Nitrates content and its changing in water for irrigation during the period 1995 - 2008 | Dynamika obsahu dusičnanov v závlahových vodách v rokoch 1995 až 2008
2009
Píš, V., Výskumný ústav pôdoznalectva a ochrany pôdy, Bratislava (Slovak Republic) | Nágel, D., Výskumný ústav pôdoznalectva a ochrany pôdy, Bratislava (Slovak Republic) | Nováková, K., Výskumný ústav pôdoznalectva a ochrany pôdy, Bratislava (Slovak Republic)
In this paper are evaluated trends of nitrates content in sixth water basins (with surface water) and in fifth grawel pits (with ground water) during the period 1995 - 2008. Localities have been selected with nitrates content more than 2 mg per l. Nitrates content in water for irrigation has been evaluated by linear trend. Based on the evaluation of achievements it was found that the nitrates content in water for irrigation has degreesing trend, except grawel pit Žombek in Dvory nad Žitavou, where has been upward trend. It was found that the nitrates content of grawel pit is higher than in water basins. There have been in water basins average nitrates content 5.70 mg per l and in grawel pits 21.5 mg per l.
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