Nitrogen Uptake from Different Sources by Soybean Grown at Different Sowing Densities

The objective of the research reported here was to determine amount nitrogen fixed from atmosphere and taken up mineral fertilizer soil reserves by soybean cv. Abelina grown at three densities (per 1 m2) under central European conditions. Moreover, an attempt made what individual sources removed field with seed yield introduced post-harvest residues that will be source this macronutrient for following plants. were used: A1–50 seeds, A2—70 seeds A3—90 per m2. share derived atmosphere, total plant biomass 46.28, 45.52 8.2%, respectively. whole accumulated 58.51, 52.85 9.71 kg N?ha?1 respective sources. An average 95.24 it being 46.17, 42.20 6.68 uptake fertilizer, incorporation into roots provided over 25.82 N?kg?1 associated all