Effect of different doses of mineral nitrogen and Rhizobium meliloti strains on synthesis of free aminoacids in lucerne aboveground mass

摘要

The effect of different doses of mineral nitrogen and Rhizobium meliloti strains on synthesis of free amino acids in lucerne aboveground mass was investigated. It has been found that the plants grown on minimum nitrogen doses (0.5 a normal under vegetative conditions; 30 kg per ha of ammonium nitrate under field conditions)have optimum amino acid composition at the budding stage. Use of the higher doses of mineral nitrogen mainly resulted in the decrease of free amino acids synthesis.