Summary
The effect of fertilizer nitrogen on the available amount of soil nitrogen was investigated in a greenhouse experiment. To 9 different soils, 0, 50, 100 and 200 kg N/ha were applied, resp., as (N15H4)2SO4 with an atom excess N-15 of 1%.
No priming effect could be found for any of the treatments. The available amount of soil N, expressed as AN value, was not affected by rate of N-fertilizer application.
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References
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Aleksic, Z., Broeshart, H. & Middelboe, V. The effect of nitrogen fertilization on the release of soil nitrogen. Plant Soil 29, 474–478 (1968). https://doi.org/10.1007/BF01348979
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DOI: https://doi.org/10.1007/BF01348979