COMPETITION FOR NITROGEN BETWEEN SPRING WHEAT AND SPRING BARLEY IN THE CONDITIONS OF VARIOUS NPK FERTILIZATION
作者： Kinga Treder , Maria Wanic
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摘要: In pot experiment, carried out according to the additive pattern on medium soil fertilized with standard and 50% higher dose of NPK, effect competitive interactions between spring wheat barley was estimated nitrogen accumulation in above-ground mass, distinction stems, leaves, spikes. Studies included three series, which were years 2003-2004 five periods set by rhythm development pure sowing, namely phases: emergence (BBCH 10-13), tillering (23), straw shooting (32), earing (55), ripening (87-89). a mixture, both cereals accumulated less mass than sowing starting from phase until end growth. wheat, decrease similar degree straws, leaves spikes, during it more clearly marked straws Doses mineral fertilization NPK had no barely grown mixed sowing. Competition for started grew phase, after decreased slightly. Almost entire period common growth, demonstrated be stronger competitor gaining. On bedding richer intensive poorer one.
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