[Influence of mineral fertilizers and growth factors on productivity and quality of root crops of sugar beet]
2007
Tarasenko, N.I., Grodno State Agrarian Univ. (Belarus)
Research on studying of influence of mineral fertilizers and physiologically active substances on productivity and quality of root crops of sugar beet were spent to 2003-2005 on trial plot of agricultural industrial cooperative Koptevka in the Grodno region on sod-podsolic sandy loam soil. The experience scheme provided studying against 60 t/ha of organic fertilizers of three levels of mineral nutrition (NPK), calculated accordingly on productivity 450, 500 and 550 c/ha. Variant, where organic fertilizers were introduced only as a background, was used as the comparison. In addition at each level NPK physiologically active substances - stimulators Novosil, Ehpin, complex Stim were brought. The structure of complex Stim is presented by a polymetallic water concentrate (PWC) - 50 l/ha and sodium nitre of 50 kg/ha (8 kg/ha of nitrogen). For principle observance Unique Distinction in variants where complex Stim was applied, the nitrogen dose is reduced by 8 kg/ha. As a result of research it has been established, that the leading part in productivity and quality increase of sugar beet root crops belongs to mineral fertilizers. Entering of growth factors allows to receive not only an additional increase of root crops, but also to increase their sugar content, and also to decrease alpha-amino nitrogen
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