Full TGIF Record # 16060
Item 1 of 1
Publication Type:
Author(s):Bergareche, C.; Simon, E.
Author Affiliation:Department of P;ant Pphysiology University of Barcelona
Title:Nitrate and Ammonium Accumulation in Bermudagrass in Relation to Nitrogen Fertilization and Season
Source:Plant and Soil. Vol. 119, No. 1, September 1989, p. 51-57.
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF02370268
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Cynodon; Nitrogen; Fertilization
Abstract/Contents:Seasonal changes in nitrate and ammonium concentrations were studied in Cynodon dactylon(L.) Pers. plants grown for one year in the field in a Mediterranean area. Plants cultivated in a sandy loam soil were fertilized with nitrate-N or ammonium-N at two application rates (250 and 1000 kg N ha-1 year-1) and compared to controls with no added N. Plots were harvested every three weeks from May to November. Shoots were separated into leaves and stems and analyses carried out in both fractions. Nitrogen applications generally led to elevated nitrate concentreations both in leaves and stems at all sampling dates but had little influence onb the ammonium concentrations of the tissues. Higher nitrate and ammonium concentrations were found in stems than in leaves, although no levels higher than 0.22% NO-3-N and 0.10% NH+4-N were detected in either fraction. Nitrate tended to accumulate mostly in autumn and spring whereas low accumulations were found in summer. Ammonium showed both in leaves and stems a progressive buy limited accumulation throughout the period with a peak in October, followed by a strong decrease in November.
Geographic Terms:Mediterranean
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bergareche, C., and E. Simon. 1989. Nitrate and Ammonium Accumulation in Bermudagrass in Relation to Nitrogen Fertilization and Season. Plant Soil. 119(1):p. 51-57.
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