Ekologinių trąšų poveikis vasarinių kviečių agrofitocenozei

Abstract

Experiments were conducted at the Perloja Exeperimental Station of LRCAF during the period 2010–2012. Results of the study on the effects of diferent fertilizers used to agrophytocenoses of spring wheat in a loamy sandy Orthi-Haplic Luvisol. The experiments were designed from the six treatments: 1. Unfertilized; 2. N90 (Biofer); 3. N90 (bone flour N45 ir green manure N45); 4. N90 (bone flour); 5. N90 (Biofer N45 ir bone flour N45); 6. N90 (Biofer N45 ir green manure N45). It is found that productive stem number is reliably increased when all ecologic fertilizer in different year is used except Biofer. It was found that Biofer fertilizer increases air dry mass of weed. When yield results compared it is found that all fertilizers reliably increased the yield of spring wheat (0.3–1.3 t ha-1)