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Field experiments were conducted in 2005–2008 at Bonin. The aim of research was to investigate the metribuzin phytotoxicity, its influence on tuber yield and content of starch and dry mass of 5 potato cultivars (Denar, Lord, Molli, Satina and Sonda). Metribuzin was applied after emergence of potato plants (10–15 cm high). Among 5 tested cultivars, only Sonda and Molli were sensitive to metribuzin,...
A field experiment on the effect of insecticides applied against Colorado beetle on potato nutrient yields was conducted in 2004–2006 at the Experimental Farm in Zawady, belonging to the University of Podlasie in Siedlce. Two experimental factors were studied: I – potato cultivars: Wiking, Mors, Żagiel; II – chemical control of the post including: 1. control object (without chemical treatments); 2...
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