Content of Mineral Nitrogen in Soil at the Beginning of Sorghum Development after Application of Polyolefin-Coated Urea
Ewelina Szydełko-Rabska, Józef Sowiński
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Department of Crop Production,
Wroclaw University of Environmental and Life Sciences, Poland
Pol. J. Environ. Stud. 2014;23(1):211-214
In 2010-12 a field experiment aimed at assessing the content of mineral nitrogen (N-NO3, N-NH4) in the tilled layer (0-30 cm) and subsoil (30-60 cm), and the level of nutrition of sucrosorgo were conducted in research in Pawłowice at Wroclaw University of Environmental and Life Sciences. The influence of: urea and polyolefin-coated urea (Meister®), in comparison to the control without fertilizing were studied. The fertilizer was applied before sorghum sowing in doses of 60 and 120 kg N·ha-1.
Meister® in comparison to urea, positively influenced the decreasing of N-NO3 accumulation in both soil layers, with higher N-NH4 concentrations in the tilled layer.
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