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Cultivation of Brassica pekinensis under different forms of nitrogen nutrition

Author

Listed:
  • L. Ducsay

    (Slovak University of Agriculture, Department of Agrochemistry and Plant Nutrition, Nitra, Slovak Republic)

  • L. Varga

    (Slovak University of Agriculture, Department of Agrochemistry and Plant Nutrition, Nitra, Slovak Republic)

Abstract

A pot trial was aimed to investigate the effect of different forms of nitrogen fertilizer on the aboveground phytomass yield, vitamin C content and uptake of some macroelements by Brassica pekinensis. The trial was conducted in 2000 and 2001 in pots containing 10 kg of loamy brown soil. Optimized NPK nutrition with the rate of 90.9 kg/ha N increased phytomass yields of Chinese cabbage in all treatments compared to the unfertilized control. The most marked increase (by 55.6%) of yield was obtained when N was applied in the form of (NH4)2 SO4. The yields in the other treatments declined as follows: NH4NO3 > Mg (NO3)2 > KNO3 > DAM-390. Positive effects of full NPK nutrition on vitamin C content were determined. Depending on the forms of N fertilizer, the content of vitamin C in fresh mass of cabbage decreased in the following order: DAM-390 (629.0 mg/kg of fresh mass) >Mg(NO3)2 > KNO3 > NH4NO3 > (NH4)2SO4. Optimization of NPK rates contributed to the increase in N, P, K, Ca, Mg and S uptake by the yield of final product in comparison with unfertilized control. The highest uptake of nutrients was determined in the treatment with N applied in the form of (NH4)2SO4.

Suggested Citation

  • L. Ducsay & L. Varga, 2003. "Cultivation of Brassica pekinensis under different forms of nitrogen nutrition," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 30(3), pages 112-115.
    • Handle: RePEc:caa:jnlhor:v:30:y:2003:i:3:id:3871-hortsci
    DOI: 10.17221/3871-HORTSCI
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    References listed on IDEAS

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    1. Poudel, D. D. & Midmore, D. J. & Hargrove, W. L., 1998. "An analysis of commercial vegetable farms in relation to sustainability in the uplands of Southeast Asia," Agricultural Systems, Elsevier, vol. 58(1), pages 107-128, September.
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    Cited by:

    1. M. Koudela & K. Petříková, 2008. "Nutrients content and yield in selected cultivars of leaf lettuce (Lactuca sativa L. var. crispa)," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 35(3), pages 99-106.

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