INFLUENCE OF OUTSIDE ROOT TOP-DRESSING IODINE AND SELENIUM ON PRODUCTIVITY GREEN MASS AND GRAIN CORN AND MICROELEMENT COMPOSITION
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Abstract
Outside root top-dressing of corn by iodine in dozes 60 g/ha reactant with zinc in doze 150 g/ha reactant on different rates of mineral nutrition (50 t/ha manure+N120 P60 K120-rate 1 и 50 t/ha manure +N180 P90 K180-rate 2) gives increase productivity green mass on 67-80 c/ha and grain on 4,6-5,8 c/ha. Entering of iodine in dozes 60, 120, 180 g/ha reactant with zinc in doze 150 g/ha reactant increase contain iodine until optimal level in green mass corn. Influence above mentioned dozes on contain iodine in grain corn was evidence, but fall short optimal level (0,4-1,5 mg/kg dray mass ). Contain zinc in green mass was 20,0-24,3 mg/kg and grain corn was 21,0-24,5 mg/kg. Use selenium in dozes 30, 60, 90 g/ha reactant on different rates of mineral nutrition does not to really increase yield corn, but increase selenium content in green mass and grain corn until optimal level (100-500 mkg/kg dray mass ).
About the Authors
Yu. V. Klausova
Институт почвоведения и агрохимии НАН Беларуси, г. Минск
Russian Federation
Russian Federation
M. V. Rak
Институт почвоведения и агрохимии НАН Беларуси, г. Минск
Russian Federation
Russian Federation
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Review
For citations:
Klausova Yu.V., Rak M.V. INFLUENCE OF OUTSIDE ROOT TOP-DRESSING IODINE AND SELENIUM ON PRODUCTIVITY GREEN MASS AND GRAIN CORN AND MICROELEMENT COMPOSITION. Soil Science and Agrochemistry. 2009;(1):188-195. (In Russ.)
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