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Swiss chard is recognized as valuable leafy vegetable species with short growing period suitable for cultivation as forecrop and aftercrop in crop rotation .Till now is still a minor crop in Poland and there are not existing any data describing the response of this species to nitrogen fertilization and the effect of this nutrient on plant composition. In a field experiment conducted in 2004–2006,...
The purpose of the investigation was the assessment of the effect of fertilization with different form and dose of nitrogen as well as harvest term on yield, chlorophyll, carotenoids and polyphenols content, and antioxidant activity of stinging nettle (Urtica dioica L.) leaves. The lowest total yield obtained from three-year-lasting plantation resulted from preplant fertilization with lime saltpeter...
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