A possibility to use zinc in protection of potatoes against early blight
Jerzy Osowski
j.osowski@ihar.edu.plZakład Nasiennictwa i Ochrony Ziemniaka w Boninie, Instytut Hodowli i Aklimatyzacji Roślin w Radzikowie (Poland)
Abstract
The efficacy of different leaf fertilizers in reducing the incidence of early blight in potato plants was compared in the field investigations carried out in the years 2003–2004 in Bonin. Six variants of plant protection were assessed. The best results were obtained with the following variants: (2x) Basfoliar 12-4-6, applied at a dose of 2.0 l/ha (rate of efficacy 86%), and half-dose chemical protection (Antracol 70 WG, Unikat 75 WG) + Basfoliar 12-4-6 (2 l/ha) (rate of efficacy 85.3%).
Keywords:
chemical control, dose reduction, early blight, leaf fertilization, zincReferences
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Authors
Jerzy Osowskij.osowski@ihar.edu.pl
Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie, Instytut Hodowli i Aklimatyzacji Roślin w Radzikowie Poland
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