The practical use of decision support system NegFry in potato cultivation
Edward Bernat
e.bernat@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Radzików, Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie (Poland)
Abstract
The aim of research conducted in 2010–2011 was to compare the chemical protection against potato late blight conducted in an intensive system, and by a decision support system (DSS) NegFry. Research was carried out in the field of production in Przytocko (north part of Poland) for mid-early, table potato variety Asterix. The following variants of protection against Phytophthora infestans were compared: intensive (chemical protection starts at the beginning of closing the plant in a row, the application of fungicides every 5–10 days); according to DSS NegFry (the beginning of chemical protection, and the next application deadline according to calculations of DSS) and control (no protection against potato late blight). The intensive variant in 2010 consisted of 11 fungicide applications and in the year 2011 — 9 treatments. In the field, where we conducted chemical protection by decision support system NegFry in both research years 6 treatments were performed. The effectiveness of chemical protection in both treatment variants (intensive and acc. NegFry) in each year of research was more than 90%. The marketable yield (tubers greater than 30 mm) in the variants, which use chemical protection, was higher by about 31.5–130% compared to control.
Keywords:
chemical protection, decision support system NegFry, late blight, potatoReferences
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Authors
Edward Bernate.bernat@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Radzików, Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie Poland
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