Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Prośba-Białczyk U. , Regiec P. , Mydlarski M. 2001. IMPACT OF NITROGEN FERTILISATION ON THE TECHNOLOGICAL VALUE OF SUGAR BEET CULTIVAR ROOTS, EJPAU 4(1), #03.
Available Online: http://www.ejpau.media.pl/volume4/issue1/agronomy/abs-03.html

ABSTRACT

The present field experiment and lab investigations analysed the effect of nitrogen fertilisation at the rates of 0, 80, 160 and 240 kgˇha^-1 on the technological root value of the following cultivars ‘Action’, ‘Amelia’, ‘Atair’, ‘Cordelia’, ‘Dojana’, ‘Evita’, ‘Fontana’, ‘Gala’, ‘Hanna’, ‘Jupiter’, ‘Nilla’, ‘PN Mono 4’ ‘Sofie’ and ‘Sonja’. 80 and 160 kgˇha^-1 of N resulted in a significant increase in the single root weight, root yield and the biological sugar yield. Technological sugar yield justified only the application of 80 kgˇha^-1 of N. The increase in the technological sugar yield at 160 kgˇha^-1 of N was insignificant, while an increase in N rate up to 240 kgˇha^-1 made the yield correspond to that obtained for 80 kgˇha^-1 of N. With rates increasing by further 80 kgˇha^-1 of N, there were observed increases in the contents of alpha-amino N, sodium and potassium and decreased content of sucrose. The quality of ro

Key words: nitrogen, sugar beet root.

---