Анотация: The field experiment was conducted during the period 2011-2014. Biochemical evaluation of forage mass of alfalfa variety Dara grown in two inter-row spacing in eight variants in conventional and biological conditions was carried out. The analysis shows that the forage mass of biological crops in inter-row spacing 37,5 cm distinguished by higher crude protein content - until 19,23percent, Mg - until 0,236percent, sugar - until 2,95percent and in vitro digestibility - until 63,06percent. In inter row spacing 12,5 cm forage mass produced by conventional technology is high and balanced levels of biochemical indicators. Regardless of conditions (factors) and inter row spacing of farming with the highest both general and structural elements (leaves, stems and roots) nitrate reductase activity of plants and total content of plastid pigments stand biological crops treated with bio preparation "Ecofil P".

Забележки: Наградени доклади "Best Paper" от 2016 г.