engleski

Nitrate nitrogen leaching at different nitrogen fertilization levels

Increased rates of applied mineral nitrogen led to higher average values of NO3- N concentration in drainage water. At the treatments with 100 and 150 kg ha-1 N, average nitrate nitrogen concentration was lower than 10 mgL-1 for all years. At the treatments with higher doses of nitrogen, concentrations of NO3- N in drainage water were also higher, and they were in relation with quantities of applied nitrogen. Maximum average concentrations went up to 30 mgL-1 NO3- N at treatment with 300 kg ha-1 N.

nitrate nitrogen; leaching; drainpipes

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