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A field experiment was conducted on a very good rye soil complex to study the effect of contact fungicides to control Phytophihora infestans on tuber yield and quality of six potato cultivars. The following fungicides were used: Dithane M-45, Miedzian 50, Cynkomiedzian and Cynkotox. Nitrogen rates were as follows: 0, 50, 100, 150 and 200 kg N/ha. The applied fungicides increased the tuber yield by...
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