Effect of drought stress on content of calcium in dry matter and its offtake aboveground phytomass by growing spring barley plants | Obsah vápnika v sušine a jeho odber nadzemnou fytomasou pripestovaní jačmeňa jarného v podmienkach stresu zo sucha
2011
Krček, M., Slovenská poľnohospodárska univ., Nitra (Slovak Republic) | Slamka, P. | Golisová, A.
Effect of N-nutrition (0 g; 1 g; 2 g N per pot, respectively) at two levels of water regime (optimal water regime vs. water stress) during three growth stages (tillering, shooting and earing) were investigated in pot vegetation trial with spring barley (variety of Kompakt) under atmosferic conditions on brownsoil in years (2005-2007). Each variant was four times repeated. Chosen agrochemical parameters of spring barley were examined in the experiment. Nitrogen fertilization increased concentration of N in barley aboveground phytomass and had no effect on Ca content. The offtake of analysed nutrient (Ca) by aboveground phytomass of barley was significantly higher if plants were grown under optimal moisture conditions in comparison with variants exposed to water stress during each growth stage. Nitrogen fertilization increased uptake of studied nutrient in comparison with unfertilized control. This phenomenon was observed under both water regimes and all growth stages.
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