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Foliar fertilization with molybdenum in sunflower (Helianthus annuus L.)

Author

Listed:
  • P. Škarpa

    (Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Mendel University in Brno, Brno, Czech Republic)

  • E. Kunzová

    (Crop Research Institute, Prague, Czech Republic)

  • H. Zukalová

    (Department of Crop Production, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The objective of the vegetation experiment established in 2008-2011 was to explore the effect of the time and dose of foliar molybdenum (Mo) application on the yield and quality of sunflower. Four treatments were established in the experiment: (1) control - not fertilised with Mo; (2) application of 125 g Mo/ha in the growing stage of 4 developed leaves (V-4); (3) application of 125 g Mo/ha at the beginning of elongation growth (R-1), and (4) split rate of Mo application of 62 g Mo/ha at stage V-4 (4 developed leaves) and 62 g Mo/ha at stage R-1 (terminal bud forms). Foliar application of molybdenum increased the biomass production of sunflower plants and its content in dry matter. A statistically significant effect of molybdenum foliar application on sunflower yields was found. Foliar application of Mo up to a dose of 125 g Mo/ha at the beginning of vegetation (stage V-4) and developmental stage R-1 increased yields of achenes. The relative increase in the oil content after foliar nutrition was not significant and ranged between 1.4% and 2.6%. Oil production increased due to increased yields and stabilised oil content. Foliar application of molybdenum had no effect on the content of oleic acid.

Suggested Citation

  • P. Škarpa & E. Kunzová & H. Zukalová, 2013. "Foliar fertilization with molybdenum in sunflower (Helianthus annuus L.)," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 59(4), pages 156-161.
    • Handle: RePEc:caa:jnlpse:v:59:y:2013:i:4:id:663-2012-pse
    DOI: 10.17221/663/2012-PSE
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    References listed on IDEAS

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    1. P. Liu & Y.S. Yang & G.D. XU & Y.H. Fang & Y.A. Yang & R.M. Kalin, 2005. "The effect of molybdenum and boron in soil on the growth and photosynthesis of three soybean varieties," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(5), pages 197-205.
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