The influence of nitrogen fertilisers and fungicide on the yield and quality of spring barley
2001
Braziene, Z. (Lithuanian Inst. of Agriculture (Lithuania). Rumokai Experimental Station)
Spring barley grain of the new registered Lithuanian variety 'Alsa' and German malty variety 'Otis' cultivation, the influence of different rates of nitrogen fertilisers and fungicide Tango on their yield and quality was investigated in the Rumokai Research Station of the Lithuanian Institute of Agriculture in 1998-2000. It was established that nitrogenous fertilisers have been increasing grain yield in the spring barley 'Alsa' every year. The influence of nitrogen fertiliser was negative on the spring barley 'Otis' only for the 1998 yield due to meteorological conditions, that were favourable for spreading leaf diseases. Fungicide Tango gave a reliable yield increase - from 0,21 to 1,14 t ha*[-1) - through the whole investigation period. The amount of proteins in grains was reliably increasing due to nitrogenous fertilisers within all the years of investigation, excluding the year 1999. Meteorological conditions made a great influence on protein amount in 1999. No reliable interaction was established between nitrogenous fertilisers, grain size and starch. Medium or strong negative correlation was observed between the grain size and proteins (correlation coefficient was deviating from 0,40 to 0,81). A reliable positive correlative relation was established between starch and grain size in 1998 only.
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