The effect of nitrogen and sulphur fertilization on yield and quality of kohlrabi brassica oleracea, l. Report as inadecuate




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Jaroslav Hlusek ; Stanislav Kráemar ; Ladislav Varga ;Revista Brasileira de Ciência do Solo 2008, 32 2

Author: Tomás Losák

Source: http://www.redalyc.org/


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Revista Brasileira de Ciência do Solo ISSN: 0100-0683 revista@sbcs.org.br Sociedade Brasileira de Ciência do Solo Brasil Losák, Tomás; Hlusek, Jaroslav; Kráemar, Stanislav; Varga, Ladislav THE EFFECT OF NITROGEN AND SULPHUR FERTILIZATION ON YIELD AND QUALITY OF KOHLRABI (Brassica oleracea, L.) Revista Brasileira de Ciência do Solo, vol.
32, núm.
2, 2008, pp.
697-703 Sociedade Brasileira de Ciência do Solo Viçosa, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=180214228024 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative THE EFFECT OF NITROGEN AND SULPHUR FERTILIZATION ON YIELD AND QUALITY OF. 697 THE EFFECT OF NITROGEN AND SULPHUR FERTILIZATION ON YIELD AND QUALITY OF KOHLRABI (Brassica oleracea, L.) (1) Tomáš Lošák(2), Jaroslav Hlušek(3), Stanislav Krá mar(4) & Ladislav Varga(5) SUMMARY In a greenhouse pot experiment with kohlrabi, variety Luna, we explored the joint effect of N (0.6 g N per pot = 6 kg of soil) and S in the soil (25–35–45 mg kg-1 of S) on yields, on N, S and NO3- content in tubers and leaves, and on alterations in the amino acids concentration in the tubers.
S fertilisation had no effect on tuber yields.
The ranges of N content in tubers and leaves were narrow (between 1.42– 1.48 % N and 1.21–1.35 % N, respectively) and the effect of S fertilisation was insignificant.
S concentration in the tubers ranged between 0.59 and 0.64 % S. S fertilisation had a more pronounced effect on the S concentration in leaf tissues where it increased from 0.50 to 0.58 or to 0.76 % S under the applied dose.
The NO 3content was higher in tubers than in leaves.
Increasing the S level in the soil significantly reduced NO3- concentrations in the tubers by 42.2–53.6 % and in the leaves by 8.8–...





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