Uptake and Utilization of Nitrogen from Organic Fertilizers Influenced by Different Doses of Copper

Copper is a microelement involved in the metabolism of nitrogen compounds plants. Good utilization from soil and fertilizers by plants requires an adequate supply copper. The aim study was to determine effect increasing levels copper (100, 200, 300 mg Cu·kg−1 soil) applied together with various organic (cattle manure, chicken spent mushroom substrate) on content uptake cocksfoot (Dactylis glomerata L.) coefficient fertilizers. pot experiment carried out three growing seasons (May–September) greenhouse, this grown harvested four cuts each year. were once first year before sowing cocksfoot, after-effect investigated second third years. Application different amounts did not influence biomass cocksfoot. At same time, application micronutrient amount 100 Cu∙kg−1 caused increase 200 fertilizers, which highest case cattle manure. All materials used increased its but greatest noted following showed no synergistic or antagonistic relationships between nitrogen.