynski W.

1 Jaeken P.

1 Labanowska B.

1 Stanislawska J.

2 2002

2 1997

1 1963

Method of evaluation of spray deposit and coverage on artificial targets

Effect of spray emission system and air-jet setting on deposit and loss of spray in apple orchard

Orzęski jako wskaźniki przebiegu oczyszczania ścieków na złożach zraszanych. Część II. Badania eksperymentalne

Spray deposit, spray loss and biological efficacy of chemicals applied with different spraying techniques in black currants

Uniformity of spray deposit within apple tree canopy as affected by direction of the air-jet in tunnel sprayers