Abstract
Mineral fertiliser consumption in Slovakia is approximately 42–57 kg NPK per hectare of farmland, while 10 years ago in 1989 it was 240 kg. Nitrogen fertilisers account for 66–71 % of this amount and phosphorus and potassium the remaining 29–34 %. The yields of the main crops (cereals, potatoes, sugar beet, oil plants, annual and perennial fodder crops) did not decrease with a similar tendency. Cereals, oil crops and fodder crops yields have decreased only by 10–30 %, while potato yields have been increased by 10 %, sugar beet yields by 10–15 % and corn maize by 25 %. This can be due to the relatively high rations of nitrogen fertilisers even to these plants and by sufficient supply of available forms of phosphorus and potassium in the soils.
Published Version
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