A mineral profile of winter oilseed rape in critical stages of growth - magnesium

• Autorzy: Szczepaniak W. , Grzebisz W. , Lukowiak R. , Przygocka-Cyna K. , Nawrot K.
• Języki publikacji: EN

Abstrakty

EN

A high yield of oilseed rape can be achieved provided an adequate supply of magnesium and sulfur in critical stages of yield formation. The magnesium status in canopy was studied in the 2008, 2009 and 2010 growing seasons. A one factorial experiment consisting of six treatments, set up to verify the research hypothesis, was as follows: control (C), NP, NPK, NPK+ MgS - 1/3 of total planned dose applied in spring (NPKMgS1), NPK+1.0 MgS dose in autumn (NPKMgMgS2), NPK+MgS - 2/3 in autumn + 1/3 in spring (NPKMgS3). Plant samples were taken at three stages: rosette (BBCH 30), the onset of flowering (BBCH 61) and maturity (BBCH 89). An entire sample was partitioned in accordance with the growth stage into main plant organs: leaves, stems, straw and seeds. The yield of biomass, magnesium concentration and its content was determined in each part of the plant. The magnesium concentration in leaves at the onset of flowering can be used as the first predictor of yield. The predictive strength of the magnesium content in seeds as the final yield predictor corroborated the hypothesis of the importance of magnesium for the seed sink build-up. An analysis of relationships between the magnesium content in plant parts during the growing season and yield of seeds can be used to make an ex-post analysis of factors disturbing the development of yield structural components. The main cause of yield reduction in 2009 as compared to 2008 was the insufficient supply of magnesium to vegetative organs of oilseed plants since the onset of flowering. It was documented that the degree of magnesium supply to a growing silique is critical for the seed yield performance, as noted in 2008. It was also found that any disturbance in the magnesium supply to oilseed rape since the onset of flowering led to reduction in the seed density, which in turn decreased the magnesium seed sink capacity, as the study clearly demonstrated.

Słowa kluczowe

EN

mineral profile; winter oilseed rape; oilseed rape; plant part; critical stage; growth stage; magnesium; magnesium concentration; yield; structural component

• Wydawca: -
• Czasopismo: Journal of Elementology
• Rocznik: 2015
• Tom: 20
• Numer: 2
• Opis fizyczny: p.435-447,fig.,ref.

Twórcy

autor

Szczepaniak W.

• Chair of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 71F street, 60-625 Poznan, Poland

autor

Grzebisz W.

• Chair of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Poznan, Poland

autor

Lukowiak R.

• Chair of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Poznan, Poland

autor

Przygocka-Cyna K.

• Chair of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Poznan, Poland

autor

Nawrot K.

• Institute of Bio-systems Engineering, Poznan University of Life Sciences, Poznan, Poland

Bibliografia

• Diepenbrock W. 2000. Yield analysis of winter oilseed rape (Brassica napus L.): a review. Field Crops Res., 67: 35-49.
• FAOSTAT. 2014. Available online; accessed on 2014-02-17.
• Gerendás J., Fűhrs H. 2013. The significance of magnesium for crop quality. Plant Soil, 368: 101-128.
• Grzebisz W., Diatta J., Härdter R., Cyna K. 2010a. Fertilizer consumption patterns in Central European countries – effect on actual yield development trends in 1986-2005 – a comparative study of the Czech Republic and Poland. J. Cent. Europ. Agric., 11(1): 73-82.
• Grzebisz W., Przygocka-Cyna K., Szczepaniak W., Diatta J., Potarzycki J. 2010b. Magnesium as a nutritional tool of nitrogen management - plant production and environment. J. Elem., 15(4): 771-788.
• Grzebisz W., Łukowiak R., Biber M., Przygocka-Cyna K. 2010c. Effect of multi -micronutrient fertilizers applied to foliage on nutritional status of winter oilseed rape and development of yield forming elements. J. Elem., 15(3): 477-491.
• Grzebisz W. 2011. Magnesium – food and human health. J. Elem., 16(2): 299-323.
• Grzebisz W. 2013. Crop response to magnesium fertilization as affected by nitrogen supply. Plant Soil, 368: 23-39.
• Konys L., Wiśniewski P. 1984. Path analysis. Rocz. AR w Poznaniu, 102(20): 37-57. (in Polish)
• Spychaj-Fabisiak E., Murawska B., Pacholczyk Ł. 2011. Values of quality traits of oilseed rape seeds depending on the fertilization and plant density. J. Elem., 16(1): 115-124.
• Supit I., Van Diepen C.A., De Wit A.J., Kabat P., Barruth B., Ludwig F. 2010. Recent changes in the climatic yield potential of various crops in Europe. Agr. Syst., 103: 683-604.
• Sylv ester-Bradley R., Lunn G., Foulkes J., Shearman V., Spink J., Ingram J. 2002. Management strategies for yields of cereals and oilseed rape. HGCA conference: Agronomic intelligence: the basis for profitable production. HGCA, 18 pp.
• Szczepaniak W., Barłóg P., Łukowiak R., Przygocka-Cyna K. 2013. Effect of balanced nitrogen fertilization in four-year crop rotation on plant productivity. J. Cent. Europ. Agric., 14(1): 64-77.
• Szczepaniak W. 2014a. A mineral profile of winter oilseed rape in critical stages of growth - Nitrogen. J. Elem., 19(3): 759-778. DOI:10.5601/jelem.2014.19.1.600
• Szczepaniak W. 2014b. A mineral profile of winter oilseed rape in critical stages of growth - Potassium. J. Elem. (in press).
• Tonev T. 2006. Risk of cultivation and effect of mineral fertilization on winter oilseed rape under conditions of north-east Bulgaria. Plant Breed. Seed Sci., 53, 97-107.

Identyfikatory

DOI

10.5601/jelem.2014.19.2.636