Nitrogen in the soil-plant system, nitrogen balances.
2006
Németh, T.(Research Institute for Soil Science and Agricultural Chemistry (RISSAC) of the Hungarian Academy of Science)
On the basis of the nitrogen balance studies it was shown, that even when nitrate leached into the deeper layers (or found in the soil profile) was subtracted in the balance calculations, the nitrogen balances became positive only after yearly application of 250 kg N/ha. It means that applying the BMP (Best Management Practice) in fertilizer calculation, i.e. environmentally friendly fertilizer recommendation system - based on the environmental circumstances, soil conditions and the plant nitrogen demand - only limited amounts of surplus nitrogen can be detected in the soil-water system after the growing season.
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