The effect of various ways of nitrogen fertilization and systems of weed control on the yield of sugar beet on rendzina
Joanna Kurus
dziekanat.agbioinz@up.lublin.plKatedra Ekologii Rolniczej, Akademia Rolnicza w Lublinie (Poland)
Elżbieta Podstawka-Chmielewska
Katedra Ekologii Rolniczej, Akademia Rolnicza w Lublinie (Poland)
Abstract
In the field experiment carried out in the years 1996–1998 on the rendzina the influence of nitrogen doses (90 and 120 kg/ha), date of their application (twice and three times) as well as three ways of weeds control on sugar beet yield was investigated. It was stated that on rendzina the optimum nitrogen dose for sugar beets was 90 kg/ha. However dividing of the nitrogen doses into three parts and its applying in different dates gives the same effect in the form of root yield as nitrogen fertilizing in two dates. Different ways of weed control, compared in the experiment turned out equally effective. Nevertheless, joint chemical and mechanical weed control resulted in a slightly higher root yield than the chemical one. The tested experimental factors had no significant effect on the technological value of sugar beet roots.
Keywords:
date of nitrogen application, nitrogen doses, sugar beet, technological value, weeds control, yieldReferences
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Authors
Joanna Kurusdziekanat.agbioinz@up.lublin.pl
Katedra Ekologii Rolniczej, Akademia Rolnicza w Lublinie Poland
Authors
Elżbieta Podstawka-ChmielewskaKatedra Ekologii Rolniczej, Akademia Rolnicza w Lublinie Poland
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