Premium
Influence of Nitrogen Supply on Yield and Quality of Sugar Beet
Author(s) -
Märländer Bernward
Publication year - 1990
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19901530508
Subject(s) - sugar , sugar beet , chemistry , yield (engineering) , nitrogen , potassium , zoology , agronomy , food science , biology , materials science , organic chemistry , metallurgy
Abstract Sugar beet ( Beta vulgaris , cv Novadima) was grown from 1980 to 1988 on a luvisol from loess in Northwest‐Germany always at the same uniformly cropped site. N‐fertilizer levels ranged from 2 to 211 kg N/ha. Root yield, sugar yield and white sugar yield increased with increasing N‐supply and reached maximum values at 159, 136 and 129 kg N/ha, respectively. Root yield showed no or only a slight decrease, whereas sugar yield and white sugar yield decreased with N‐levels beyond optimum. Sugar concentration and white sugar concentration decreased with increasing N‐supply, white sugar concentration showed a greater response. Sugar concentration was highest at 32 kg N/ha and decreased slightly with less N‐supply. Concentration of potassium was not altered, the concentration of amino‐N showed a great increase and sodium increased slightly with more N, being lowest at 36 kg N/ha with a very small increase with less N. Sugar loss was less affected than concentration of sodium and amino‐N and response of sugar gain was lower than response of sugar loss. White sugar yield formed a broad optimum and decreased by only 2% from the maximum value within a range of approx. 100 kg N/ha.