Physiological Aspects of Nitrogen Fertilizer Impact on Latvian Origin Cannabis Sativa L .

摘要: The aim of the present study was to evaluate nitrogen fertilizer impact on photosynthesis and yield hemp, applying modern non-destructive methods. main object investigation – hemp cultivar Latvian origin ‘Pūriņi’. Laboratory field experiments showed diverse effects different doses various parameters. Additional dose 60 kg ha-1 is most effective as evaluated by chlorophyll content in leaves changes a fluorescence Nitrogen negatively affected fiber stems, therefore while cultivating only for production use should be reduced. According seed mass results, additional applied following climatic conditions. In vegetation period guided with higher rainfall levels, per hectare can considered optimal amount. current hempseed oil composition not fertilizer. Also significant difference between N60 N100 variants has been observed. To avoid excessive usage, its negative plant physiology losses, we consider yield.