@article{losák_hlušek_kráěmar_varga_2008,  title={The effect of nitrogen and sulphur fertilization on yield and quality of kohlrabi (Brassica oleracea, L.)},  volume={32},  ISSN={0100-0683},  url={https://doi.org/10.1590/S0100-06832008000200024},  DOI={10.1590/S0100-06832008000200024},  number={2},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Losák, Tomáš and Hlušek, Jaroslav and Kráěmar, Stanislav and Varga, Ladislav},  year={2008},  month={Mar},  pages={697–703} }