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The influence of potassium to mineral fertilizers on the maize health

作  者:
Bocianowski, Jan;Szulc, Piotr;Tratwal, Anna;Nowosad, Kamila;Piesik, Dariusz
单  位:
Wroclaw Univ Environm & Life Sci, Dept Genet Plant Breeding & Seed Prod, PL-53363 Wroclaw, Poland;Natl Res Inst, Inst Plant Protect, Dept Pests Methods Forecasting & Plant Protect Ec, PL-60318 Poznan, Poland;Poznan Univ Life Sci, Dept Agron, PL-60632 Poznan, Poland;UTP Univ Sci & Technol, Dept Entomol & Mol Phytopathol, PL-85225 Bydgoszcz, Poland;Poznan Univ Life Sci, Dept Math & Stat Methods, PL-60637 Poznan, Poland
关键词:
cultivars;maize diseases;mineral fertilization;pests
摘  要:
Field experiments (2009-2011) were conducted at the Department of Agronomy at Poznan University of Life Sciences on the fields of the Research Institute in Swadzim. We evaluated the health of maize plants of two types, depending on the variations in mineral fertilization. The conducted research recorded the occurrence of pests such as oscinella frit (Oscinella frit L.) and the European corn borer (Pyrausta nubilalis Hbn.). Diseases recorded during the research included two pathogenes: Fusarium (Fusarium ssp.) and corn smut (Ustilago maydis Corda). It was shown that the meteorological conditions during the maize vegetation had a significant influence on the occurrence of pests. Adding potassium to mineral fertilizers increased the maize resistance to Fusarium. Cultivation of "stay-green" cultivar shall be considered as an element of integrated maize protection. The occurrence of oscinella frit was correlated with the occurrence of Fusarium as well as the occurrence of the European corn borer for both examined cultivars.

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