The weed infestation and yielding of potato depending on the method of weed control
Marek Gugała
marek.gugala@uph.edu.plKatedra Szczegółowej Uprawy Roślin, Akademia Podlaska, Siedlce (Poland)
Krystyna Zarzecka
Katedra Szczegółowej Uprawy Roślin, Akademia Podlaska, Siedlce (Poland)
Abstract
The field experiment was carried out in 2005–2007. It was set up in a split blocks design. The effects of two factors were evaluated: I — two potato cultivars (Irga and Balbina), II — four methods of weed control: 1. mechanical weed control alone as a control object, 2. combined mechanical and chemical weed control, including ridging and harrowing before potato emergence and treatment with herbicide Plateen 41,4 WG at a dose of 2.0 kg∙ha-1immediately before the emergence of potato plants, 3. combined mechanical and chemical weed control, comprising single ridging and treatment with herbicide Racer 250 EC applied at a dose of 3.0 l∙ha-1 up to 10 days after planting of potato tubers, 4. combined mechanical and chemical weed control, including ridging and harrowing in the period prior to potato emergence, and treatment with herbicide Sencor 70 WG, dosed 1.0 kg∙ha-1, immediately before the potato emergence. The work was aimed to evaluate the effectiveness of the methods applied to reduce potato crop infestation with weeds and to assess their effects on yielding of two cultivars of table potato. Fresh mass of weeds was determined twice, before closing of potato rows and before harvest of tubers. It significantly depended on the method of weed control and on the weather conditions during the vegetation seasons. The lowest fresh mass of weeds at both dates of evaluation was recorded with potato plots in which the herbicide Sencor 70 WG had been applied. No significant effects of the main crop, i.e. potato cultivars, on the rate of crop infestation with weeds was found. Statistical analysis showed that yield of potato tubers strongly depended on the cultivar, weed control method applied and the weather conditions in the vegetation periods.
Keywords:
cultivars, fresh mass of weeds, potato, total yield, weed control methodsReferences
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Authors
Marek Gugałamarek.gugala@uph.edu.pl
Katedra Szczegółowej Uprawy Roślin, Akademia Podlaska, Siedlce Poland
Authors
Krystyna ZarzeckaKatedra Szczegółowej Uprawy Roślin, Akademia Podlaska, Siedlce Poland
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