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Potassium is the main mineral component of potato tubers. With a high level of potato consumption, the crop also supplies the human organism with magnesium and phosphorus. The content of mineral components in potato tubers may change as an effect of agrotechnical factors. The aim of the study was to determine the effect of the type of cover (perforated polyethylene film, polypropylene fibre) and date...
A field experiment was conducted in central-eastern Poland in the years 1999-2003. It analyzed the effect of catch crop green fertilizers on soil humidity in a three-year-long crop vegetable rotation (white cabbage, onion, red beet). Oats, field pea and spring vetch cultivated in pure sowing and as mixtures were used as green fertilizers. The effect of green manures was compared with ploughed in farmland...
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